web/views/editcontroller.py
author Anthony Truchet <anthony.truchet@logilab.fr>
Thu, 25 Apr 2013 10:16:25 +0200
changeset 10016 984505da8b89
parent 9774 b7b71be569cf
child 10385 cb3a48780615
permissions -rw-r--r--
[forms] closes #2437859 - Detect and prevent concurrent edition of the same entity. Add the timestamp of form generation to each entity's meta-information fields. On form validation, check that no concurrent change is overwritten and raises a ValidationError in case of concurrent change. A nicer handling with a message and a link to the new version of the entity would be a good thing...
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# copyright 2003-2013 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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"""The edit controller, automatically handling entity form submitting"""
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__docformat__ = "restructuredtext en"
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from warnings import warn
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from collections import defaultdict
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from datetime import datetime
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from logilab.common.deprecation import deprecated
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from logilab.common.graph import ordered_nodes
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from rql.utils import rqlvar_maker
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from cubicweb import Binary, ValidationError
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from cubicweb.view import EntityAdapter
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from cubicweb.predicates import is_instance
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from cubicweb.web import (INTERNAL_FIELD_VALUE, RequestError, NothingToEdit,
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                          ProcessFormError)
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from cubicweb.web.views import basecontrollers, autoform
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class IEditControlAdapter(EntityAdapter):
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    __regid__ = 'IEditControl'
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    __select__ = is_instance('Any')
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    def __init__(self, _cw, **kwargs):
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        if self.__class__ is not IEditControlAdapter:
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            warn('[3.14] IEditControlAdapter is deprecated, override EditController'
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                 ' using match_edited_type or match_form_id selectors for example.',
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                 DeprecationWarning)
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        super(IEditControlAdapter, self).__init__(_cw, **kwargs)
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    def after_deletion_path(self):
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        """return (path, parameters) which should be used as redirect
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        information when this entity is being deleted
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        """
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        parent = self.entity.cw_adapt_to('IBreadCrumbs').parent_entity()
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        if parent is not None:
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            return parent.rest_path(), {}
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        return str(self.entity.e_schema).lower(), {}
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    def pre_web_edit(self):
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        """callback called by the web editcontroller when an entity will be
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        created/modified, to let a chance to do some entity specific stuff.
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        Do nothing by default.
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        """
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        pass
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def valerror_eid(eid):
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    try:
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        return int(eid)
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    except (ValueError, TypeError):
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        return eid
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class RqlQuery(object):
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    def __init__(self):
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        self.edited = []
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        self.restrictions = []
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        self.kwargs = {}
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    def __repr__(self):
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        return ('Query <edited=%r restrictions=%r kwargs=%r>' % (
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            self.edited, self.restrictions, self.kwargs))
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    def insert_query(self, etype):
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        if self.edited:
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            rql = 'INSERT %s X: %s' % (etype, ','.join(self.edited))
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        else:
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            rql = 'INSERT %s X' % etype
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        if self.restrictions:
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            rql += ' WHERE %s' % ','.join(self.restrictions)
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        return rql
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    def update_query(self, eid):
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        varmaker = rqlvar_maker()
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        var = varmaker.next()
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        while var in self.kwargs:
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            var = varmaker.next()
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        rql = 'SET %s WHERE X eid %%(%s)s' % (','.join(self.edited), var)
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        if self.restrictions:
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            rql += ', %s' % ','.join(self.restrictions)
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        self.kwargs[var] = eid
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        return rql
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    def set_attribute(self, attr, value):
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        self.kwargs[attr] = value
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   107
        self.edited.append('X %s %%(%s)s' % (attr, attr))
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diff changeset
   108
b5762ac9a82e [editcontroller] extract RQLQuery.set_attribute/set_inlined methods from handle_field/handle_inlined_relation
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diff changeset
   109
    def set_inlined(self, relation, value):
b5762ac9a82e [editcontroller] extract RQLQuery.set_attribute/set_inlined methods from handle_field/handle_inlined_relation
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   110
        self.kwargs[relation] = value
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diff changeset
   111
        self.edited.append('X %s %s' % (relation, relation.upper()))
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diff changeset
   112
        self.restrictions.append('%s eid %%(%s)s' % (relation.upper(), relation))
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   113
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   115
class EditController(basecontrollers.ViewController):
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   116
    __regid__ = 'edit'
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   118
    def publish(self, rset=None):
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   119
        """edit / create / copy / delete entity / relations"""
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   120
        for key in self._cw.form:
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            # There should be 0 or 1 action
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   122
            if key.startswith('__action_'):
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   123
                cbname = key[1:]
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                try:
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                    callback = getattr(self, cbname)
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   126
                except AttributeError:
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   127
                    raise RequestError(self._cw._('invalid action %r' % key))
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                else:
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                    return callback()
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        self._default_publish()
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        self.reset()
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   133
    def _ordered_formparams(self):
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   134
        """ Return form parameters dictionaries for each edited entity.
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diff changeset
   135
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
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   136
        We ensure that entities can be created in this order accounting for
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
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   137
        mandatory inlined relations.
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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   138
        """
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parents: 9178
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   139
        req = self._cw
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   140
        graph = {}
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parents: 9178
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   141
        get_rschema = self._cw.vreg.schema.rschema
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parents: 9178
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   142
        # minparams = 2, because at least __type and eid are needed
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
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   143
        values_by_eid = dict((eid, req.extract_entity_params(eid, minparams=2))
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   144
                             for eid in req.edited_eids())
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   145
        # iterate over all the edited entities
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   146
        for eid, values in values_by_eid.iteritems():
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   147
            # add eid to the dependency graph
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
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   148
            graph.setdefault(eid, set())
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parents: 9178
diff changeset
   149
            # search entity's edited fields for mandatory inlined relation
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   150
            for param in values['_cw_entity_fields'].split(','):
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   151
                try:
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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   152
                    rtype, role = param.split('-')
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parents: 9178
diff changeset
   153
                except ValueError:
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
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   154
                    # e.g. param='__type'
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   155
                    continue
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parents: 9178
diff changeset
   156
                rschema = get_rschema(rtype)
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   157
                if rschema.inlined:
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   158
                    for target in rschema.targets(values['__type'], role):
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   159
                        rdef = rschema.role_rdef(values['__type'], target, role)
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parents: 9178
diff changeset
   160
                        # if cardinality is 1 and if the target entity is being
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   161
                        # simultaneously edited, the current entity must be
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   162
                        # created before the target one
9439
549c999d06d2 [editcontroller] fix cardinality computation (closes #3120495)
Aurelien Campeas <aurelien.campeas@logilab.fr>
parents: 9256
diff changeset
   163
                        if rdef.cardinality[0 if role == 'subject' else 1] == '1':
9179
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   164
                            target_eid = values[param]
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   165
                            if target_eid in values_by_eid:
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   166
                                # add dependency from the target entity to the
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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diff changeset
   167
                                # current one
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parents: 9179
diff changeset
   168
                                if role == 'object':
13461cb8ff40 [editcontrollers] Account for role in the ordering of entities (Complements #3031719)
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diff changeset
   169
                                    graph.setdefault(target_eid, set()).add(eid)
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diff changeset
   170
                                else:
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diff changeset
   171
                                    graph.setdefault(eid, set()).add(target_eid)
9179
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diff changeset
   172
                                break
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   173
        for eid in reversed(ordered_nodes(graph)):
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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diff changeset
   174
            yield values_by_eid[eid]
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diff changeset
   175
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   176
    def _default_publish(self):
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   177
        req = self._cw
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   178
        self.errors = []
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   179
        self.relations_rql = []
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   180
        form = req.form
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diff changeset
   181
        # so we're able to know the main entity from the repository side
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diff changeset
   182
        if '__maineid' in form:
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parents: 9635
diff changeset
   183
            req.transaction_data['__maineid'] = form['__maineid']
0
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   184
        # no specific action, generic edition
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   185
        self._to_create = req.data['eidmap'] = {}
9179
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   186
        # those two data variables are used to handle relation from/to entities
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   187
        # which doesn't exist at time where the entity is edited and that
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   188
        # deserves special treatment
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   189
        req.data['pending_inlined'] = defaultdict(set)
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   190
        req.data['pending_others'] = set()
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21468682f688 restore vital block of code (gone in 6384:89d5b339ebdd)
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parents: 6384
diff changeset
   191
        try:
9179
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   192
            for formparams in self._ordered_formparams():
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parents: 6384
diff changeset
   193
                eid = self.edit_entity(formparams)
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8556
diff changeset
   194
        except (RequestError, NothingToEdit) as ex:
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parents: 6384
diff changeset
   195
            if '__linkto' in req.form and 'eid' in req.form:
21468682f688 restore vital block of code (gone in 6384:89d5b339ebdd)
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parents: 6384
diff changeset
   196
                self.execute_linkto()
21468682f688 restore vital block of code (gone in 6384:89d5b339ebdd)
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parents: 6384
diff changeset
   197
            elif not ('__delete' in req.form or '__insert' in req.form):
21468682f688 restore vital block of code (gone in 6384:89d5b339ebdd)
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parents: 6384
diff changeset
   198
                raise ValidationError(None, {None: unicode(ex)})
9179
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   199
        # all pending inlined relations to newly created entities have been
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   200
        # treated now (pop to ensure there are no attempt to add new ones)
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   201
        pending_inlined = req.data.pop('pending_inlined')
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   202
        assert not pending_inlined, pending_inlined
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   203
        # handle all other remaining relations now
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   204
        for form_, field in req.data.pop('pending_others'):
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   205
            self.handle_formfield(form_, field)
570208f74a84 [editcontrollers] Ensure entities are created in an order satisfying schema constraints. Closes #3031719
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parents: 9178
diff changeset
   206
        # then execute rql to set all relations
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a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
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diff changeset
   207
        for querydef in self.relations_rql:
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diff changeset
   208
            self._cw.execute(*querydef)
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        # XXX this processes *all* pending operations of *all* entities
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        if '__delete' in req.form:
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            todelete = req.list_form_param('__delete', req.form, pop=True)
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            if todelete:
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                autoform.delete_relations(self._cw, todelete)
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        self._cw.remove_pending_operations()
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        if self.errors:
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            errors = dict((f.name, unicode(ex)) for f, ex in self.errors)
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            raise ValidationError(valerror_eid(form.get('__maineid')), errors)
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    def _insert_entity(self, etype, eid, rqlquery):
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        rql = rqlquery.insert_query(etype)
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        try:
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            entity = self._cw.execute(rql, rqlquery.kwargs).get_entity(0, 0)
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            neweid = entity.eid
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        except ValidationError as ex:
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            self._to_create[eid] = ex.entity
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            if self._cw.ajax_request: # XXX (syt) why?
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                ex.entity = eid
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            raise
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        self._to_create[eid] = neweid
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        return neweid
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    def _update_entity(self, eid, rqlquery):
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        self._cw.execute(rqlquery.update_query(eid), rqlquery.kwargs)
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    def edit_entity(self, formparams, multiple=False):
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        """edit / create / copy an entity and return its eid"""
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        req = self._cw
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        etype = formparams['__type']
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        entity = req.vreg['etypes'].etype_class(etype)(req)
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        entity.eid = valerror_eid(formparams['eid'])
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        is_main_entity = req.form.get('__maineid') == formparams['eid']
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        # let a chance to do some entity specific stuff
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        entity.cw_adapt_to('IEditControl').pre_web_edit()
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        # create a rql query from parameters
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        rqlquery = RqlQuery()
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        # process inlined relations at the same time as attributes
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        # this will generate less rql queries and might be useful in
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        # a few dark corners
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        if is_main_entity:
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            formid = req.form.get('__form_id', 'edition')
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        else:
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            # XXX inlined forms formid should be saved in a different formparams entry
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            # inbetween, use cubicweb standard formid for inlined forms
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            formid = 'edition'
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        form = req.vreg['forms'].select(formid, req, entity=entity)
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        eid = form.actual_eid(entity.eid)
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        editedfields = formparams['_cw_entity_fields']
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        form.formvalues = {} # init fields value cache
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        for field in form.iter_modified_fields(editedfields, entity):
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            self.handle_formfield(form, field, rqlquery)
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   261
        # if there are some inlined field which were waiting for this entity's
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        # creation, add relevant data to the rqlquery
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   263
        for form_, field in req.data['pending_inlined'].pop(entity.eid, ()):
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            rqlquery.set_inlined(field.name, form_.edited_entity.eid)
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        if self.errors:
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            errors = dict((f.role_name(), unicode(ex)) for f, ex in self.errors)
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            raise ValidationError(valerror_eid(entity.eid), errors)
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        if eid is None: # creation or copy
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Denis Laxalde <denis.laxalde@logilab.fr>
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            entity.eid = eid = self._insert_entity(etype, formparams['eid'], rqlquery)
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        elif rqlquery.edited: # edition of an existant entity
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            self.check_concurrent_edition(formparams, eid)
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            self._update_entity(eid, rqlquery)
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        if is_main_entity:
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            self.notify_edited(entity)
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        if '__delete' in formparams:
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            # XXX deprecate?
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   277
            todelete = req.list_form_param('__delete', formparams, pop=True)
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            autoform.delete_relations(req, todelete)
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        if '__cloned_eid' in formparams:
8748
f5027f8d2478 drop typed_eid() in favour of int() (closes #2742462)
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            entity.copy_relations(int(formparams['__cloned_eid']))
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   281
        if is_main_entity: # only execute linkto for the main entity
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            self.execute_linkto(entity.eid)
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        return eid
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   285
    def handle_formfield(self, form, field, rqlquery=None):
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        eschema = form.edited_entity.e_schema
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   287
        try:
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            for field, value in field.process_posted(form):
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                if not (
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                    (field.role == 'subject' and field.name in eschema.subjrels)
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diff changeset
   291
                    or
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                    (field.role == 'object' and field.name in eschema.objrels)):
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   293
                    continue
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   294
                rschema = self._cw.vreg.schema.rschema(field.name)
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   295
                if rschema.final:
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   296
                    rqlquery.set_attribute(field.name, value)
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   297
                else:
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   298
                    if form.edited_entity.has_eid():
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                        origvalues = set(entity.eid for entity in form.edited_entity.related(field.name, field.role, entities=True))
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   300
                    else:
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                        origvalues = set()
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                    if value is None or value == origvalues:
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   303
                        continue # not edited / not modified / to do later
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Sylvain Thénault <sylvain.thenault@logilab.fr>
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diff changeset
   304
                    if rschema.inlined and rqlquery is not None and field.role == 'subject':
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diff changeset
   305
                        self.handle_inlined_relation(form, field, value, origvalues, rqlquery)
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diff changeset
   306
                    elif form.edited_entity.has_eid():
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                        self.handle_relation(form, field, value, origvalues)
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diff changeset
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                    else:
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diff changeset
   309
                        form._cw.data['pending_others'].add( (form, field) )
8695
358d8bed9626 [toward-py3k] rewrite to "except AnException as exc:" (part of #2711624)
Nicolas Chauvat <nicolas.chauvat@logilab.fr>
parents: 8556
diff changeset
   310
        except ProcessFormError as exc:
3387
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3386
diff changeset
   311
            self.errors.append((field, exc))
a357d4147eee [forms] work-in-progress, big editcontroller refactoring: let fields/widgets process posted data
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3386
diff changeset
   312
4171
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   313
    def handle_inlined_relation(self, form, field, values, origvalues, rqlquery):
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   314
        """handle edition for the (rschema, x) relation of the given entity
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   315
        """
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   316
        if values:
9178
b5762ac9a82e [editcontroller] extract RQLQuery.set_attribute/set_inlined methods from handle_field/handle_inlined_relation
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 9177
diff changeset
   317
            rqlquery.set_inlined(field.name, iter(values).next())
4171
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   318
        elif form.edited_entity.has_eid():
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   319
            self.handle_relation(form, field, values, origvalues)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   320
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   321
    def handle_relation(self, form, field, values, origvalues):
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   322
        """handle edition for the (rschema, x) relation of the given entity
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   323
        """
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   324
        etype = form.edited_entity.e_schema
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   325
        rschema = self._cw.vreg.schema.rschema(field.name)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   326
        if field.role == 'subject':
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   327
            desttype = rschema.objects(etype)[0]
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   328
            card = rschema.rdef(etype, desttype).cardinality[0]
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   329
            subjvar, objvar = 'X', 'Y'
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   330
        else:
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   331
            desttype = rschema.subjects(etype)[0]
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   332
            card = rschema.rdef(desttype, etype).cardinality[1]
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   333
            subjvar, objvar = 'Y', 'X'
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   334
        eid = form.edited_entity.eid
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   335
        if field.role == 'object' or not rschema.inlined or not values:
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   336
            # this is not an inlined relation or no values specified,
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   337
            # explicty remove relations
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   338
            rql = 'DELETE %s %s %s WHERE X eid %%(x)s, Y eid %%(y)s' % (
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   339
                subjvar, rschema, objvar)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   340
            for reid in origvalues.difference(values):
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5061
diff changeset
   341
                self.relations_rql.append((rql, {'x': eid, 'y': reid}))
4171
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   342
        seteids = values.difference(origvalues)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   343
        if seteids:
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   344
            rql = 'SET %s %s %s WHERE X eid %%(x)s, Y eid %%(y)s' % (
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   345
                subjvar, rschema, objvar)
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   346
            for reid in seteids:
5174
78438ad513ca #759035: Automate addition of eid cachekey in RQL analysis
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5061
diff changeset
   347
                self.relations_rql.append((rql, {'x': eid, 'y': reid}))
4171
f1b9f0ed1253 make new editcontroller works, based on a _cw_edited_fields hidden input
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4160
diff changeset
   348
4883
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   349
    def delete_entities(self, eidtypes):
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   350
        """delete entities from the repository"""
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   351
        redirect_info = set()
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   352
        eidtypes = tuple(eidtypes)
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   353
        for eid, etype in eidtypes:
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   354
            entity = self._cw.entity_from_eid(eid, etype)
5556
9ab2b4c74baf [entity] introduce a new 'adapters' registry
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5426
diff changeset
   355
            path, params = entity.cw_adapt_to('IEditControl').after_deletion_path()
4883
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   356
            redirect_info.add( (path, tuple(params.iteritems())) )
5557
1a534c596bff [entity] continue cleanup of Entity/AnyEntity namespace
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 5556
diff changeset
   357
            entity.cw_delete()
4883
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   358
        if len(redirect_info) > 1:
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   359
            # In the face of ambiguity, refuse the temptation to guess.
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   360
            self._after_deletion_path = 'view', ()
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   361
        else:
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   362
            self._after_deletion_path = iter(redirect_info).next()
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   363
        if len(eidtypes) > 1:
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   364
            self._cw.set_message(self._cw._('entities deleted'))
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   365
        else:
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   366
            self._cw.set_message(self._cw._('entity deleted'))
11899d28337f [web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4665
diff changeset
   367
10016
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   368
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   369
    def check_concurrent_edition(self, formparams, eid):
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   370
        req = self._cw
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   371
        try:
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   372
            form_ts = datetime.fromtimestamp(float(formparams['__form_generation_time']))
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   373
        except KeyError:
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   374
            # Backward and tests compatibility : if no timestamp consider edition OK
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   375
            return
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   376
        if req.execute("Any X WHERE X modification_date > %(fts)s, X eid %(eid)s",
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   377
                       {'eid': eid, 'fts': form_ts}):
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   378
            # We only mark the message for translation but the actual
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   379
            # translation will be handled by the Validation mechanism...
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   380
            msg = _("Entity %(eid)s has changed since you started to edit it."
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   381
                    " Reload the page and reapply your changes.")
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   382
            # ... this is why we pass the formats' dict as a third argument.
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   383
            raise ValidationError(eid, {None: msg}, {'eid' : eid})
984505da8b89 [forms] closes #2437859 - Detect and prevent concurrent edition of the same entity.
Anthony Truchet <anthony.truchet@logilab.fr>
parents: 9774
diff changeset
   384
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   385
    def _action_apply(self):
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   386
        self._default_publish()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   387
        self.reset()
1753
ba01605cdd9a delete-trailing-spaces
sylvain.thenault@logilab.fr
parents: 1361
diff changeset
   388
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   389
    def _action_cancel(self):
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   390
        errorurl = self._cw.form.get('__errorurl')
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   391
        if errorurl:
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   392
            self._cw.cancel_edition(errorurl)
4940
3143a1258d62 [web deletion] must use set_message
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents: 4934
diff changeset
   393
        self._cw.set_message(self._cw._('edit canceled'))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   394
        return self.reset()
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   395
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   396
    def _action_delete(self):
3451
6b46d73823f5 [api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents: 3396
diff changeset
   397
        self.delete_entities(self._cw.edited_eids(withtype=True))
0
b97547f5f1fa Showtime !
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
diff changeset
   398
        return self.reset()