author | Adrien Di Mascio <Adrien.DiMascio@logilab.fr> |
Fri, 27 Aug 2010 13:44:55 +0200 | |
branch | stable |
changeset 6165 | 7da7c270bbbd |
parent 6029 | aac5dba278c7 |
child 6033 | 09db6f4619c9 |
permissions | -rw-r--r-- |
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# copyright 2003-2010 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 rql.utils import rqlvar_maker |
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from logilab.common.textutils import splitstrip |
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from cubicweb import Binary, ValidationError, typed_eid |
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from cubicweb.view import EntityAdapter, implements_adapter_compat |
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from cubicweb.selectors 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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@implements_adapter_compat('IEditControl') |
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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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@implements_adapter_compat('IEditControl') |
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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 typed_eid(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 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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class EditController(basecontrollers.ViewController): |
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__regid__ = 'edit' |
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def publish(self, rset=None): |
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"""edit / create / copy / delete entity / relations""" |
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for key in self._cw.form: |
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# There should be 0 or 1 action |
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if key.startswith('__action_'): |
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cbname = key[1:] |
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try: |
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callback = getattr(self, cbname) |
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except AttributeError: |
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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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def _default_publish(self): |
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req = self._cw |
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self.errors = [] |
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self.relations_rql = [] |
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form = req.form |
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116 |
# so we're able to know the main entity from the repository side |
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117 |
if '__maineid' in form: |
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118 |
req.set_shared_data('__maineid', form['__maineid'], querydata=True) |
0 | 119 |
# no specific action, generic edition |
120 |
self._to_create = req.data['eidmap'] = {} |
|
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121 |
self._pending_fields = req.data['pendingfields'] = set() |
0 | 122 |
try: |
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123 |
methodname = req.form.pop('__method', None) |
0 | 124 |
for eid in req.edited_eids(): |
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125 |
# __type and eid |
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126 |
formparams = req.extract_entity_params(eid, minparams=2) |
0 | 127 |
if methodname is not None: |
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128 |
entity = req.entity_from_eid(eid) |
0 | 129 |
method = getattr(entity, methodname) |
130 |
method(formparams) |
|
131 |
eid = self.edit_entity(formparams) |
|
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132 |
except (RequestError, NothingToEdit), ex: |
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133 |
if '__linkto' in req.form and 'eid' in req.form: |
0 | 134 |
self.execute_linkto() |
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135 |
elif not ('__delete' in req.form or '__insert' in req.form): |
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136 |
raise ValidationError(None, {None: unicode(ex)}) |
0 | 137 |
# handle relations in newly created entities |
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138 |
if self._pending_fields: |
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139 |
for form, field in self._pending_fields: |
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140 |
self.handle_formfield(form, field) |
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141 |
# execute rql to set all relations |
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142 |
for querydef in self.relations_rql: |
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143 |
self._cw.execute(*querydef) |
0 | 144 |
# XXX this processes *all* pending operations of *all* entities |
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145 |
if req.form.has_key('__delete'): |
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146 |
todelete = req.list_form_param('__delete', req.form, pop=True) |
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147 |
if todelete: |
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148 |
autoform.delete_relations(self._cw, todelete) |
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149 |
if req.form.has_key('__insert'): |
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150 |
warn('[3.6] stop using __insert, support will be removed', |
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|
151 |
DeprecationWarning) |
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152 |
toinsert = req.list_form_param('__insert', req.form, pop=True) |
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153 |
if toinsert: |
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154 |
autoform.insert_relations(self._cw, toinsert) |
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155 |
self._cw.remove_pending_operations() |
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156 |
if self.errors: |
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157 |
errors = dict((f.name, unicode(ex)) for f, ex in self.errors) |
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158 |
raise ValidationError(valerror_eid(form.get('__maineid')), errors) |
1753 | 159 |
|
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160 |
def _insert_entity(self, etype, eid, rqlquery): |
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161 |
rql = rqlquery.insert_query(etype) |
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162 |
try: |
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163 |
entity = self._cw.execute(rql, rqlquery.kwargs).get_entity(0, 0) |
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164 |
neweid = entity.eid |
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165 |
except ValidationError, ex: |
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166 |
self._to_create[eid] = ex.entity |
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167 |
if self._cw.json_request: # XXX (syt) why? |
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168 |
ex.entity = eid |
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169 |
raise |
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170 |
self._to_create[eid] = neweid |
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171 |
return neweid |
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172 |
|
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173 |
def _update_entity(self, eid, rqlquery): |
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174 |
self._cw.execute(rqlquery.update_query(eid), rqlquery.kwargs) |
1753 | 175 |
|
0 | 176 |
def edit_entity(self, formparams, multiple=False): |
177 |
"""edit / create / copy an entity and return its eid""" |
|
178 |
etype = formparams['__type'] |
|
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179 |
entity = self._cw.vreg['etypes'].etype_class(etype)(self._cw) |
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[editcontroller] turn eid into an int if possible, avoiding pbs. further down (case: preview cube)
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|
180 |
entity.eid = valerror_eid(formparams['eid']) |
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181 |
is_main_entity = self._cw.form.get('__maineid') == formparams['eid'] |
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|
182 |
# let a chance to do some entity specific stuff |
5556
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|
183 |
entity.cw_adapt_to('IEditControl').pre_web_edit() |
0 | 184 |
# create a rql query from parameters |
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|
185 |
rqlquery = RqlQuery() |
0 | 186 |
# process inlined relations at the same time as attributes |
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187 |
# this will generate less rql queries and might be useful in |
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|
188 |
# a few dark corners |
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189 |
formid = self._cw.form.get('__form_id', 'edition') |
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|
190 |
form = self._cw.vreg['forms'].select(formid, self._cw, entity=entity) |
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|
191 |
eid = form.actual_eid(entity.eid) |
4359
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fix Bytes submission pb on POST, due to multiple call to field.process_form_value
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|
192 |
form.formvalues = {} # init fields value cache |
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|
193 |
try: |
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194 |
editedfields = formparams['_cw_edited_fields'] |
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195 |
except KeyError: |
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196 |
raise RequestError(self._cw._('no edited fields specified for entity %s' % entity.eid)) |
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197 |
for editedfield in splitstrip(editedfields): |
0 | 198 |
try: |
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199 |
name, role = editedfield.split('-') |
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200 |
except: |
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201 |
name = editedfield |
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|
202 |
role = None |
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|
203 |
if form.field_by_name.im_func.func_code.co_argcount == 4: # XXX |
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204 |
field = form.field_by_name(name, role, eschema=entity.e_schema) |
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205 |
else: |
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206 |
field = form.field_by_name(name, role) |
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207 |
if field.has_been_modified(form): |
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208 |
self.handle_formfield(form, field, rqlquery) |
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209 |
if self.errors: |
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210 |
errors = dict((f.role_name(), unicode(ex)) for f, ex in self.errors) |
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211 |
raise ValidationError(valerror_eid(entity.eid), errors) |
0 | 212 |
if eid is None: # creation or copy |
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213 |
entity.eid = self._insert_entity(etype, formparams['eid'], rqlquery) |
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214 |
elif rqlquery.edited: # edition of an existant entity |
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215 |
self._update_entity(eid, rqlquery) |
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|
216 |
if is_main_entity: |
0 | 217 |
self.notify_edited(entity) |
218 |
if formparams.has_key('__delete'): |
|
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219 |
# XXX deprecate? |
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220 |
todelete = self._cw.list_form_param('__delete', formparams, pop=True) |
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autoform.delete_relations(self._cw, todelete) |
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if formparams.has_key('__cloned_eid'): |
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entity.copy_relations(typed_eid(formparams['__cloned_eid'])) |
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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 |
227 |
||
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def handle_formfield(self, form, field, rqlquery=None): |
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eschema = form.edited_entity.e_schema |
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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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234 |
or |
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(field.role == 'object' and field.name in eschema.objrels)): |
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236 |
continue |
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rschema = self._cw.vreg.schema.rschema(field.name) |
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if rschema.final: |
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rqlquery.kwargs[field.name] = value |
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rqlquery.edited.append('X %s %%(%s)s' % (rschema, rschema)) |
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241 |
else: |
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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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244 |
else: |
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245 |
origvalues = set() |
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if value is None or value == origvalues: |
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continue # not edited / not modified / to do later |
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if rschema.inlined and rqlquery is not None and field.role == 'subject': |
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self.handle_inlined_relation(form, field, value, origvalues, rqlquery) |
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250 |
elif form.edited_entity.has_eid(): |
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self.handle_relation(form, field, value, origvalues) |
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252 |
else: |
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self._pending_fields.add( (form, field) ) |
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254 |
|
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except ProcessFormError, exc: |
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self.errors.append((field, exc)) |
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257 |
|
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258 |
def handle_inlined_relation(self, form, field, values, origvalues, rqlquery): |
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259 |
"""handle edition for the (rschema, x) relation of the given entity |
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260 |
""" |
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261 |
attr = field.name |
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262 |
if values: |
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263 |
rqlquery.kwargs[attr] = iter(values).next() |
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rqlquery.edited.append('X %s %s' % (attr, attr.upper())) |
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265 |
rqlquery.restrictions.append('%s eid %%(%s)s' % (attr.upper(), attr)) |
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266 |
elif form.edited_entity.has_eid(): |
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267 |
self.handle_relation(form, field, values, origvalues) |
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268 |
|
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269 |
def handle_relation(self, form, field, values, origvalues): |
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270 |
"""handle edition for the (rschema, x) relation of the given entity |
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271 |
""" |
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272 |
etype = form.edited_entity.e_schema |
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273 |
rschema = self._cw.vreg.schema.rschema(field.name) |
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274 |
if field.role == 'subject': |
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275 |
desttype = rschema.objects(etype)[0] |
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276 |
card = rschema.rdef(etype, desttype).cardinality[0] |
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277 |
subjvar, objvar = 'X', 'Y' |
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278 |
else: |
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279 |
desttype = rschema.subjects(etype)[0] |
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280 |
card = rschema.rdef(desttype, etype).cardinality[1] |
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281 |
subjvar, objvar = 'Y', 'X' |
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282 |
eid = form.edited_entity.eid |
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283 |
if field.role == 'object' or not rschema.inlined or not values: |
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284 |
# this is not an inlined relation or no values specified, |
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285 |
# explicty remove relations |
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286 |
rql = 'DELETE %s %s %s WHERE X eid %%(x)s, Y eid %%(y)s' % ( |
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287 |
subjvar, rschema, objvar) |
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288 |
for reid in origvalues.difference(values): |
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289 |
self.relations_rql.append((rql, {'x': eid, 'y': reid})) |
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290 |
seteids = values.difference(origvalues) |
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291 |
if seteids: |
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292 |
rql = 'SET %s %s %s WHERE X eid %%(x)s, Y eid %%(y)s' % ( |
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293 |
subjvar, rschema, objvar) |
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294 |
for reid in seteids: |
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295 |
self.relations_rql.append((rql, {'x': eid, 'y': reid})) |
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296 |
|
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297 |
def delete_entities(self, eidtypes): |
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298 |
"""delete entities from the repository""" |
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299 |
redirect_info = set() |
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300 |
eidtypes = tuple(eidtypes) |
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301 |
for eid, etype in eidtypes: |
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302 |
entity = self._cw.entity_from_eid(eid, etype) |
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303 |
path, params = entity.cw_adapt_to('IEditControl').after_deletion_path() |
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304 |
redirect_info.add( (path, tuple(params.iteritems())) ) |
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305 |
entity.cw_delete() |
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306 |
if len(redirect_info) > 1: |
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307 |
# In the face of ambiguity, refuse the temptation to guess. |
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308 |
self._after_deletion_path = 'view', () |
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309 |
else: |
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self._after_deletion_path = iter(redirect_info).next() |
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311 |
if len(eidtypes) > 1: |
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312 |
self._cw.set_message(self._cw._('entities deleted')) |
11899d28337f
[web] cleanup: move delete_entities to the edit controller
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parents:
4665
diff
changeset
|
313 |
else: |
11899d28337f
[web] cleanup: move delete_entities to the edit controller
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4665
diff
changeset
|
314 |
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
|
315 |
|
0 | 316 |
def _action_apply(self): |
317 |
self._default_publish() |
|
318 |
self.reset() |
|
1753 | 319 |
|
0 | 320 |
def _action_cancel(self): |
3451
6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
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diff
changeset
|
321 |
errorurl = self._cw.form.get('__errorurl') |
0 | 322 |
if errorurl: |
3451
6b46d73823f5
[api] work in progress, use __regid__, cw_*, etc.
Adrien Di Mascio <Adrien.DiMascio@logilab.fr>
parents:
3396
diff
changeset
|
323 |
self._cw.cancel_edition(errorurl) |
4940
3143a1258d62
[web deletion] must use set_message
Sylvain Thénault <sylvain.thenault@logilab.fr>
parents:
4934
diff
changeset
|
324 |
self._cw.set_message(self._cw._('edit canceled')) |
0 | 325 |
return self.reset() |
326 |
||
327 |
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
|
328 |
self.delete_entities(self._cw.edited_eids(withtype=True)) |
0 | 329 |
return self.reset() |