view.py
author Samuel Trégouët <samuel.tregouet@logilab.fr>
Tue, 01 Dec 2015 13:38:21 +0100
changeset 10941 e3ec46b5c710
parent 10669 155c29e0ed1c
permissions -rw-r--r--
[dataimport] add missing import 'eschema_eid'
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# copyright 2003-2012 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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# This file is part of CubicWeb.
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#
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# CubicWeb is free software: you can redistribute it and/or modify it under the
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# terms of the GNU Lesser General Public License as published by the Free
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# Software Foundation, either version 2.1 of the License, or (at your option)
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# any later version.
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#
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# CubicWeb is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License along
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# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.
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"""abstract views and templates classes for CubicWeb web client"""
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__docformat__ = "restructuredtext en"
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from cubicweb import _
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from io import BytesIO
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from warnings import warn
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from functools import partial
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from six.moves import range
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from logilab.common.deprecation import deprecated
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from logilab.common.registry import yes
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from logilab.mtconverter import xml_escape
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from rql import nodes
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from cubicweb import NotAnEntity
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from cubicweb.predicates import non_final_entity, nonempty_rset, none_rset
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from cubicweb.appobject import AppObject
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from cubicweb.utils import UStringIO, HTMLStream
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from cubicweb.uilib import domid, js
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from cubicweb.schema import display_name
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# robots control
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NOINDEX = u'<meta name="ROBOTS" content="NOINDEX" />'
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NOFOLLOW = u'<meta name="ROBOTS" content="NOFOLLOW" />'
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TRANSITIONAL_DOCTYPE_NOEXT = u'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\n'
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TRANSITIONAL_DOCTYPE = TRANSITIONAL_DOCTYPE_NOEXT # bw compat
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STRICT_DOCTYPE_NOEXT = u'<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">\n'
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STRICT_DOCTYPE = STRICT_DOCTYPE_NOEXT # bw compat
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# base view object ############################################################
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class View(AppObject):
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    """This class is an abstraction of a view class, used as a base class for
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    every renderable object such as views, templates and other user interface
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    components.
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    A `View` is instantiated to render a result set or part of a result
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    set. `View` subclasses may be parametrized using the following class
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    attributes:
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    :py:attr:`templatable` indicates if the view may be embedded in a main
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      template or if it has to be rendered standalone (i.e. pure XML views must
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      not be embedded in the main template of HTML pages)
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    :py:attr:`content_type` if the view is not templatable, it should set the
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      `content_type` class attribute to the correct MIME type (text/xhtml being
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      the default)
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    :py:attr:`category` this attribute may be used in the interface to regroup
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      related objects (view kinds) together
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    :py:attr:`paginable`
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    :py:attr:`binary`
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    A view writes to its output stream thanks to its attribute `w` (the
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    append method of an `UStreamIO`, except for binary views).
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    At instantiation time, the standard `_cw`, and `cw_rset` attributes are
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    added and the `w` attribute will be set at rendering time to a write
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    function to use.
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    """
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    __registry__ = 'views'
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    templatable = True
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    # content_type = 'application/xhtml+xml' # text/xhtml'
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    binary = False
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    add_to_breadcrumbs = True
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    category = 'view'
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    paginable = True
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    def __init__(self, req=None, rset=None, **kwargs):
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        super(View, self).__init__(req, rset=rset, **kwargs)
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        self.w = None
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    @property
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    def content_type(self):
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        return self._cw.html_content_type()
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    def set_stream(self, w=None):
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        if self.w is not None:
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            return
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        if w is None:
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            if self.binary:
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                self._stream = stream = BytesIO()
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            else:
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                self._stream = stream = UStringIO()
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            w = stream.write
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        else:
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            stream = None
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        self.w = w
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        return stream
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    # main view interface #####################################################
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    def render(self, w=None, **context):
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        """called to render a view object for a result set.
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        This method is a dispatched to an actual method selected
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        according to optional row and col parameters, which are locating
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        a particular row or cell in the result set:
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        * if row is specified, `cell_call` is called
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        * if none of them is supplied, the view is considered to apply on
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          the whole result set (which may be None in this case), `call` is
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          called
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        """
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        # XXX use .cw_row/.cw_col
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        row = context.get('row')
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        if row is not None:
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            context.setdefault('col', 0)
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            view_func = self.cell_call
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        else:
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            view_func = self.call
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        stream = self.set_stream(w)
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        try:
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            view_func(**context)
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        except Exception:
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            self.debug('view call %s failed (context=%s)', view_func, context)
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            raise
0
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        # return stream content if we have created it
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        if stream is not None:
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            return self._stream.getvalue()
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    def tal_render(self, template, variables):
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        """render a precompiled page template with variables in the given
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        dictionary as context
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        """
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        from cubicweb.ext.tal import CubicWebContext
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        context = CubicWebContext()
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        context.update({'self': self, 'rset': self.cw_rset, '_' : self._cw._,
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                        'req': self._cw, 'user': self._cw.user})
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        context.update(variables)
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        output = UStringIO()
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        template.expand(context, output)
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        return output.getvalue()
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0
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    # should default .call() method add a <div classs="section"> around each
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    # rset item
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    add_div_section = True
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0
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    def call(self, **kwargs):
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        """the view is called for an entire result set, by default loop
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        other rows of the result set and call the same view on the
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        particular row
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        Views applicable on None result sets have to override this method
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        """
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        rset = self.cw_rset
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        if rset is None:
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            raise NotImplementedError("%r an rset is required" % self)
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        wrap = self.templatable and len(rset) > 1 and self.add_div_section
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        # avoid re-selection if rset of size 1, we already have the most
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        # specific view
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        if rset.rowcount != 1:
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            kwargs.setdefault('initargs', self.cw_extra_kwargs)
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            for i in range(len(rset)):
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                if wrap:
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                    self.w(u'<div class="section">')
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                self.wview(self.__regid__, rset, row=i, **kwargs)
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                if wrap:
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                    self.w(u"</div>")
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        else:
0
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            if wrap:
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                self.w(u'<div class="section">')
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            kwargs.setdefault('col', 0)
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            self.cell_call(row=0, **kwargs)
0
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            if wrap:
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                self.w(u"</div>")
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    def cell_call(self, row, col, **kwargs):
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        """the view is called for a particular result set cell"""
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        raise NotImplementedError(repr(self))
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0
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    def linkable(self):
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        """return True if the view may be linked in a menu
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0
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        by default views without title are not meant to be displayed
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        """
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        if not getattr(self, 'title', None):
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            return False
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        return True
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    def is_primary(self):
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        return self.cw_extra_kwargs.get('is_primary', self.__regid__ == 'primary')
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0
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    def url(self):
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        """return the url associated with this view. Should not be
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        necessary for non linkable views, but a default implementation
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        is provided anyway.
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        """
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        rset = self.cw_rset
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        if rset is None:
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            return self._cw.build_url('view', vid=self.__regid__)
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        coltypes = rset.column_types(0)
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        if len(coltypes) == 1:
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            etype = next(iter(coltypes))
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            if not self._cw.vreg.schema.eschema(etype).final:
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                if len(rset) == 1:
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                    entity = rset.get_entity(0, 0)
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                    return entity.absolute_url(vid=self.__regid__)
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            # don't want to generate /<etype> url if there is some restriction
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            # on something else than the entity type
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            restr = rset.syntax_tree().children[0].where
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            # XXX norestriction is not correct here. For instance, in cases like
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            # "Any P,N WHERE P is Project, P name N" norestriction should equal
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            # True
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            norestriction = (isinstance(restr, nodes.Relation) and
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                             restr.is_types_restriction())
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   231
            if norestriction:
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                return self._cw.build_url(etype.lower(), vid=self.__regid__)
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        return self._cw.build_url('view', rql=rset.printable_rql(), vid=self.__regid__)
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    def set_request_content_type(self):
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        """set the content type returned by this view"""
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        self._cw.set_content_type(self.content_type)
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    # view utilities ##########################################################
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    def wview(self, __vid, rset=None, __fallback_vid=None, **kwargs):
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        """shortcut to self.view method automatically passing self.w as argument
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        """
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        self._cw.view(__vid, rset, __fallback_vid, w=self.w, **kwargs)
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0
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    def whead(self, data):
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        self._cw.html_headers.write(data)
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    def wdata(self, data):
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        """simple helper that escapes `data` and writes into `self.w`"""
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        self.w(xml_escape(data))
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    def html_headers(self):
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        """return a list of html headers (eg something to be inserted between
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        <head> and </head> of the returned page
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        by default return a meta tag to disable robot indexation of the page
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        """
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        return [NOINDEX]
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0
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    def page_title(self):
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        """returns a title according to the result set - used for the
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        title in the HTML header
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        """
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        vtitle = self._cw.form.get('vtitle')
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        if vtitle:
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            return self._cw._(vtitle)
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        # class defined title will only be used if the resulting title doesn't
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        # seem clear enough
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        vtitle = getattr(self, 'title', None) or u''
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        if vtitle:
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            vtitle = self._cw._(vtitle)
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        rset = self.cw_rset
0
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        if rset and rset.rowcount:
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            if rset.rowcount == 1:
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                try:
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                    entity = rset.complete_entity(0, 0)
0
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                    # use long_title to get context information if any
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                    clabel = entity.dc_long_title()
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                except NotAnEntity:
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                    clabel = display_name(self._cw, rset.description[0][0])
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                    clabel = u'%s (%s)' % (clabel, vtitle)
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            else :
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                etypes = rset.column_types(0)
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                if len(etypes) == 1:
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                    etype = next(iter(etypes))
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                    clabel = display_name(self._cw, etype, 'plural')
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                else :
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                    clabel = u'#[*] (%s)' % vtitle
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        else:
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            clabel = vtitle
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        return u'%s (%s)' % (clabel, self._cw.property_value('ui.site-title'))
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    def field(self, label, value, row=True, show_label=True, w=None, tr=True,
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              table=False):
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        """read-only field"""
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        if w is None:
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            w = self.w
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        if table:
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            w(u'<tr class="entityfield">')
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        else:
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            w(u'<div class="entityfield">')
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        if show_label and label:
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            if tr:
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                label = display_name(self._cw, label)
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            if table:
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                w(u'<th>%s</th>' % label)
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            else:
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                w(u'<span class="label">%s</span> ' % label)
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        if table:
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            if not (show_label and label):
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                w(u'<td colspan="2">%s</td></tr>' % value)
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            else:
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                w(u'<td>%s</td></tr>' % value)
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        else:
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            w(u'<span>%s</span></div>' % value)
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# concrete views base classes #################################################
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class EntityView(View):
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    """base class for views applying on an entity (i.e. uniform result set)"""
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    __select__ = non_final_entity()
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    category = _('entityview')
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    def call(self, **kwargs):
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        if self.cw_rset is None:
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            # * cw_extra_kwargs is the place where extra selection arguments are
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            #   stored
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            # * when calling req.view('somevid', entity=entity), 'entity' ends
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            #   up in cw_extra_kwargs and kwargs
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            #
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            # handle that to avoid a TypeError with a sanity check
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            #
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            # Notice that could probably be avoided by handling entity_call in
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            # .render
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            entity = self.cw_extra_kwargs.pop('entity')
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            if 'entity' in kwargs:
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                assert kwargs.pop('entity') is entity
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            self.entity_call(entity, **kwargs)
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        else:
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            super(EntityView, self).call(**kwargs)
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    def cell_call(self, row, col, **kwargs):
2c3e83817a8e [view] add a new entity_call method to entity view protocol, allowing some to work with not yet created entities. Also, start considering 'eid' form parameters where we only consider 'rql', so we can move on bloquing arbitrary rql inputs (more to do on this...)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5679
diff changeset
   346
        self.entity_call(self.cw_rset.get_entity(row, col), **kwargs)
2c3e83817a8e [view] add a new entity_call method to entity view protocol, allowing some to work with not yet created entities. Also, start considering 'eid' form parameters where we only consider 'rql', so we can move on bloquing arbitrary rql inputs (more to do on this...)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5679
diff changeset
   347
2c3e83817a8e [view] add a new entity_call method to entity view protocol, allowing some to work with not yet created entities. Also, start considering 'eid' form parameters where we only consider 'rql', so we can move on bloquing arbitrary rql inputs (more to do on this...)
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5679
diff changeset
   348
    def entity_call(self, entity, **kwargs):
8204
332596be995e [view] fix error messages of NotImplementedError
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8174
diff changeset
   349
        raise NotImplementedError('%r %r' % (self.__regid__, self.__class__))
640
8e64f12be69c drop EntityAction usage in cw, upgrade rql_condition and friends
sylvain.thenault@logilab.fr
parents: 635
diff changeset
   350
6926
2cda8f1b4fae cleanups
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6922
diff changeset
   351
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   352
class StartupView(View):
843
5676811ef760 cleanup
sylvain.thenault@logilab.fr
parents: 822
diff changeset
   353
    """base class for views which doesn't need a particular result set to be
9492
c7fc56eecd1a English typography
Dimitri Papadopoulos <dimitri.papadopoulos@cea.fr>
parents: 9256
diff changeset
   354
    displayed (so they can always be displayed!)
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   355
    """
707
21a59b468f1a __selectors__ -> __select__
sylvain.thenault@logilab.fr
parents: 700
diff changeset
   356
    __select__ = none_rset()
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   357
7670
6397a9051f65 [boxes] closes #1832844: translate views category in possible views boxes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7346
diff changeset
   358
    category = _('startupview')
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   359
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   360
    def html_headers(self):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   361
        """return a list of html headers (eg something to be inserted between
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   362
        <head> and </head> of the returned page
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   363
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   364
        by default startup views are indexed
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   365
        """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   366
        return []
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   367
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   368
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   369
class EntityStartupView(EntityView):
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   370
    """base class for entity views which may also be applied to None
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   371
    result set (usually a default rql is provided by the view class)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   372
    """
781
323656dd85a9 fix import, use non_final_entity instead of implements('Any')
sylvain.thenault@logilab.fr
parents: 757
diff changeset
   373
    __select__ = none_rset() | non_final_entity()
543
c0f2b6378f70 simplification of lazy tabs mechanism
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 522
diff changeset
   374
0
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   375
    default_rql = None
543
c0f2b6378f70 simplification of lazy tabs mechanism
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 522
diff changeset
   376
2418
8f06e4f02733 optional rset
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2312
diff changeset
   377
    def __init__(self, req, rset=None, **kwargs):
2890
fdcb8a2bb6eb fix __init__ parameters
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2822
diff changeset
   378
        super(EntityStartupView, self).__init__(req, rset=rset, **kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   379
        if rset is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   380
            # this instance is not in the "entityview" category
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   381
            self.category = 'startupview'
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Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   382
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   383
    def startup_rql(self):
873
3d9df99b0bfa cleanup
sylvain.thenault@logilab.fr
parents: 843
diff changeset
   384
        """return some rql to be executed if the result set is None"""
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
        return self.default_rql
543
c0f2b6378f70 simplification of lazy tabs mechanism
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 522
diff changeset
   386
8174
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   387
    def no_entities(self, **kwargs):
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   388
        """override to display something when no entities were found"""
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   389
        pass
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   390
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   391
    def call(self, **kwargs):
873
3d9df99b0bfa cleanup
sylvain.thenault@logilab.fr
parents: 843
diff changeset
   392
        """override call to execute rql returned by the .startup_rql method if
3d9df99b0bfa cleanup
sylvain.thenault@logilab.fr
parents: 843
diff changeset
   393
        necessary
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   394
        """
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3369
diff changeset
   395
        rset = self.cw_rset
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3369
diff changeset
   396
        if rset is None:
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3369
diff changeset
   397
            rset = self.cw_rset = self._cw.execute(self.startup_rql())
8174
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   398
        if rset:
10609
e2d8e81bfe68 [py3k] import range using six.moves
Rémi Cardona <remi.cardona@logilab.fr>
parents: 10211
diff changeset
   399
            for i in range(len(rset)):
8174
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   400
                self.wview(self.__regid__, rset, row=i, **kwargs)
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   401
        else:
b3e87e6865ef [base views] make it easier to override EntityStartupView behaviour when the rset is empty; closes #2126364
Florent Cayré <florent.cayre@gmail.com>
parents: 8013
diff changeset
   402
            self.no_entities(**kwargs)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   403
543
c0f2b6378f70 simplification of lazy tabs mechanism
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 522
diff changeset
   404
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   405
class AnyRsetView(View):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   406
    """base class for views applying on any non empty result sets"""
707
21a59b468f1a __selectors__ -> __select__
sylvain.thenault@logilab.fr
parents: 700
diff changeset
   407
    __select__ = nonempty_rset()
543
c0f2b6378f70 simplification of lazy tabs mechanism
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 522
diff changeset
   408
7670
6397a9051f65 [boxes] closes #1832844: translate views category in possible views boxes
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7346
diff changeset
   409
    category = _('anyrsetview')
543
c0f2b6378f70 simplification of lazy tabs mechanism
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 522
diff changeset
   410
2203
efdd3a9f9028 update to new rql get_description api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1999
diff changeset
   411
    def columns_labels(self, mainindex=0, tr=True):
7938
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   412
        """compute the label of the rset colums
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   413
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   414
        The logic is based on :meth:`~rql.stmts.Union.get_description`.
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   415
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   416
        :param mainindex: The index of the main variable. This is an hint to get
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   417
                          more accurate label for various situation
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   418
        :type mainindex:  int
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   419
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   420
        :param tr: Should the label be translated ?
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   421
        :type tr: boolean
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   422
        """
370
7e76f651314b fix rset xml view
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 369
diff changeset
   423
        if tr:
7938
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   424
            translate = partial(display_name, self._cw)
370
7e76f651314b fix rset xml view
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 369
diff changeset
   425
        else:
8011
23552e79316f [column labels] full display_name prototype compat
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7959
diff changeset
   426
            translate = lambda val, *args,**kwargs: val
2203
efdd3a9f9028 update to new rql get_description api
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 1999
diff changeset
   427
        # XXX [0] because of missing Union support
7938
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   428
        rql_syntax_tree = self.cw_rset.syntax_tree()
7959
32349eb5d89d [table view] fix bug introduced in 7938:80c6e2155c3d leading to not translated table headers
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7938
diff changeset
   429
        rqlstdescr = rql_syntax_tree.get_description(mainindex, translate)[0]
369
c8a6edc224bb new rsetxml view, reusing most code from csvexport view
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 361
diff changeset
   430
        labels = []
7346
c6d8c3ce4a3e [view] ability to define a column header through custom label_column_<colindex> method, useful for table view to customize a specific column without specifying others
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6931
diff changeset
   431
        for colidx, label in enumerate(rqlstdescr):
7938
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   432
            labels.append(self.column_label(colidx, label, translate))
369
c8a6edc224bb new rsetxml view, reusing most code from csvexport view
Sylvain Thenault <sylvain.thenault@logilab.fr>
parents: 361
diff changeset
   433
        return labels
543
c0f2b6378f70 simplification of lazy tabs mechanism
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 522
diff changeset
   434
7938
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   435
    def column_label(self, colidx, default, translate_func=None):
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   436
        """return the label of a specified columns index
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   437
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   438
        Overwrite me if you need to compute specific label.
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   439
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   440
        :param colidx: The index of the column the call computes a label for.
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   441
        :type colidx:  int
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   442
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   443
        :param default: Default value. If ``"Any"`` the default value will be
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   444
                        recomputed as coma separated list for all possible
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   445
                        etypes name.
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   446
        :type colidx:  string
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   447
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   448
        :param translate_func: A function used to translate name.
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   449
        :type colidx:  function
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   450
        """
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   451
        label = default
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   452
        if label == 'Any':
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   453
            etypes = self.cw_rset.column_types(colidx)
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   454
            if translate_func is not None:
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   455
                etypes = map(translate_func, etypes)
7959
32349eb5d89d [table view] fix bug introduced in 7938:80c6e2155c3d leading to not translated table headers
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 7938
diff changeset
   456
            label = u','.join(etypes)
7938
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   457
        return label
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   458
80c6e2155c3d AnyRsetView: Refactor the columns_name method and update doc.
Pierre-Yves David <pierre-yves.david@logilab.fr>
parents: 7833
diff changeset
   459
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   460
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   461
# concrete template base classes ##############################################
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   462
816
9cd49a910fce kill Template class and 'templates' registry
sylvain.thenault@logilab.fr
parents: 781
diff changeset
   463
class MainTemplate(View):
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   464
    """main template are primary access point to render a full HTML page.
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   465
    There is usually at least a regular main template and a simple fallback
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   466
    one to display error if the first one failed
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   467
    """
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   468
8976
aeb7d400ee92 [view] return HTML5 doctype. Closes #2869426
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 8941
diff changeset
   469
    doctype = '<!DOCTYPE html>'
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   470
1424
0a440312913b set_stream simplification
sylvain.thenault@logilab.fr
parents: 1421
diff changeset
   471
    def set_stream(self, w=None):
0a440312913b set_stream simplification
sylvain.thenault@logilab.fr
parents: 1421
diff changeset
   472
        if self.w is not None:
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   473
            return
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   474
        if w is None:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   475
            if self.binary:
10211
59a77e8847bc [view] Use io.BytesIO as stream for binary views
Rémi Cardona <remi.cardona@free.fr>
parents: 10068
diff changeset
   476
                self._stream = stream = BytesIO()
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   477
            else:
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3369
diff changeset
   478
                self._stream = stream = HTMLStream(self._cw)
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   479
            w = stream.write
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   480
        else:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   481
            stream = None
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   482
        self.w = w
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   483
        return stream
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   484
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   485
    def write_doctype(self, xmldecl=True):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   486
        assert isinstance(self._stream, HTMLStream)
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   487
        self._stream.doctype = self.doctype
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   488
        if not xmldecl:
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   489
            self._stream.xmldecl = u''
661
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   490
822
e3d8db01f3f5 test_views fixes
sylvain.thenault@logilab.fr
parents: 819
diff changeset
   491
    def linkable(self):
e3d8db01f3f5 test_views fixes
sylvain.thenault@logilab.fr
parents: 819
diff changeset
   492
        return False
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   493
661
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   494
# concrete component base classes #############################################
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   495
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   496
class ReloadableMixIn(object):
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   497
    """simple mixin for reloadable parts of UI"""
1433
091ac3ba5d51 remove trailing white spaces
sylvain.thenault@logilab.fr
parents: 1432
diff changeset
   498
6140
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   499
    @property
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   500
    def domid(self):
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   501
        return domid(self.__regid__)
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   502
661
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   503
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   504
class Component(ReloadableMixIn, View):
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   505
    """base class for components"""
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   506
    __registry__ = 'components'
707
21a59b468f1a __selectors__ -> __select__
sylvain.thenault@logilab.fr
parents: 700
diff changeset
   507
    __select__ = yes()
661
4f61eb8a96b7 properly kill/depreciate component base class, only keep Component
sylvain.thenault@logilab.fr
parents: 660
diff changeset
   508
6140
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   509
    # XXX huummm, much probably useless (should be...)
3010
684a0c546774 [ui props] drop htmlclass as a persistent property, this is definitly useless/unusable
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 2656
diff changeset
   510
    htmlclass = 'mainRelated'
6140
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   511
    @property
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   512
    def cssclass(self):
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   513
        return '%s %s' % (self.htmlclass, domid(self.__regid__))
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   514
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   515
    # XXX should rely on ReloadableMixIn.domid
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   516
    @property
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   517
    def domid(self):
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   518
        return '%sComponent' % domid(self.__regid__)
65a619eb31c4 [boxes] introduce new boxes system
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6047
diff changeset
   519
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5533
diff changeset
   520
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5533
diff changeset
   521
class Adapter(AppObject):
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5533
diff changeset
   522
    """base class for adapters"""
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5533
diff changeset
   523
    __registry__ = 'adapters'
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5533
diff changeset
   524
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5533
diff changeset
   525
6864
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   526
class EntityAdapter(Adapter):
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   527
    """base class for entity adapters (eg adapt an entity to an interface)"""
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   528
    def __init__(self, _cw, **kwargs):
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   529
        try:
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   530
            self.entity = kwargs.pop('entity')
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   531
        except KeyError:
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   532
            self.entity = kwargs['rset'].get_entity(kwargs.get('row') or 0,
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   533
                                                    kwargs.get('col') or 0)
ea95004494a2 [adapters] fix #1424467 caused by precedence of bw compat method while the adapter is concret for a given class
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 6769
diff changeset
   534
        Adapter.__init__(self, _cw, **kwargs)