selectors.py
author sylvain.thenault@logilab.fr
Tue, 17 Feb 2009 23:16:13 +0100
branchtls-sprint
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"""This file contains some basic selectors required by application objects.
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A selector is responsible to score how well an object may be used with a
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given context by returning a score.
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In CubicWeb Usually the context consists for a request object, a result set
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or None, a specific row/col in the result set, etc...
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If you have trouble with selectors, especially if the objet (typically
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a view or a component) you want to use is not selected and you want to
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know which one(s) of its selectors fail (e.g. returns 0), you can use
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`traced_selection` or even direclty `TRACED_OIDS`.
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`TRACED_OIDS` is a tuple of traced object ids. The special value
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'all' may be used to log selectors for all objects.
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For instance, say that the following code yields a `NoSelectableObject`
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exception::
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    self.view('calendar', myrset)
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You can log the selectors involved for *calendar* by replacing the line
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above by::
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    # in Python2.5
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    from cubicweb.selectors import traced_selection
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    with traced_selection():
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        self.view('calendar', myrset)
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    # in Python2.4
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    from cubicweb import selectors
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    selectors.TRACED_OIDS = ('calendar',)
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    self.view('calendar', myrset)
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    selectors.TRACED_OIDS = ()
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:organization: Logilab
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:copyright: 2001-2009 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
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:contact: http://www.logilab.fr/ -- mailto:contact@logilab.fr
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"""
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__docformat__ = "restructuredtext en"
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import logging
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from warnings import warn
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from logilab.common.compat import all
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from logilab.common.deprecation import deprecated_function
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from logilab.common.interface import implements as implements_iface
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from yams import BASE_TYPES
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from cubicweb import Unauthorized, NoSelectableObject, role
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from cubicweb.vregistry import (NoSelectableObject, Selector,
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                                chainall, chainfirst, objectify_selector)
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from cubicweb.cwvreg import DummyCursorError
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from cubicweb.cwconfig import CubicWebConfiguration
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from cubicweb.schema import split_expression
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# helpers for debugging selectors
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SELECTOR_LOGGER = logging.getLogger('cubicweb.selectors')
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TRACED_OIDS = ()
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def lltrace(selector):
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    # don't wrap selectors if not in development mode
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    if CubicWebConfiguration.mode == 'installed':
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        return selector
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    def traced(cls, *args, **kwargs):
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        if isinstance(cls, Selector):
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            selname = cls.__class__.__name__
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            oid = args[0].id
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        else:
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            selname = selector.__name__
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            oid = cls.id
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        ret = selector(cls, *args, **kwargs)
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        if TRACED_OIDS == 'all' or oid in TRACED_OIDS:
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            #SELECTOR_LOGGER.warning('selector %s returned %s for %s', selname, ret, cls)
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            print 'selector %s returned %s for %s' % (selname, ret, cls)
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        return ret
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    traced.__name__ = selector.__name__
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    return traced
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class traced_selection(object):
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    """selector debugging helper.
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    Typical usage is :
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    >>> with traced_selection():
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    ...     # some code in which you want to debug selectors
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    ...     # for all objects
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    or
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    >>> with traced_selection( ('oid1', 'oid2') ):
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    ...     # some code in which you want to debug selectors
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    ...     # for objects with id 'oid1' and 'oid2'
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    """
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    def __init__(self, traced='all'):
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        self.traced = traced
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    def __enter__(self):
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        global TRACED_OIDS
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        TRACED_OIDS = self.traced
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    def __exit__(self, exctype, exc, traceback):
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        global TRACED_OIDS
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        TRACED_OIDS = ()
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        return traceback is None
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# abstract selectors ##########################################################
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class EClassSelector(Selector):
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    """abstract class for selectors working on the entity classes of the result
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    set. Its __call__ method has the following behaviour:
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    * if row is specified, return the score returned by the score_class method
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      called with the entity class found in the specified cell
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    * else return the sum of score returned by the score_class method for each
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      entity type found in the specified column, unless:
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      - `once_is_enough` is True, in which case the first non-zero score is
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        returned
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      - `once_is_enough` is False, in which case if score_class return 0, 0 is
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        returned
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    """
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    def __init__(self, once_is_enough=False):
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        self.once_is_enough = once_is_enough
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    @lltrace
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    def __call__(self, cls, req, rset, row=None, col=0, **kwargs):
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   133
        if not rset:
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   134
            return 0
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        score = 0
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   136
        if row is None:
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   137
            for etype in rset.column_types(col):
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   138
                if etype is None: # outer join
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   139
                    continue
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                escore = self.score(cls, req, etype)
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                if not escore and not self.once_is_enough:
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   142
                    return 0
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   143
                elif self.once_is_enough:
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   144
                    return escore
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   145
                score += escore
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   146
        else:
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   147
            etype = rset.description[row][col]
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   148
            if etype is not None:
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   149
                score = self.score(cls, req, etype)
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   150
        return score and (score + 1)
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   151
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   152
    def score(self, cls, req, etype):
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   153
        if etype in BASE_TYPES:
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   154
            return 0
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   155
        return self.score_class(cls.vreg.etype_class(etype), req)
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   156
        
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   157
    def score_class(self, eclass, req):
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   158
        raise NotImplementedError()
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   159
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   160
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   161
class EntitySelector(EClassSelector):
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   162
    """abstract class for selectors working on the entity instances of the
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   163
    result set. Its __call__ method has the following behaviour:
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   164
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   165
    * if row is specified, return the score returned by the score_entity method
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diff changeset
   166
      called with the entity instance found in the specified cell
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   167
    * else return the sum of score returned by the score_entity method for each
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   168
      entity found in the specified column, unless:
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   169
      - `once_is_enough` is True, in which case the first non-zero score is
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   170
        returned
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   171
      - `once_is_enough` is False, in which case if score_class return 0, 0 is
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   172
        returned
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diff changeset
   173
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   174
    note: None values (resulting from some outer join in the query) are not
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diff changeset
   175
          considered.
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   176
    """
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diff changeset
   177
    
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   178
    @lltrace
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   179
    def __call__(self, cls, req, rset, row=None, col=0, **kwargs):
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   180
        if not rset:
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   181
            return 0
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   182
        score = 0
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   183
        if row is None:
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   184
            for row, rowvalue in enumerate(rset.rows):
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   185
                if rowvalue[col] is None: # outer join
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   186
                    continue
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   187
                escore = self.score(req, rset, row, col)
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   188
                if not escore and not self.once_is_enough:
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   189
                    return 0
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   190
                elif self.once_is_enough:
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   191
                    return escore
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   192
                score += escore
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diff changeset
   193
        else:
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diff changeset
   194
            etype = rset.description[row][col]
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   195
            if etype is not None: # outer join
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   196
                score = self.score(req, rset, row, col)
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diff changeset
   197
        return score and (score + 1)
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   198
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   199
    def score(self, req, rset, row, col):
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   200
        try:
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   201
            return self.score_entity(rset.get_entity(row, col))
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   202
        except NotAnEntity:
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diff changeset
   203
            return 0
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   204
                                 
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   205
    def score_entity(self, entity):
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   206
        raise NotImplementedError()
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   207
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   208
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   209
# very basic selectors ########################################################
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   210
@objectify_selector
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   211
def yes(cls, *args, **kwargs):
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   212
    """accept everything"""
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   213
    return 1
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   214
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   215
@objectify_selector
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   216
@lltrace
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   217
def none_rset(cls, req, rset, *args, **kwargs):
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   218
    """accept no result set (e.g. given rset is None)"""
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   219
    if rset is None:
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   220
        return 1
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   221
    return 0
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   222
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   223
@objectify_selector
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   224
@lltrace
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   225
def any_rset(cls, req, rset, *args, **kwargs):
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   226
    """accept result set, whatever the number of result it contains"""
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   227
    if rset is not None:
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   228
        return 1
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   229
    return 0
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   230
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   231
@objectify_selector
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   232
@lltrace
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   233
def nonempty_rset(cls, req, rset, *args, **kwargs):
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   234
    """accept any non empty result set"""
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   235
    if rset is not None and rset.rowcount:
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   236
        return 1
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   237
    return 0
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   238
    
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   239
@objectify_selector
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   240
@lltrace
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   241
def empty_rset(cls, req, rset, *args, **kwargs):
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   242
    """accept empty result set"""
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   243
    if rset is not None and rset.rowcount == 0:
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   244
        return 1
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   245
    return 0
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   246
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@objectify_selector
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   248
@lltrace
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   249
def one_line_rset(cls, req, rset, row=None, *args, **kwargs):
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   250
    """if row is specified, accept result set with a single line of result,
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   251
    else accepts anyway
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   252
    """
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   253
    if rset is not None and (row is not None or rset.rowcount == 1):
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   254
        return 1
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   255
    return 0
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   256
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@objectify_selector
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   258
@lltrace
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   259
def two_lines_rset(cls, req, rset, *args, **kwargs):
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   260
    """accept result set with *at least* two lines of result"""
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   261
    if rset is not None and rset.rowcount > 1:
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   262
        return 1
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    return 0
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@objectify_selector
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@lltrace
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def two_cols_rset(cls, req, rset, *args, **kwargs):
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    """accept result set with at least one line and two columns of result"""
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    if rset is not None and rset.rowcount and len(rset.rows[0]) > 1:
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        return 1
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    return 0
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   272
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@objectify_selector
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@lltrace
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def paginated_rset(cls, req, rset, *args, **kwargs):
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    """accept result set with more lines than the page size.
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   277
    
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    Page size is searched in (respecting order):
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    * a page_size argument
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   280
    * a page_size form parameters
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   281
    * the navigation.page-size property
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   282
    """
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    page_size = kwargs.get('page_size')
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   284
    if page_size is None:
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        page_size = req.form.get('page_size')
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   286
        if page_size is None:
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   287
            page_size = req.property_value('navigation.page-size')
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   288
        else:
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            page_size = int(page_size)
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   290
    if rset is None or rset.rowcount <= page_size:
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   291
        return 0
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   292
    return 1
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   293
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@objectify_selector
650
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   295
@lltrace
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   296
def sorted_rset(cls, req, rset, row=None, col=0, **kwargs):
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   297
    """accept sorted result set"""
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   298
    rqlst = rset.syntax_tree()
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   299
    if len(rqlst.children) > 1 or not rqlst.children[0].orderby:
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   300
        return 0
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   301
    return 2
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   302
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@objectify_selector
650
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   304
@lltrace
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def one_etype_rset(cls, req, rset, row=None, col=0, *args, **kwargs):
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   306
    """accept result set where entities in the specified column (or 0) are all
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   307
    of the same type
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   308
    """
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   309
    if len(rset.column_types(col)) != 1:
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   310
        return 0
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   311
    return 1
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   312
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@objectify_selector
650
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   314
@lltrace
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def two_etypes_rset(cls, req, rset, row=None, col=0, **kwargs):
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   316
    """accept result set where entities in the specified column (or 0) are not
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   317
    of the same type
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   318
    """
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   319
    if rset:
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   320
        etypes = rset.column_types(col)
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   321
        if len(etypes) > 1:
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   322
            return 1
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diff changeset
   323
    return 0
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   324
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   325
class non_final_entity(EClassSelector):
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   326
    """accept if entity type found in the result set is non final.
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   327
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diff changeset
   328
    See `EClassSelector` documentation for behaviour when row is not specified.
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   329
    """
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   330
    def score(self, cls, req, etype):
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diff changeset
   331
        if etype in BASE_TYPES:
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diff changeset
   332
            return 0
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   333
        return 1
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   334
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   335
@objectify_selector
650
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   336
@lltrace
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   337
def anonymous_user(cls, req, *args, **kwargs):
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diff changeset
   338
    """accept if user is anonymous"""
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diff changeset
   339
    if req.cnx.anonymous_connection:
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   340
        return 1
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   341
    return 0
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   342
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   343
@objectify_selector
650
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   344
@lltrace
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   345
def authenticated_user(cls, req, *args, **kwargs):
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   346
    """accept if user is authenticated"""
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   347
    return not anonymous_user(cls, req, *args, **kwargs)
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   348
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   349
@objectify_selector
650
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   350
@lltrace
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   351
def primary_view(cls, req, rset, row=None, col=0, view=None, **kwargs):
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   352
    """accept if view given as named argument is a primary view, or if no view
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diff changeset
   353
    is given
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   354
    """
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   355
    if view is not None and not view.is_primary():
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diff changeset
   356
        return 0
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   357
    return 1
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   358
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06807984e610 provide objectify_selector decorator for very simple selectors
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   359
@objectify_selector
650
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   360
@lltrace
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   361
def match_context_prop(cls, req, rset, row=None, col=0, context=None,
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diff changeset
   362
                       **kwargs):
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diff changeset
   363
    """accept if:
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diff changeset
   364
    * no context given
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diff changeset
   365
    * context (`basestring`) is matching the context property value for the
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diff changeset
   366
      given cls
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diff changeset
   367
    """
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diff changeset
   368
    propval = req.property_value('%s.%s.context' % (cls.__registry__, cls.id))
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diff changeset
   369
    if not propval:
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diff changeset
   370
        propval = cls.context
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diff changeset
   371
    if context is not None and propval and context != propval:
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diff changeset
   372
        return 0
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diff changeset
   373
    return 1
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diff changeset
   374
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diff changeset
   375
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   376
class match_search_state(Selector):
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diff changeset
   377
    """accept if the current request search state is in one of the expected
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diff changeset
   378
    states given to the initializer
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diff changeset
   379
    
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diff changeset
   380
    :param expected: either 'normal' or 'linksearch' (eg searching for an
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diff changeset
   381
                     object to create a relation with another)
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diff changeset
   382
    """
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diff changeset
   383
    def __init__(self, *expected):
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diff changeset
   384
        self.expected = expected
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diff changeset
   385
        
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diff changeset
   386
    @lltrace
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diff changeset
   387
    def __call__(self, cls, req, rset, row=None, col=0, **kwargs):
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diff changeset
   388
        try:
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diff changeset
   389
            if not req.search_state[0] in self.expected:
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diff changeset
   390
                return 0
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diff changeset
   391
        except AttributeError:
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diff changeset
   392
            return 1 # class doesn't care about search state, accept it
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diff changeset
   393
        return 1
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diff changeset
   394
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sylvain.thenault@logilab.fr
parents: 649
diff changeset
   395
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   396
class match_form_params(match_search_state):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   397
    """accept if parameters specified as initializer arguments are specified
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   398
    in request's form parameters
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   399
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   400
    :param *expected: parameters (eg `basestring`) which are expected to be
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   401
                      found in request's form parameters
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   402
    """
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   403
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   404
    @lltrace
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   405
    def __call__(self, cls, req, *args, **kwargs):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   406
        score = 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   407
        for param in self.expected:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   408
            val = req.form.get(param)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   409
            if not val:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   410
                return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   411
            score += 1
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   412
        return len(self.expected)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   413
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   414
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   415
class match_kwargs(match_search_state):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   416
    """accept if parameters specified as initializer arguments are specified
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   417
    in named arguments given to the selector
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   418
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   419
    :param *expected: parameters (eg `basestring`) which are expected to be
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   420
                      found in named arguments (kwargs)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   421
    """
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   422
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   423
    @lltrace
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   424
    def __call__(self, cls, req, *args, **kwargs):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   425
        for arg in self.expected:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   426
            if not arg in kwargs:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   427
                return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   428
        return len(self.expected)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   429
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   430
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   431
class match_user_groups(Selector):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   432
    """accept if logged users is in at least one of the given groups. Returned
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   433
    score is the number of groups in which the user is.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   434
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   435
    If the special 'owners' group is given:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   436
    * if row is specified check the entity at the given row/col is owned by the
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   437
      logged user
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   438
    * if row is not specified check all entities in col are owned by the logged
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   439
      user
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   440
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   441
    :param *required_groups: name of groups (`basestring`) in which the logged
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   442
                             user should be
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   443
    """
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   444
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   445
    def __init__(self, *required_groups):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   446
        self.required_groups = required_groups
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   447
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   448
    @lltrace
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   449
    def __call__(self, cls, req, rset=None, row=None, col=0, **kwargs):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   450
        user = req.user
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   451
        if user is None:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   452
            return int('guests' in self.required_groups)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   453
        score = user.matching_groups(self.required_groups)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   454
        if not score and 'owners' in self.required_groups and rset:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   455
            nbowned = 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   456
            if row is not None:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   457
                if not user.owns(rset[row][col]):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   458
                    return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   459
                score = 1
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   460
            else:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   461
                score = all(user.owns(r[col or 0]) for r in rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   462
        return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   463
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   464
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   465
class appobject_selectable(Selector):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   466
    """accept with another appobject is selectable using selector's input
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   467
    context.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   468
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   469
    :param registry: a registry name (`basestring`)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   470
    :param oid: an object identifier (`basestring`)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   471
    """
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   472
    def __init__(self, registry, oid):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   473
        self.registry = registry
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   474
        self.oid = oid
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   475
        
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   476
    def __call__(self, cls, req, rset, *args, **kwargs):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   477
        try:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   478
            cls.vreg.select_object(self.registry, self.oid, req, rset, *args, **kwargs)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   479
            return 1
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   480
        except NoSelectableObject:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   481
            return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   482
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   483
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   484
# not so basic selectors ######################################################
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   485
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   486
class implements(EClassSelector):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   487
    """accept if entity class found in the result set implements at least one
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   488
    of the interfaces given as argument. Returned score is the number of
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   489
    implemented interfaces.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   490
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   491
    See `EClassSelector` documentation for behaviour when row is not specified.
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   492
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   493
    :param *expected_ifaces: expected interfaces. An interface may be a class
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   494
                             or an entity type (e.g. `basestring`) in which case
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   495
                             the associated class will be searched in the
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   496
                             registry (at selection time)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   497
                             
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   498
    note: when interface is an entity class, the score will reflect class
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   499
          proximity so the most specific object'll be selected
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   500
    """
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   501
    def __init__(self, *expected_ifaces):
689
a9d9421d1be0 missing super call
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   502
        super(implements, self).__init__()
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   503
        self.expected_ifaces = expected_ifaces
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   504
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   505
    def score_class(self, eclass, req):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   506
        score = 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   507
        for iface in self.expected_ifaces:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   508
            if isinstance(iface, basestring):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   509
                # entity type
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   510
                iface = eclass.vreg.etype_class(iface)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   511
            if implements_iface(eclass, iface):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   512
                score += 1
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   513
                if getattr(iface, '__registry__', None) == 'etypes':
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   514
                    score += 1
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   515
                    # adjust score if the interface is an entity class
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   516
                    if iface is eclass:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   517
                        score += len(eclass.e_schema.ancestors())
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   518
#                        print 'is majoration', len(eclass.e_schema.ancestors()) 
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   519
                    else:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   520
                        parents = [e.type for e in eclass.e_schema.ancestors()]
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   521
                        for index, etype in enumerate(reversed(parents)):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   522
                            basecls = eclass.vreg.etype_class(etype)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   523
                            if iface is basecls:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   524
                                score += index
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   525
#                                print 'etype majoration', index
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   526
                                break
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   527
        return score
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   528
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   529
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   530
class specified_etype_implements(implements):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   531
    """accept if entity class specified using an 'etype' parameters in name
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   532
    argument or request form implements at least one of the interfaces given as
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   533
    argument. Returned score is the number of implemented interfaces.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   534
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   535
    :param *expected_ifaces: expected interfaces. An interface may be a class
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   536
                             or an entity type (e.g. `basestring`) in which case
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   537
                             the associated class will be searched in the
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   538
                             registry (at selection time)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   539
                             
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   540
    note: when interface is an entity class, the score will reflect class
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   541
          proximity so the most specific object'll be selected
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   542
    """
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   543
    
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   544
    @lltrace
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   545
    def __call__(cls, req, *args, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   546
        try:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   547
            etype = req.form['etype']
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   548
        except KeyError:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   549
            try:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   550
                etype = kwargs['etype']
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   551
            except KeyError:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   552
                return 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   553
        return self.score_class(cls.vreg.etype_class(etype), req)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   554
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   555
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   556
class relation_possible(EClassSelector):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   557
    """accept if entity class found in the result set support the relation.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   558
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   559
    See `EClassSelector` documentation for behaviour when row is not specified.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   560
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   561
    :param rtype: a relation type (`basestring`)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   562
    :param role: the role of the result set entity in the relation. 'subject' or
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   563
                 'object', default to 'subject'.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   564
    :param target_type: if specified, check the relation's end may be of this
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   565
                        target type (`basestring`)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   566
    :param action: a relation schema action (one of 'read', 'add', 'delete')
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   567
                   which must be granted to the logged user, else a 0 score will
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   568
                   be returned
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   569
    """
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   570
    def __init__(self, rtype, role='subject', target_etype=None,
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   571
                 action='read', once_is_enough=False):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   572
        super(relation_possible, self).__init__(once_is_enough)
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   573
        self.rtype = rtype
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   574
        self.role = role
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   575
        self.target_etype = target_etype
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   576
        self.action = action
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   577
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   578
    @lltrace
657
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   579
    def __call__(self, cls, req, *args, **kwargs):
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   580
        rschema = cls.schema.rschema(self.rtype)
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   581
        if not (rschema.has_perm(req, self.action)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   582
                or rschema.has_local_role(self.action)):
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   583
            return 0
657
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   584
        return super(relation_possible, self).__call__(cls, req, *args, **kwargs)
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   585
        
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   586
    def score_class(self, eclass, req):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   587
        eschema = eclass.e_schema
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   588
        try:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   589
            if self.role == 'object':
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   590
                rschema = eschema.object_relation(self.rtype)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   591
            else:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   592
                rschema = eschema.subject_relation(self.rtype)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   593
        except KeyError:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   594
            return 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   595
        if self.target_etype is not None:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   596
            try:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   597
                if self.role == 'object':
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   598
                    return self.target_etype in rschema.objects(eschema)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   599
                else:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   600
                    return self.target_etype in rschema.subjects(eschema)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   601
            except KeyError, ex:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   602
                return 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   603
        return 1
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   604
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   605
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   606
class has_editable_relation(EntitySelector):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   607
    """accept if some relations for an entity found in the result set is
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   608
    editable by the logged user.
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   609
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   610
    See `EntitySelector` documentation for behaviour when row is not specified.
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   611
    """
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   612
        
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   613
    def score_entity(self, entity):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   614
        # if user has no update right but it can modify some relation,
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   615
        # display action anyway
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   616
        for dummy in entity.srelations_by_category(('generic', 'metadata'),
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   617
                                                   'add'):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   618
            return 1
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   619
        for rschema, targetschemas, role in entity.relations_by_category(
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   620
            ('primary', 'secondary'), 'add'):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   621
            if not rschema.is_final():
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   622
                return 1
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   623
        return 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   624
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   625
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   626
class may_add_relation(EntitySelector):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   627
    """accept if the relation can be added to an entity found in the result set
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   628
    by the logged user.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   629
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   630
    See `EntitySelector` documentation for behaviour when row is not specified.
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   631
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   632
    :param rtype: a relation type (`basestring`)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   633
    :param role: the role of the result set entity in the relation. 'subject' or
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   634
                 'object', default to 'subject'.
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   635
    """
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   636
    
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   637
    def __init__(self, rtype, role='subject'):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   638
        self.rtype = rtype
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   639
        self.role = role
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   640
        
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   641
    def score_entity(self, entity):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   642
        rschema = entity.schema.rschema(self.rtype)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   643
        if self.role == 'subject':
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   644
            if not rschema.has_perm(req, 'add', fromeid=entity.eid):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   645
                return 0
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   646
        elif not rschema.has_perm(req, 'add', toeid=entity.eid):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   647
            return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   648
        return 1
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   649
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   651
class has_related_entities(EntitySelector):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   652
    """accept if entity found in the result set has some linked entities using
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   653
    the specified relation (optionaly filtered according to the specified target
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   654
    type).
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   655
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   656
    See `EntitySelector` documentation for behaviour when row is not specified.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   657
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   658
    :param rtype: a relation type (`basestring`)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   659
    :param role: the role of the result set entity in the relation. 'subject' or
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   660
                 'object', default to 'subject'.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   661
    :param target_type: if specified, check the relation's end may be of this
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   662
                        target type (`basestring`)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   663
    """
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   664
    def __init__(self, rtype, role='subject', target_etype=None,
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   665
                 once_is_enough=False):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   666
        self.rtype = rtype
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   667
        self.role = role
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   668
        self.target_etype = target_etype
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   669
        self.once_is_enough = once_is_enough
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   670
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   671
    def score_entity(self, entity):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   672
        rset = entity.related(self.rtype, self.role)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   673
        if self.target_etype:
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   674
            return any(x for x, in rset.description if x == self.target_etype)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   675
        return bool(rset)
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   676
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   677
        
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   678
class has_permission(EntitySelector):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   679
    """accept if user has the permission to do the requested action on a result
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   680
    set entity.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   681
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   682
    * if row is specified, return 1 if user has the permission on the entity
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   683
      instance found in the specified cell
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   684
    * else return a positive score if user has the permission for every entity
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   685
      in the found in the specified column
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   686
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   687
    note: None values (resulting from some outer join in the query) are not
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   688
          considered.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   689
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   690
    :param action: an entity schema action (eg 'read'/'add'/'delete'/'update')
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   691
    """
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   692
    def __init__(self, action):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   693
        self.action = action
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   694
        
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   695
    @lltrace
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   696
    def __call__(self, cls, req, rset, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   697
        user = req.user
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   698
        action = self.action
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   699
        if row is None:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   700
            score = 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   701
            need_local_check = [] 
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   702
            geteschema = cls.schema.eschema
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   703
            for etype in rset.column_types(0):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   704
                if etype in BASE_TYPES:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   705
                    return 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   706
                eschema = geteschema(etype)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   707
                if not user.matching_groups(eschema.get_groups(action)):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   708
                    if eschema.has_local_role(action):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   709
                        # have to ckeck local roles
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   710
                        need_local_check.append(eschema)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   711
                        continue
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   712
                    else:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   713
                        # even a local role won't be enough
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   714
                        return 0
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   715
                score += 1
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   716
            if need_local_check:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   717
                # check local role for entities of necessary types
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   718
                for i, row in enumerate(rset):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   719
                    if not rset.description[i][0] in need_local_check:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   720
                        continue
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   721
                    if not self.score(req, rset, i, col):
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   722
                        return 0
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   723
                score += 1
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   724
            return score
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   725
        return self.score(req, rset, i, col)
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   726
    
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   727
    def score_entity(self, entity):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   728
        if entity.has_perm(self.action):
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   729
            return 1
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   730
        return 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   731
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   732
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   733
class has_add_permission(EClassSelector):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   734
    """accept if logged user has the add permission on entity class found in the
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   735
    result set, and class is not a strict subobject.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   736
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   737
    See `EClassSelector` documentation for behaviour when row is not specified.
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   738
    """
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   739
    def score(self, cls, req, etype):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   740
        eschema = cls.schema.eschema(etype)
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   741
        if not (eschema.is_final() or eschema.is_subobject(strict=True)) \
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   742
               and eschema.has_perm(req, 'add'):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   743
            return 1
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   744
        return 0
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   745
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   746
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   747
class rql_condition(EntitySelector):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   748
    """accept if an arbitrary rql return some results for an eid found in the
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   749
    result set. Returned score is the number of items returned by the rql
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   750
    condition.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   751
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   752
    See `EntitySelector` documentation for behaviour when row is not specified.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   753
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   754
    :param expression: basestring containing an rql expression, which should use
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   755
                       X variable to represent the context entity and may use U
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   756
                       to represent the logged user
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   757
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   758
    return the sum of the number of items returned by the rql condition as score
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   759
    or 0 at the first entity scoring to zero.
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   760
    """
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   761
    def __init__(self, expression):
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   762
        if 'U' in frozenset(split_expression(expression)):
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   763
            rql = 'Any X WHERE X eid %%(x)s, U eid %%(u)s, %s' % expression
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   764
        else:
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   765
            rql = 'Any X WHERE X eid %%(x)s, %s' % expression
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   766
        self.rql = rql
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   767
        
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   768
    def score(self, req, rset, row, col):
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   769
        try:
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   770
            return len(req.execute(self.rql, {'x': eid, 'u': req.user.eid}, 'x'))
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   771
        except Unauthorized:
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   772
            return 0
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   773
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   774
        
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   775
class but_etype(EntitySelector):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   776
    """accept if the given entity types are not found in the result set.
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   777
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   778
    See `EntitySelector` documentation for behaviour when row is not specified.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   779
    
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   780
    :param *etypes: entity types (`basestring`) which should be refused
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   781
    """
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   782
    def __init__(self, *etypes):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   783
        self.but_etypes = etypes
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   784
        
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   785
    def score(self, req, rset, row, col):
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   786
        if rset.description[row][col] in self.but_etypes:
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   787
            return 0
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   788
        return 1
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   789
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   790
                
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   791
class score_entity(EntitySelector):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   792
    """accept if some arbitrary function return a positive score for an entity
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   793
    found in the result set.
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   794
    
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   795
    See `EntitySelector` documentation for behaviour when row is not specified.
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   796
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   797
    :param scorefunc: callable expected to take an entity as argument and to
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   798
                      return a score >= 0 
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   799
    """
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   800
    def __init__(self, scorefunc):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   801
        self.score_entity = scorefunc
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   802
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   803
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   804
# XXX DEPRECATED ##############################################################
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   805
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   806
yes_selector = deprecated_function(yes)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   807
norset_selector = deprecated_function(none_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   808
rset_selector = deprecated_function(any_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   809
anyrset_selector = deprecated_function(nonempty_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   810
emptyrset_selector = deprecated_function(empty_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   811
onelinerset_selector = deprecated_function(one_line_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   812
twolinerset_selector = deprecated_function(two_lines_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   813
twocolrset_selector = deprecated_function(two_cols_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   814
largerset_selector = deprecated_function(paginated_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   815
sortedrset_selector = deprecated_function(sorted_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   816
oneetyperset_selector = deprecated_function(one_etype_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   817
multitype_selector = deprecated_function(two_etypes_rset)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   818
anonymous_selector = deprecated_function(anonymous_user)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   819
not_anonymous_selector = deprecated_function(authenticated_user)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   820
primaryview_selector = deprecated_function(primary_view)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   821
contextprop_selector = deprecated_function(match_context_prop)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   822
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   823
def nfentity_selector(cls, req, rset, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   824
    return non_final_entity()(cls, req, rset, row, col)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   825
nfentity_selector = deprecated_function(nfentity_selector)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   826
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   827
def implement_interface(cls, req, rset, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   828
    return implements(*cls.accepts_interfaces)(cls, req, rset, row, col)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   829
_interface_selector = deprecated_function(implement_interface)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   830
interface_selector = deprecated_function(implement_interface)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   831
implement_interface = deprecated_function(implement_interface, 'use implements')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   832
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   833
def accept_etype(cls, req, *args, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   834
    """check etype presence in request form *and* accepts conformance"""
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   835
    return specified_etype_implements(*cls.accepts)(cls, req, *args)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   836
etype_form_selector = deprecated_function(accept_etype)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   837
accept_etype = deprecated_function(accept_etype, 'use specified_etype_implements')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   838
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   839
def searchstate_selector(cls, req, rset, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   840
    return match_search_state(cls.search_states)(cls, req, rset, row, col)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   841
searchstate_selector = deprecated_function(searchstate_selector)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   842
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   843
def match_user_group(cls, req, rset=None, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   844
    return match_user_groups(*cls.require_groups)(cls, req, rset, row, col, **kwargs)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   845
in_group_selector = deprecated_function(match_user_group)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   846
match_user_group = deprecated_function(match_user_group)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   847
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   848
def has_relation(cls, req, rset, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   849
    return relation_possible(cls.rtype, role(cls), cls.etype,
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   850
                             getattr(cls, 'require_permission', 'read'))(cls, req, rset, row, col, **kwargs)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   851
has_relation = deprecated_function(has_relation)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   852
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   853
def one_has_relation(cls, req, rset, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   854
    return relation_possible(cls.rtype, role(cls), cls.etype,
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   855
                             getattr(cls, 'require_permission', 'read',
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   856
                                     once_is_enough=True))(cls, req, rset, row, col, **kwargs)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   857
one_has_relation = deprecated_function(one_has_relation, 'use relation_possible selector')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   858
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   859
def accept_rset(cls, req, rset, row=None, col=0, **kwargs):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   860
    """simply delegate to cls.accept_rset method"""
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   861
    return implements(*cls.accepts)(cls, req, rset, row=row, col=col)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   862
accept_rset_selector = deprecated_function(accept_rset)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   863
accept_rset = deprecated_function(accept_rset, 'use implements selector')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   864
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   865
accept = chainall(non_final_entity(), accept_rset, name='accept')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   866
accept_selector = deprecated_function(accept)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   867
accept = deprecated_function(accept, 'use implements selector')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   868
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   869
accept_one = deprecated_function(chainall(one_line_rset, accept,
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   870
                                          name='accept_one'))
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   871
accept_one_selector = deprecated_function(accept_one)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   872
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   873
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   874
def _rql_condition(cls, req, rset, row=None, col=0, **kwargs):
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   875
    if cls.condition:
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   876
        return rql_condition(cls.condition)(cls, req, rset, row, col)
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   877
    return 1
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   878
_rqlcondition_selector = deprecated_function(_rql_condition)
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   879
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   880
rqlcondition_selector = deprecated_function(chainall(non_final_entity(), one_line_rset, _rql_condition,
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   881
                         name='rql_condition'))
649
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   882
    
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   883
def but_etype_selector(cls, req, rset, row=None, col=0, **kwargs):
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   884
    return but_etype(cls.etype)(cls, req, rset, row, col)
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   885
but_etype_selector = deprecated_function(but_etype_selector)
e5956e9ebef1 more doc, upgrade but_etype and appobject_selectable selectors
sylvain.thenault@logilab.fr
parents: 640
diff changeset
   886
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   887
@lltrace
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   888
def etype_rtype_selector(cls, req, rset, row=None, col=0, **kwargs):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   889
    """only check if the user has read access on the entity's type refered
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   890
    by the .etype attribute and on the relations's type refered by the
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   891
    .rtype attribute if set.
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   892
    """
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   893
    schema = cls.schema
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   894
    perm = getattr(cls, 'require_permission', 'read')
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   895
    if hasattr(cls, 'etype'):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   896
        eschema = schema.eschema(cls.etype)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   897
        if not (eschema.has_perm(req, perm) or eschema.has_local_role(perm)):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   898
            return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   899
    if hasattr(cls, 'rtype'):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   900
        rschema = schema.rschema(cls.rtype)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   901
        if not (rschema.has_perm(req, perm) or rschema.has_local_role(perm)):
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   902
            return 0
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   903
    return 1
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   904
etype_rtype_selector = deprecated_function(etype_rtype_selector)
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   905
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   906
#req_form_params_selector = deprecated_function(match_form_params) # form_params
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   907
#kwargs_selector = deprecated_function(match_kwargs) # expected_kwargs
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   908
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   909
# compound selectors ##########################################################
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   910
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   911
searchstate_accept = chainall(nonempty_rset, match_search_state, accept,
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   912
                              name='searchstate_accept')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   913
searchstate_accept_selector = deprecated_function(searchstate_accept)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   914
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   915
searchstate_accept_one = chainall(one_line_rset, match_search_state,
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   916
                                  accept, _rql_condition,
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   917
                                  name='searchstate_accept_one')
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   918
searchstate_accept_one_selector = deprecated_function(searchstate_accept_one)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   919
650
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   920
searchstate_accept = deprecated_function(searchstate_accept)
75b4c661f71b proper documentation, some bug fixes, upgrade some selectors
sylvain.thenault@logilab.fr
parents: 649
diff changeset
   921
searchstate_accept_one = deprecated_function(searchstate_accept_one)
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   922
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   923
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   924
def unbind_method(selector):
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   925
    def new_selector(registered):
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   926
        # get the unbound method
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   927
        if hasattr(registered, 'im_func'):
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   928
            registered = registered.im_func
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   929
        # don't rebind since it will be done automatically during
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   930
        # the assignment, inside the destination class body
657
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   931
        return selector(registered)
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   932
    new_selector.__name__ = selector.__name__
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   933
    return new_selector
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   934
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   935
657
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   936
def deprecate(registered, msg):
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   937
    # get the unbound method
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   938
    if hasattr(registered, 'im_func'):
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   939
        registered = registered.im_func
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   940
    def _deprecate(cls, vreg):
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   941
        warn(msg, DeprecationWarning)
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   942
        return registered(cls, vreg)
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   943
    return _deprecate
fd019f41aa2f work in progress - fix deprecation of EntityAction - fix various selectors bugs
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 656
diff changeset
   944
    
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   945
@unbind_method
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   946
def require_group_compat(registered):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   947
    def plug_selector(cls, vreg):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   948
        cls = registered(cls, vreg)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   949
        if getattr(cls, 'require_groups', None):
654
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   950
            warn('use "match_user_groups(group1, group2)" instead of using require_groups',
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   951
                 DeprecationWarning)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   952
            cls.__selectors__ += (match_user_groups(cls.require_groups),)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   953
        return cls
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   954
    return plug_selector
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   955
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   956
@unbind_method
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   957
def accepts_compat(registered):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   958
    def plug_selector(cls, vreg):
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   959
        cls = registered(cls, vreg)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   960
        if getattr(cls, 'accepts', None):
654
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   961
            warn('use "match_user_groups(group1, group2)" instead of using require_groups',
634
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   962
                 DeprecationWarning)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   963
            cls.__selectors__ += (implements(*cls.accepts),)
0badd061ce0f move cubicweb.common.selectors to cubicweb.selectors
sylvain.thenault@logilab.fr
parents:
diff changeset
   964
        return cls
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   965
    return plug_selector
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   966
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   967
@unbind_method
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   968
def condition_compat(registered):
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   969
    def plug_selector(cls, vreg):
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   970
        cls = registered(cls, vreg)
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   971
        if getattr(cls, 'condition', None):
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   972
            warn('use "use rql_condition(expression)" instead of using condition',
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   973
                 DeprecationWarning)
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   974
            cls.__selectors__ += (rql_condition(cls.condition),)
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 634
diff changeset
   975
        return cls
652
603c782dc092 various SyntaxErrors / missing import fixes + reorganization of the `registered` classmethod
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 650
diff changeset
   976
    return plug_selector
654
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   977
     
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   978
@unbind_method
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   979
def has_relation_compat(registered):
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   980
    def plug_selector(cls, vreg):
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   981
        cls = registered(cls, vreg)
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   982
        if getattr(cls, 'type', None):
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   983
            warn('use relation_possible selector instead of using etype_rtype',
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   984
                 DeprecationWarning)
656
sylvain.thenault@logilab.fr
parents: 654
diff changeset
   985
            cls.__selectors__ += (relation_possible(cls.rtype, role(cls),
sylvain.thenault@logilab.fr
parents: 654
diff changeset
   986
                                                    getattr(cls, 'etype', None),
sylvain.thenault@logilab.fr
parents: 654
diff changeset
   987
                                                    action=getattr(cls, 'require_permission', 'read')))
654
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   988
        return cls
36e87179e91d has_relation selector compat, fix some deprecation msg
sylvain.thenault@logilab.fr
parents: 652
diff changeset
   989
    return plug_selector