~openerp-dev/openobject-server/trunk-staging-mat

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
# -*- coding: utf-8 -*-

##############################################################################
#
#    OpenERP, Open Source Business Applications
#    Copyright (C) 2004-2014 OpenERP S.A. (<http://openerp.com>).
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################
import logging
import re
import time
import types

import openerp
import openerp.modules.registry
from openerp import SUPERUSER_ID
from openerp import tools
from openerp.osv import fields,osv
from openerp.osv.orm import Model, browse_null
from openerp.tools.safe_eval import safe_eval as eval
from openerp.tools import config
from openerp.tools.translate import _
from openerp.osv.orm import except_orm, browse_record, MAGIC_COLUMNS

_logger = logging.getLogger(__name__)

MODULE_UNINSTALL_FLAG = '_force_unlink'

def _get_fields_type(self, cr, uid, context=None):
    # Avoid too many nested `if`s below, as RedHat's Python 2.6
    # break on it. See bug 939653.
    return sorted([(k,k) for k,v in fields.__dict__.iteritems()
                      if type(v) == types.TypeType and \
                         issubclass(v, fields._column) and \
                         v != fields._column and \
                         not v._deprecated and \
                         not issubclass(v, fields.function)])

def _in_modules(self, cr, uid, ids, field_name, arg, context=None):
    #pseudo-method used by fields.function in ir.model/ir.model.fields
    module_pool = self.pool["ir.module.module"]
    installed_module_ids = module_pool.search(cr, uid, [('state','=','installed')])
    installed_module_names = module_pool.read(cr, uid, installed_module_ids, ['name'], context=context)
    installed_modules = set(x['name'] for x in installed_module_names)

    result = {}
    xml_ids = osv.osv._get_xml_ids(self, cr, uid, ids)
    for k,v in xml_ids.iteritems():
        result[k] = ', '.join(sorted(installed_modules & set(xml_id.split('.')[0] for xml_id in v)))
    return result

class ir_model(osv.osv):
    _name = 'ir.model'
    _description = "Models"
    _order = 'model'

    def _is_osv_memory(self, cr, uid, ids, field_name, arg, context=None):
        models = self.browse(cr, uid, ids, context=context)
        res = dict.fromkeys(ids)
        for model in models:
            if model.model in self.pool:
                res[model.id] = self.pool[model.model].is_transient()
            else:
                _logger.error('Missing model %s' % (model.model, ))
        return res

    def _search_osv_memory(self, cr, uid, model, name, domain, context=None):
        if not domain:
            return []
        __, operator, value = domain[0]
        if operator not in ['=', '!=']:
            raise osv.except_osv(_("Invalid Search Criteria"), _('The osv_memory field can only be compared with = and != operator.'))
        value = bool(value) if operator == '=' else not bool(value)
        all_model_ids = self.search(cr, uid, [], context=context)
        is_osv_mem = self._is_osv_memory(cr, uid, all_model_ids, 'osv_memory', arg=None, context=context)
        return [('id', 'in', [id for id in is_osv_mem if bool(is_osv_mem[id]) == value])]

    def _view_ids(self, cr, uid, ids, field_name, arg, context=None):
        models = self.browse(cr, uid, ids)
        res = {}
        for model in models:
            res[model.id] = self.pool["ir.ui.view"].search(cr, uid, [('model', '=', model.model)])
        return res

    _columns = {
        'name': fields.char('Model Description', translate=True, required=True),
        'model': fields.char('Model', required=True, select=1),
        'info': fields.text('Information'),
        'field_id': fields.one2many('ir.model.fields', 'model_id', 'Fields', required=True),
        'state': fields.selection([('manual','Custom Object'),('base','Base Object')],'Type',readonly=True),
        'access_ids': fields.one2many('ir.model.access', 'model_id', 'Access'),
        'osv_memory': fields.function(_is_osv_memory, string='Transient Model', type='boolean',
            fnct_search=_search_osv_memory,
            help="This field specifies whether the model is transient or not (i.e. if records are automatically deleted from the database or not)"),
        'modules': fields.function(_in_modules, type='char', string='In Modules', help='List of modules in which the object is defined or inherited'),
        'view_ids': fields.function(_view_ids, type='one2many', obj='ir.ui.view', string='Views'),
    }

    _defaults = {
        'model': 'x_',
        'state': lambda self,cr,uid,ctx=None: (ctx and ctx.get('manual',False)) and 'manual' or 'base',
    }

    def _check_model_name(self, cr, uid, ids, context=None):
        for model in self.browse(cr, uid, ids, context=context):
            if model.state=='manual':
                if not model.model.startswith('x_'):
                    return False
            if not re.match('^[a-z_A-Z0-9.]+$',model.model):
                return False
        return True

    def _model_name_msg(self, cr, uid, ids, context=None):
        return _('The Object name must start with x_ and not contain any special character !')

    _constraints = [
        (_check_model_name, _model_name_msg, ['model']),
    ]
    _sql_constraints = [
        ('obj_name_uniq', 'unique (model)', 'Each model must be unique!'),
    ]

    # overridden to allow searching both on model name (model field)
    # and model description (name field)
    def _name_search(self, cr, uid, name='', args=None, operator='ilike', context=None, limit=100, name_get_uid=None):
        if args is None:
            args = []
        domain = args + ['|', ('model', operator, name), ('name', operator, name)]
        return self.name_get(cr, name_get_uid or uid,
                             super(ir_model, self).search(cr, uid, domain, limit=limit, context=context),
                             context=context)

    def _drop_table(self, cr, uid, ids, context=None):
        for model in self.browse(cr, uid, ids, context):
            model_pool = self.pool[model.model]
            cr.execute('select relkind from pg_class where relname=%s', (model_pool._table,))
            result = cr.fetchone()
            if result and result[0] == 'v':
                cr.execute('DROP view %s' % (model_pool._table,))
            elif result and result[0] == 'r':
                cr.execute('DROP TABLE %s' % (model_pool._table,))
        return True

    def unlink(self, cr, user, ids, context=None):
        # Prevent manual deletion of module tables
        if context is None: context = {}
        if isinstance(ids, (int, long)):
            ids = [ids]
        if not context.get(MODULE_UNINSTALL_FLAG):
            for model in self.browse(cr, user, ids, context):
                if model.state != 'manual':
                    raise except_orm(_('Error'), _("Model '%s' contains module data and cannot be removed!") % (model.name,))

        self._drop_table(cr, user, ids, context)
        res = super(ir_model, self).unlink(cr, user, ids, context)
        if not context.get(MODULE_UNINSTALL_FLAG):
            # only reload pool for normal unlink. For module uninstall the
            # reload is done independently in openerp.modules.loading
            cr.commit() # must be committed before reloading registry in new cursor
            openerp.modules.registry.RegistryManager.new(cr.dbname)
            openerp.modules.registry.RegistryManager.signal_registry_change(cr.dbname)

        return res

    def write(self, cr, user, ids, vals, context=None):
        if context:
            context.pop('__last_update', None)
        # Filter out operations 4 link from field id, because openerp-web
        # always write (4,id,False) even for non dirty items
        if 'field_id' in vals:
            vals['field_id'] = [op for op in vals['field_id'] if op[0] != 4]
        return super(ir_model,self).write(cr, user, ids, vals, context)

    def create(self, cr, user, vals, context=None):
        if  context is None:
            context = {}
        if context and context.get('manual'):
            vals['state']='manual'
        res = super(ir_model,self).create(cr, user, vals, context)
        if vals.get('state','base')=='manual':
            self.instanciate(cr, user, vals['model'], context)
            ctx = dict(context,
                field_name=vals['name'],
                field_state='manual',
                select=vals.get('select_level', '0'),
                update_custom_fields=True)
            self.pool[vals['model']]._auto_init(cr, ctx)
            self.pool[vals['model']]._auto_end(cr, ctx) # actually create FKs!
            openerp.modules.registry.RegistryManager.signal_registry_change(cr.dbname)
        return res

    def instanciate(self, cr, user, model, context=None):
        class x_custom_model(osv.osv):
            _custom = True
        x_custom_model._name = model
        x_custom_model._module = False
        a = x_custom_model.create_instance(self.pool, cr)
        if not a._columns:
            x_name = 'id'
        elif 'x_name' in a._columns.keys():
            x_name = 'x_name'
        else:
            x_name = a._columns.keys()[0]
        x_custom_model._rec_name = x_name
        a._rec_name = x_name

class ir_model_fields(osv.osv):
    _name = 'ir.model.fields'
    _description = "Fields"
    _rec_name = 'field_description'

    _columns = {
        'name': fields.char('Name', required=True, select=1),
        'complete_name': fields.char('Complete Name', select=1),
        'model': fields.char('Object Name', required=True, select=1,
            help="The technical name of the model this field belongs to"),
        'relation': fields.char('Object Relation',
            help="For relationship fields, the technical name of the target model"),
        'relation_field': fields.char('Relation Field',
            help="For one2many fields, the field on the target model that implement the opposite many2one relationship"),
        'model_id': fields.many2one('ir.model', 'Model', required=True, select=True, ondelete='cascade',
            help="The model this field belongs to"),
        'field_description': fields.char('Field Label', required=True),
        'ttype': fields.selection(_get_fields_type, 'Field Type', required=True),
        'selection': fields.char('Selection Options', help="List of options for a selection field, "
            "specified as a Python expression defining a list of (key, label) pairs. "
            "For example: [('blue','Blue'),('yellow','Yellow')]"),
        'required': fields.boolean('Required'),
        'readonly': fields.boolean('Readonly'),
        'select_level': fields.selection([('0','Not Searchable'),('1','Always Searchable'),('2','Advanced Search (deprecated)')],'Searchable', required=True),
        'translate': fields.boolean('Translatable', help="Whether values for this field can be translated (enables the translation mechanism for that field)"),
        'size': fields.integer('Size'),
        'state': fields.selection([('manual','Custom Field'),('base','Base Field')],'Type', required=True, readonly=True, select=1),
        'on_delete': fields.selection([('cascade','Cascade'),('set null','Set NULL')], 'On Delete', help='On delete property for many2one fields'),
        'domain': fields.char('Domain', help="The optional domain to restrict possible values for relationship fields, "
            "specified as a Python expression defining a list of triplets. "
            "For example: [('color','=','red')]"),
        'groups': fields.many2many('res.groups', 'ir_model_fields_group_rel', 'field_id', 'group_id', 'Groups'),
        'selectable': fields.boolean('Selectable'),
        'modules': fields.function(_in_modules, type='char', string='In Modules', help='List of modules in which the field is defined'),
        'serialization_field_id': fields.many2one('ir.model.fields', 'Serialization Field', domain = "[('ttype','=','serialized')]",
                                                  ondelete='cascade', help="If set, this field will be stored in the sparse "
                                                                           "structure of the serialization field, instead "
                                                                           "of having its own database column. This cannot be "
                                                                           "changed after creation."),
    }
    _rec_name='field_description'
    _defaults = {
        'selection': "",
        'domain': "[]",
        'name': 'x_',
        'state': lambda self,cr,uid,ctx=None: (ctx and ctx.get('manual',False)) and 'manual' or 'base',
        'on_delete': 'set null',
        'select_level': '0',
        'field_description': '',
        'selectable': 1,
    }
    _order = "name"

    def _check_selection(self, cr, uid, selection, context=None):
        try:
            selection_list = eval(selection)
        except Exception:
            _logger.warning('Invalid selection list definition for fields.selection', exc_info=True)
            raise except_orm(_('Error'),
                    _("The Selection Options expression is not a valid Pythonic expression."
                      "Please provide an expression in the [('key','Label'), ...] format."))

        check = True
        if not (isinstance(selection_list, list) and selection_list):
            check = False
        else:
            for item in selection_list:
                if not (isinstance(item, (tuple,list)) and len(item) == 2):
                    check = False
                    break

        if not check:
                raise except_orm(_('Error'),
                    _("The Selection Options expression is must be in the [('key','Label'), ...] format!"))
        return True

    def _size_gt_zero_msg(self, cr, user, ids, context=None):
        return _('Size of the field can never be less than 0 !')

    _sql_constraints = [
        ('size_gt_zero', 'CHECK (size>=0)',_size_gt_zero_msg ),
    ]

    def _drop_column(self, cr, uid, ids, context=None):
        for field in self.browse(cr, uid, ids, context):
            if field.name in MAGIC_COLUMNS:
                continue
            model = self.pool[field.model]
            cr.execute('select relkind from pg_class where relname=%s', (model._table,))
            result = cr.fetchone()
            cr.execute("SELECT column_name FROM information_schema.columns WHERE table_name ='%s' and column_name='%s'" %(model._table, field.name))
            column_name = cr.fetchone()
            if column_name and (result and result[0] == 'r'):
                cr.execute('ALTER table "%s" DROP column "%s" cascade' % (model._table, field.name))
            model._columns.pop(field.name, None)
        return True

    def unlink(self, cr, user, ids, context=None):
        # Prevent manual deletion of module columns
        if context is None: context = {}
        if isinstance(ids, (int, long)):
            ids = [ids]
        if not context.get(MODULE_UNINSTALL_FLAG) and \
                any(field.state != 'manual' for field in self.browse(cr, user, ids, context)):
            raise except_orm(_('Error'), _("This column contains module data and cannot be removed!"))

        self._drop_column(cr, user, ids, context)
        res = super(ir_model_fields, self).unlink(cr, user, ids, context)
        if not context.get(MODULE_UNINSTALL_FLAG):
            cr.commit()
            openerp.modules.registry.RegistryManager.signal_registry_change(cr.dbname)
        return res

    def create(self, cr, user, vals, context=None):
        if 'model_id' in vals:
            model_data = self.pool['ir.model'].browse(cr, user, vals['model_id'])
            vals['model'] = model_data.model
        if context is None:
            context = {}
        if context and context.get('manual',False):
            vals['state'] = 'manual'
        if vals.get('ttype', False) == 'selection':
            if not vals.get('selection',False):
                raise except_orm(_('Error'), _('For selection fields, the Selection Options must be given!'))
            self._check_selection(cr, user, vals['selection'], context=context)
        res = super(ir_model_fields,self).create(cr, user, vals, context)
        if vals.get('state','base') == 'manual':
            if not vals['name'].startswith('x_'):
                raise except_orm(_('Error'), _("Custom fields must have a name that starts with 'x_' !"))

            if vals.get('relation',False) and not self.pool['ir.model'].search(cr, user, [('model','=',vals['relation'])]):
                raise except_orm(_('Error'), _("Model %s does not exist!") % vals['relation'])

            if vals['model'] in self.pool:
                self.pool[vals['model']].__init__(self.pool, cr)
                #Added context to _auto_init for special treatment to custom field for select_level
                ctx = dict(context,
                    field_name=vals['name'],
                    field_state='manual',
                    select=vals.get('select_level', '0'),
                    update_custom_fields=True)
                self.pool[vals['model']]._auto_init(cr, ctx)
                self.pool[vals['model']]._auto_end(cr, ctx) # actually create FKs!
                openerp.modules.registry.RegistryManager.signal_registry_change(cr.dbname)

        return res

    def write(self, cr, user, ids, vals, context=None):
        if context is None:
            context = {}
        if context and context.get('manual',False):
            vals['state'] = 'manual'

        #For the moment renaming a sparse field or changing the storing system is not allowed. This may be done later
        if 'serialization_field_id' in vals or 'name' in vals:
            for field in self.browse(cr, user, ids, context=context):
                if 'serialization_field_id' in vals and field.serialization_field_id.id != vals['serialization_field_id']:
                    raise except_orm(_('Error!'),  _('Changing the storing system for field "%s" is not allowed.')%field.name)
                if field.serialization_field_id and (field.name != vals['name']):
                    raise except_orm(_('Error!'),  _('Renaming sparse field "%s" is not allowed')%field.name)

        column_rename = None # if set, *one* column can be renamed here
        models_patch = {}    # structs of (obj, [(field, prop, change_to),..])
                             # data to be updated on the orm model

        # static table of properties
        model_props = [ # (our-name, fields.prop, set_fn)
            ('field_description', 'string', tools.ustr),
            ('required', 'required', bool),
            ('readonly', 'readonly', bool),
            ('domain', '_domain', eval),
            ('size', 'size', int),
            ('on_delete', 'ondelete', str),
            ('translate', 'translate', bool),
            ('selectable', 'selectable', bool),
            ('select_level', 'select', int),
            ('selection', 'selection', eval),
            ]

        if vals and ids:
            checked_selection = False # need only check it once, so defer

            for item in self.browse(cr, user, ids, context=context):
                obj = self.pool.get(item.model)

                if item.state != 'manual':
                    raise except_orm(_('Error!'),
                        _('Properties of base fields cannot be altered in this manner! '
                          'Please modify them through Python code, '
                          'preferably through a custom addon!'))

                if item.ttype == 'selection' and 'selection' in vals \
                        and not checked_selection:
                    self._check_selection(cr, user, vals['selection'], context=context)
                    checked_selection = True

                final_name = item.name
                if 'name' in vals and vals['name'] != item.name:
                    # We need to rename the column
                    if column_rename:
                        raise except_orm(_('Error!'), _('Can only rename one column at a time!'))
                    if vals['name'] in obj._columns:
                        raise except_orm(_('Error!'), _('Cannot rename column to %s, because that column already exists!') % vals['name'])
                    if vals.get('state', 'base') == 'manual' and not vals['name'].startswith('x_'):
                        raise except_orm(_('Error!'), _('New column name must still start with x_ , because it is a custom field!'))
                    if '\'' in vals['name'] or '"' in vals['name'] or ';' in vals['name']:
                        raise ValueError('Invalid character in column name')
                    column_rename = (obj, (obj._table, item.name, vals['name']))
                    final_name = vals['name']

                if 'model_id' in vals and vals['model_id'] != item.model_id:
                    raise except_orm(_("Error!"), _("Changing the model of a field is forbidden!"))

                if 'ttype' in vals and vals['ttype'] != item.ttype:
                    raise except_orm(_("Error!"), _("Changing the type of a column is not yet supported. "
                                "Please drop it and create it again!"))

                # We don't check the 'state', because it might come from the context
                # (thus be set for multiple fields) and will be ignored anyway.
                if obj is not None:
                    models_patch.setdefault(obj._name, (obj,[]))
                    # find out which properties (per model) we need to update
                    for field_name, field_property, set_fn in model_props:
                        if field_name in vals:
                            property_value = set_fn(vals[field_name])
                            if getattr(obj._columns[item.name], field_property) != property_value:
                                models_patch[obj._name][1].append((final_name, field_property, property_value))
                        # our dict is ready here, but no properties are changed so far

        # These shall never be written (modified)
        for column_name in ('model_id', 'model', 'state'):
            if column_name in vals:
                del vals[column_name]

        res = super(ir_model_fields,self).write(cr, user, ids, vals, context=context)

        if column_rename:
            cr.execute('ALTER TABLE "%s" RENAME COLUMN "%s" TO "%s"' % column_rename[1])
            # This is VERY risky, but let us have this feature:
            # we want to change the key of column in obj._columns dict
            col = column_rename[0]._columns.pop(column_rename[1][1]) # take object out, w/o copy
            column_rename[0]._columns[column_rename[1][2]] = col

        if models_patch:
            # We have to update _columns of the model(s) and then call their
            # _auto_init to sync the db with the model. Hopefully, since write()
            # was called earlier, they will be in-sync before the _auto_init.
            # Anything we don't update in _columns now will be reset from
            # the model into ir.model.fields (db).
            ctx = dict(context, select=vals.get('select_level', '0'),
                       update_custom_fields=True)

            for __, patch_struct in models_patch.items():
                obj = patch_struct[0]
                for col_name, col_prop, val in patch_struct[1]:
                    setattr(obj._columns[col_name], col_prop, val)
                obj._auto_init(cr, ctx)
                obj._auto_end(cr, ctx) # actually create FKs!
            openerp.modules.registry.RegistryManager.signal_registry_change(cr.dbname)
        return res

class ir_model_constraint(Model):
    """
    This model tracks PostgreSQL foreign keys and constraints used by OpenERP
    models.
    """
    _name = 'ir.model.constraint'
    _columns = {
        'name': fields.char('Constraint', required=True, select=1,
            help="PostgreSQL constraint or foreign key name."),
        'model': fields.many2one('ir.model', string='Model',
            required=True, select=1),
        'module': fields.many2one('ir.module.module', string='Module',
            required=True, select=1),
        'type': fields.char('Constraint Type', required=True, size=1, select=1,
            help="Type of the constraint: `f` for a foreign key, "
                "`u` for other constraints."),
        'date_update': fields.datetime('Update Date'),
        'date_init': fields.datetime('Initialization Date')
    }

    _sql_constraints = [
        ('module_name_uniq', 'unique(name, module)',
            'Constraints with the same name are unique per module.'),
    ]

    def _module_data_uninstall(self, cr, uid, ids, context=None):
        """
        Delete PostgreSQL foreign keys and constraints tracked by this model.
        """ 

        if uid != SUPERUSER_ID and not self.pool['ir.model.access'].check_groups(cr, uid, "base.group_system"):
            raise except_orm(_('Permission Denied'), (_('Administrator access is required to uninstall a module')))

        context = dict(context or {})

        ids_set = set(ids)
        ids.sort()
        ids.reverse()
        for data in self.browse(cr, uid, ids, context):
            model = data.model.model
            model_obj = self.pool[model]
            name = openerp.tools.ustr(data.name)
            typ = data.type

            # double-check we are really going to delete all the owners of this schema element
            cr.execute("""SELECT id from ir_model_constraint where name=%s""", (data.name,))
            external_ids = [x[0] for x in cr.fetchall()]
            if set(external_ids)-ids_set:
                # as installed modules have defined this element we must not delete it!
                continue

            if typ == 'f':
                # test if FK exists on this table (it could be on a related m2m table, in which case we ignore it)
                cr.execute("""SELECT 1 from pg_constraint cs JOIN pg_class cl ON (cs.conrelid = cl.oid)
                              WHERE cs.contype=%s and cs.conname=%s and cl.relname=%s""", ('f', name, model_obj._table))
                if cr.fetchone():
                    cr.execute('ALTER TABLE "%s" DROP CONSTRAINT "%s"' % (model_obj._table, name),)
                    _logger.info('Dropped FK CONSTRAINT %s@%s', name, model)

            if typ == 'u':
                # test if constraint exists
                cr.execute("""SELECT 1 from pg_constraint cs JOIN pg_class cl ON (cs.conrelid = cl.oid)
                              WHERE cs.contype=%s and cs.conname=%s and cl.relname=%s""", ('u', name, model_obj._table))
                if cr.fetchone():
                    cr.execute('ALTER TABLE "%s" DROP CONSTRAINT "%s"' % (model_obj._table, name),)
                    _logger.info('Dropped CONSTRAINT %s@%s', name, model)

        self.unlink(cr, uid, ids, context)

class ir_model_relation(Model):
    """
    This model tracks PostgreSQL tables used to implement OpenERP many2many
    relations.
    """
    _name = 'ir.model.relation'
    _columns = {
        'name': fields.char('Relation Name', required=True, select=1,
            help="PostgreSQL table name implementing a many2many relation."),
        'model': fields.many2one('ir.model', string='Model',
            required=True, select=1),
        'module': fields.many2one('ir.module.module', string='Module',
            required=True, select=1),
        'date_update': fields.datetime('Update Date'),
        'date_init': fields.datetime('Initialization Date')
    }

    def _module_data_uninstall(self, cr, uid, ids, context=None):
        """
        Delete PostgreSQL many2many relations tracked by this model.
        """ 

        if uid != SUPERUSER_ID and not self.pool['ir.model.access'].check_groups(cr, uid, "base.group_system"):
            raise except_orm(_('Permission Denied'), (_('Administrator access is required to uninstall a module')))

        ids_set = set(ids)
        to_drop_table = []
        ids.sort()
        ids.reverse()
        for data in self.browse(cr, uid, ids, context):
            model = data.model
            name = openerp.tools.ustr(data.name)

            # double-check we are really going to delete all the owners of this schema element
            cr.execute("""SELECT id from ir_model_relation where name = %s""", (data.name,))
            external_ids = [x[0] for x in cr.fetchall()]
            if set(external_ids)-ids_set:
                # as installed modules have defined this element we must not delete it!
                continue

            cr.execute("SELECT 1 FROM information_schema.tables WHERE table_name=%s", (name,))
            if cr.fetchone() and not name in to_drop_table:
                to_drop_table.append(name)

        self.unlink(cr, uid, ids, context)

        # drop m2m relation tables
        for table in to_drop_table:
            cr.execute('DROP TABLE %s CASCADE'% table,)
            _logger.info('Dropped table %s', table)

        cr.commit()

class ir_model_access(osv.osv):
    _name = 'ir.model.access'
    _columns = {
        'name': fields.char('Name', required=True, select=True),
        'active': fields.boolean('Active', help='If you uncheck the active field, it will disable the ACL without deleting it (if you delete a native ACL, it will be re-created when you reload the module.'),
        'model_id': fields.many2one('ir.model', 'Object', required=True, domain=[('osv_memory','=', False)], select=True, ondelete='cascade'),
        'group_id': fields.many2one('res.groups', 'Group', ondelete='cascade', select=True),
        'perm_read': fields.boolean('Read Access'),
        'perm_write': fields.boolean('Write Access'),
        'perm_create': fields.boolean('Create Access'),
        'perm_unlink': fields.boolean('Delete Access'),
    }
    _defaults = {
        'active': True,
    }

    def check_groups(self, cr, uid, group):
        grouparr  = group.split('.')
        if not grouparr:
            return False
        cr.execute("select 1 from res_groups_users_rel where uid=%s and gid IN (select res_id from ir_model_data where module=%s and name=%s)", (uid, grouparr[0], grouparr[1],))
        return bool(cr.fetchone())

    def check_group(self, cr, uid, model, mode, group_ids):
        """ Check if a specific group has the access mode to the specified model"""
        assert mode in ['read','write','create','unlink'], 'Invalid access mode'

        if isinstance(model, browse_record):
            assert model._table_name == 'ir.model', 'Invalid model object'
            model_name = model.name
        else:
            model_name = model

        if isinstance(group_ids, (int, long)):
            group_ids = [group_ids]
        for group_id in group_ids:
            cr.execute("SELECT perm_" + mode + " "
                   "  FROM ir_model_access a "
                   "  JOIN ir_model m ON (m.id = a.model_id) "
                   " WHERE m.model = %s AND a.active IS True "
                   " AND a.group_id = %s", (model_name, group_id)
                   )
            r = cr.fetchone()
            if r is None:
                cr.execute("SELECT perm_" + mode + " "
                       "  FROM ir_model_access a "
                       "  JOIN ir_model m ON (m.id = a.model_id) "
                       " WHERE m.model = %s AND a.active IS True "
                       " AND a.group_id IS NULL", (model_name, )
                       )
                r = cr.fetchone()

            access = bool(r and r[0])
            if access:
                return True
        # pass no groups -> no access
        return False

    def group_names_with_access(self, cr, model_name, access_mode):
        """Returns the names of visible groups which have been granted ``access_mode`` on
           the model ``model_name``.
           :rtype: list
        """
        assert access_mode in ['read','write','create','unlink'], 'Invalid access mode: %s' % access_mode
        cr.execute('''SELECT
                        c.name, g.name
                      FROM
                        ir_model_access a
                        JOIN ir_model m ON (a.model_id=m.id)
                        JOIN res_groups g ON (a.group_id=g.id)
                        LEFT JOIN ir_module_category c ON (c.id=g.category_id)
                      WHERE
                        m.model=%s AND
                        a.active IS True AND
                        a.perm_''' + access_mode, (model_name,))
        return [('%s/%s' % x) if x[0] else x[1] for x in cr.fetchall()]

    @tools.ormcache()
    def check(self, cr, uid, model, mode='read', raise_exception=True, context=None):
        if uid==1:
            # User root have all accesses
            # TODO: exclude xml-rpc requests
            return True

        assert mode in ['read','write','create','unlink'], 'Invalid access mode'

        if isinstance(model, browse_record):
            assert model._table_name == 'ir.model', 'Invalid model object'
            model_name = model.model
        else:
            model_name = model

        # TransientModel records have no access rights, only an implicit access rule
        if model_name not in self.pool:
            _logger.error('Missing model %s' % (model_name, ))
        elif self.pool[model_name].is_transient():
            return True

        # We check if a specific rule exists
        cr.execute('SELECT MAX(CASE WHEN perm_' + mode + ' THEN 1 ELSE 0 END) '
                   '  FROM ir_model_access a '
                   '  JOIN ir_model m ON (m.id = a.model_id) '
                   '  JOIN res_groups_users_rel gu ON (gu.gid = a.group_id) '
                   ' WHERE m.model = %s '
                   '   AND gu.uid = %s '
                   '   AND a.active IS True '
                   , (model_name, uid,)
                   )
        r = cr.fetchone()[0]

        if r is None:
            # there is no specific rule. We check the generic rule
            cr.execute('SELECT MAX(CASE WHEN perm_' + mode + ' THEN 1 ELSE 0 END) '
                       '  FROM ir_model_access a '
                       '  JOIN ir_model m ON (m.id = a.model_id) '
                       ' WHERE a.group_id IS NULL '
                       '   AND m.model = %s '
                       '   AND a.active IS True '
                       , (model_name,)
                       )
            r = cr.fetchone()[0]

        if not r and raise_exception:
            groups = '\n\t'.join('- %s' % g for g in self.group_names_with_access(cr, model_name, mode))
            msg_heads = {
                # Messages are declared in extenso so they are properly exported in translation terms
                'read': _("Sorry, you are not allowed to access this document."),
                'write':  _("Sorry, you are not allowed to modify this document."),
                'create': _("Sorry, you are not allowed to create this kind of document."),
                'unlink': _("Sorry, you are not allowed to delete this document."),
            }
            if groups:
                msg_tail = _("Only users with the following access level are currently allowed to do that") + ":\n%s\n\n(" + _("Document model") + ": %s)"
                msg_params = (groups, model_name)
            else:
                msg_tail = _("Please contact your system administrator if you think this is an error.") + "\n\n(" + _("Document model") + ": %s)"
                msg_params = (model_name,)
            _logger.warning('Access Denied by ACLs for operation: %s, uid: %s, model: %s', mode, uid, model_name)
            msg = '%s %s' % (msg_heads[mode], msg_tail)
            raise openerp.exceptions.AccessError(msg % msg_params)
        return r or False

    __cache_clearing_methods = []

    def register_cache_clearing_method(self, model, method):
        self.__cache_clearing_methods.append((model, method))

    def unregister_cache_clearing_method(self, model, method):
        try:
            i = self.__cache_clearing_methods.index((model, method))
            del self.__cache_clearing_methods[i]
        except ValueError:
            pass

    def call_cache_clearing_methods(self, cr):
        self.check.clear_cache(self)    # clear the cache of check function
        for model, method in self.__cache_clearing_methods:
            if model in self.pool:
                getattr(self.pool[model], method)()

    #
    # Check rights on actions
    #
    def write(self, cr, uid, *args, **argv):
        self.call_cache_clearing_methods(cr)
        res = super(ir_model_access, self).write(cr, uid, *args, **argv)
        return res

    def create(self, cr, uid, *args, **argv):
        self.call_cache_clearing_methods(cr)
        res = super(ir_model_access, self).create(cr, uid, *args, **argv)
        return res

    def unlink(self, cr, uid, *args, **argv):
        self.call_cache_clearing_methods(cr)
        res = super(ir_model_access, self).unlink(cr, uid, *args, **argv)
        return res

class ir_model_data(osv.osv):
    """Holds external identifier keys for records in the database.
       This has two main uses:

           * allows easy data integration with third-party systems,
             making import/export/sync of data possible, as records
             can be uniquely identified across multiple systems
           * allows tracking the origin of data installed by OpenERP
             modules themselves, thus making it possible to later
             update them seamlessly.
    """
    _name = 'ir.model.data'
    _order = 'module,model,name'
    def _display_name_get(self, cr, uid, ids, prop, unknow_none, context=None):
        result = {}
        result2 = {}
        for res in self.browse(cr, uid, ids, context=context):
            if res.id:
                result.setdefault(res.model, {})
                result[res.model][res.res_id] = res.id
            result2[res.id] = False

        for model in result:
            try:
                r = dict(self.pool[model].name_get(cr, uid, result[model].keys(), context=context))
                for key,val in result[model].items():
                    result2[val] = r.get(key, False)
            except:
                # some object have no valid name_get implemented, we accept this
                pass
        return result2

    def _complete_name_get(self, cr, uid, ids, prop, unknow_none, context=None):
        result = {}
        for res in self.browse(cr, uid, ids, context=context):
            result[res.id] = (res.module and (res.module + '.') or '')+res.name
        return result

    _columns = {
        'name': fields.char('External Identifier', required=True, select=1,
                            help="External Key/Identifier that can be used for "
                                 "data integration with third-party systems"),
        'complete_name': fields.function(_complete_name_get, type='char', string='Complete ID'),
        'display_name': fields.function(_display_name_get, type='char', string='Record Name'),
        'model': fields.char('Model Name', required=True, select=1),
        'module': fields.char('Module', required=True, select=1),
        'res_id': fields.integer('Record ID', select=1,
                                 help="ID of the target record in the database"),
        'noupdate': fields.boolean('Non Updatable'),
        'date_update': fields.datetime('Update Date'),
        'date_init': fields.datetime('Init Date')
    }
    _defaults = {
        'date_init': lambda *a: time.strftime('%Y-%m-%d %H:%M:%S'),
        'date_update': lambda *a: time.strftime('%Y-%m-%d %H:%M:%S'),
        'noupdate': False,
        'module': ''
    }
    _sql_constraints = [
        ('module_name_uniq', 'unique(name, module)', 'You cannot have multiple records with the same external ID in the same module!'),
    ]

    def __init__(self, pool, cr):
        osv.osv.__init__(self, pool, cr)
        self.doinit = True
        # also stored in pool to avoid being discarded along with this osv instance
        if getattr(pool, 'model_data_reference_ids', None) is None:
            self.pool.model_data_reference_ids = {}

        self.loads = self.pool.model_data_reference_ids

    def _auto_init(self, cr, context=None):
        super(ir_model_data, self)._auto_init(cr, context)
        cr.execute('SELECT indexname FROM pg_indexes WHERE indexname = \'ir_model_data_module_name_index\'')
        if not cr.fetchone():
            cr.execute('CREATE INDEX ir_model_data_module_name_index ON ir_model_data (module, name)')

    # NEW V8 API
    @tools.ormcache(skiparg=3)
    def xmlid_lookup(self, cr, uid, xmlid):
        """Low level xmlid lookup
        Return (id, res_model, res_id) or raise ValueError if not found
        """
        module, name = xmlid.split('.', 1)
        ids = self.search(cr, uid, [('module','=',module), ('name','=', name)])
        if not ids:
            raise ValueError('External ID not found in the system: %s' % (xmlid))
        # the sql constraints ensure us we have only one result
        res = self.read(cr, uid, ids[0], ['model', 'res_id'])
        if not res['res_id']:
            raise ValueError('External ID not found in the system: %s' % (xmlid))
        return ids[0], res['model'], res['res_id']
    
    def xmlid_to_res_model_res_id(self, cr, uid, xmlid, raise_if_not_found=False):
        """ Return (res_model, res_id)"""
        try:
            return self.xmlid_lookup(cr, uid, xmlid)[1:3]
        except ValueError:
            if raise_if_not_found:
                raise
            return (False, False)

    def xmlid_to_res_id(self, cr, uid, xmlid, raise_if_not_found=False):
        """ Returns res_id """
        return self.xmlid_to_res_model_res_id(cr, uid, xmlid, raise_if_not_found)[1]

    def xmlid_to_object(self, cr, uid, xmlid, raise_if_not_found=False, context=None):
        """ Return a browse_record
        if not found and raise_if_not_found is True return the browse_null
        """ 
        t = self.xmlid_to_res_model_res_id(cr, uid, xmlid, raise_if_not_found)
        res_model, res_id = t

        if res_model and res_id:
            record = self.pool[res_model].browse(cr, uid, res_id, context=context)
            if record.exists():
                return record
            if raise_if_not_found:
                raise ValueError('No record found for unique ID %s. It may have been deleted.' % (xml_id))
        return browse_null()

    # OLD API
    def _get_id(self, cr, uid, module, xml_id):
        """Returns the id of the ir.model.data record corresponding to a given module and xml_id (cached) or raise a ValueError if not found"""
        return self.xmlid_lookup(cr, uid, "%s.%s" % (module, xml_id))[0]

    def get_object_reference(self, cr, uid, module, xml_id):
        """Returns (model, res_id) corresponding to a given module and xml_id (cached) or raise ValueError if not found"""
        return self.xmlid_lookup(cr, uid, "%s.%s" % (module, xml_id))[1:3]

    def check_object_reference(self, cr, uid, module, xml_id, raise_on_access_error=False):
        """Returns (model, res_id) corresponding to a given module and xml_id (cached), if and only if the user has the necessary access rights
        to see that object, otherwise raise a ValueError if raise_on_access_error is True or returns a tuple (model found, False)"""
        model, res_id = self.get_object_reference(cr, uid, module, xml_id)
        #search on id found in result to check if current user has read access right
        check_right = self.pool.get(model).search(cr, uid, [('id', '=', res_id)])
        if check_right:
            return model, res_id
        if raise_on_access_error:
            raise ValueError('Not enough access rights on the external ID: %s.%s' % (module, xml_id))
        return model, False

    def get_object(self, cr, uid, module, xml_id, context=None):
        """ Returns a browsable record for the given module name and xml_id.
            If not found, raise a ValueError or return a browse_null, depending
            on the value of `raise_exception`.
        """
        return self.xmlid_to_object(cr, uid, "%s.%s" % (module, xml_id), raise_if_not_found=True, context=context)

    def _update_dummy(self,cr, uid, model, module, xml_id=False, store=True):
        if not xml_id:
            return False
        try:
            id = self.read(cr, uid, [self._get_id(cr, uid, module, xml_id)], ['res_id'])[0]['res_id']
            self.loads[(module,xml_id)] = (model,id)
        except:
            id = False
        return id

    def clear_caches(self):
        """ Clears all orm caches on the object's methods

        :returns: itself
        """
        self.xmlid_lookup.clear_cache(self)
        return self

    def unlink(self, cr, uid, ids, context=None):
        """ Regular unlink method, but make sure to clear the caches. """
        self.clear_caches()
        return super(ir_model_data,self).unlink(cr, uid, ids, context=context)

    def _update(self,cr, uid, model, module, values, xml_id=False, store=True, noupdate=False, mode='init', res_id=False, context=None):
        model_obj = self.pool[model]
        if not context:
            context = {}
        # records created during module install should not display the messages of OpenChatter
        context = dict(context, install_mode=True)
        if xml_id and ('.' in xml_id):
            assert len(xml_id.split('.'))==2, _("'%s' contains too many dots. XML ids should not contain dots ! These are used to refer to other modules data, as in module.reference_id") % xml_id
            module, xml_id = xml_id.split('.')
        if (not xml_id) and (not self.doinit):
            return False
        action_id = False
        if xml_id:
            cr.execute('''SELECT imd.id, imd.res_id, md.id, imd.model, imd.noupdate
                          FROM ir_model_data imd LEFT JOIN %s md ON (imd.res_id = md.id)
                          WHERE imd.module=%%s AND imd.name=%%s''' % model_obj._table,
                          (module, xml_id))
            results = cr.fetchall()
            for imd_id2,res_id2,real_id2,real_model,noupdate_imd in results:
                # In update mode, do not update a record if it's ir.model.data is flagged as noupdate
                if mode == 'update' and noupdate_imd:
                    return res_id2
                if not real_id2:
                    self.clear_caches()
                    cr.execute('delete from ir_model_data where id=%s', (imd_id2,))
                    res_id = False
                else:
                    assert model == real_model, "External ID conflict, %s already refers to a `%s` record,"\
                        " you can't define a `%s` record with this ID." % (xml_id, real_model, model)
                    res_id,action_id = res_id2,imd_id2

        if action_id and res_id:
            model_obj.write(cr, uid, [res_id], values, context=context)
            self.write(cr, uid, [action_id], {
                'date_update': time.strftime('%Y-%m-%d %H:%M:%S'),
                },context=context)
        elif res_id:
            model_obj.write(cr, uid, [res_id], values, context=context)
            if xml_id:
                if model_obj._inherits:
                    for table in model_obj._inherits:
                        inherit_id = model_obj.browse(cr, uid,
                                res_id,context=context)[model_obj._inherits[table]]
                        self.create(cr, uid, {
                            'name': xml_id + '_' + table.replace('.', '_'),
                            'model': table,
                            'module': module,
                            'res_id': inherit_id.id,
                            'noupdate': noupdate,
                            },context=context)
                self.create(cr, uid, {
                    'name': xml_id,
                    'model': model,
                    'module':module,
                    'res_id':res_id,
                    'noupdate': noupdate,
                    },context=context)
        else:
            if mode=='init' or (mode=='update' and xml_id):
                res_id = model_obj.create(cr, uid, values, context=context)
                if xml_id:
                    if model_obj._inherits:
                        for table in model_obj._inherits:
                            inherit_id = model_obj.browse(cr, uid,
                                    res_id,context=context)[model_obj._inherits[table]]
                            self.create(cr, uid, {
                                'name': xml_id + '_' + table.replace('.', '_'),
                                'model': table,
                                'module': module,
                                'res_id': inherit_id.id,
                                'noupdate': noupdate,
                                },context=context)
                    self.create(cr, uid, {
                        'name': xml_id,
                        'model': model,
                        'module': module,
                        'res_id': res_id,
                        'noupdate': noupdate
                        },context=context)
        if xml_id and res_id:
            self.loads[(module, xml_id)] = (model, res_id)
            for table, inherit_field in model_obj._inherits.iteritems():
                inherit_id = model_obj.read(cr, uid, res_id,
                        [inherit_field])[inherit_field]
                self.loads[(module, xml_id + '_' + table.replace('.', '_'))] = (table, inherit_id)
        return res_id

    def ir_set(self, cr, uid, key, key2, name, models, value, replace=True, isobject=False, meta=None, xml_id=False):
        if isinstance(models[0], (list, tuple)):
            model,res_id = models[0]
        else:
            res_id=None
            model = models[0]

        if res_id:
            where = ' and res_id=%s' % (res_id,)
        else:
            where = ' and (res_id is null)'

        if key2:
            where += ' and key2=\'%s\'' % (key2,)
        else:
            where += ' and (key2 is null)'

        cr.execute('select * from ir_values where model=%s and key=%s and name=%s'+where,(model, key, name))
        res = cr.fetchone()
        if not res:
            ir_values_obj = openerp.registry(cr.dbname)['ir.values']
            ir_values_obj.set(cr, uid, key, key2, name, models, value, replace, isobject, meta)
        elif xml_id:
            cr.execute('UPDATE ir_values set value=%s WHERE model=%s and key=%s and name=%s'+where,(value, model, key, name))
        return True

    def _module_data_uninstall(self, cr, uid, modules_to_remove, context=None):
        """Deletes all the records referenced by the ir.model.data entries
        ``ids`` along with their corresponding database backed (including
        dropping tables, columns, FKs, etc, as long as there is no other
        ir.model.data entry holding a reference to them (which indicates that
        they are still owned by another module). 
        Attempts to perform the deletion in an appropriate order to maximize
        the chance of gracefully deleting all records.
        This step is performed as part of the full uninstallation of a module.
        """ 

        ids = self.search(cr, uid, [('module', 'in', modules_to_remove)])

        if uid != 1 and not self.pool['ir.model.access'].check_groups(cr, uid, "base.group_system"):
            raise except_orm(_('Permission Denied'), (_('Administrator access is required to uninstall a module')))

        context = dict(context or {})
        context[MODULE_UNINSTALL_FLAG] = True # enable model/field deletion

        ids_set = set(ids)
        wkf_todo = []
        to_unlink = []
        ids.sort()
        ids.reverse()
        for data in self.browse(cr, uid, ids, context):
            model = data.model
            res_id = data.res_id

            pair_to_unlink = (model, res_id)
            if pair_to_unlink not in to_unlink:
                to_unlink.append(pair_to_unlink)

            if model == 'workflow.activity':
                # Special treatment for workflow activities: temporarily revert their
                # incoming transition and trigger an update to force all workflow items
                # to move out before deleting them
                cr.execute('select res_type,res_id from wkf_instance where id IN (select inst_id from wkf_workitem where act_id=%s)', (res_id,))
                wkf_todo.extend(cr.fetchall())
                cr.execute("update wkf_transition set condition='True', group_id=NULL, signal=NULL,act_to=act_from,act_from=%s where act_to=%s", (res_id,res_id))

        for model,res_id in wkf_todo:
            try:
                openerp.workflow.trg_write(uid, model, res_id, cr)
            except Exception:
                _logger.info('Unable to force processing of workflow for item %s@%s in order to leave activity to be deleted', res_id, model, exc_info=True)

        def unlink_if_refcount(to_unlink):
            for model, res_id in to_unlink:
                external_ids = self.search(cr, uid, [('model', '=', model),('res_id', '=', res_id)])
                if set(external_ids)-ids_set:
                    # if other modules have defined this record, we must not delete it
                    continue
                if model == 'ir.model.fields':
                    # Don't remove the LOG_ACCESS_COLUMNS unless _log_access
                    # has been turned off on the model.
                    field = self.pool[model].browse(cr, uid, [res_id], context=context)[0]
                    if not field.exists():
                        _logger.info('Deleting orphan external_ids %s', external_ids)
                        self.unlink(cr, uid, external_ids)
                        continue
                    if field.name in openerp.osv.orm.LOG_ACCESS_COLUMNS and self.pool[field.model]._log_access:
                        continue
                    if field.name == 'id':
                        continue
                _logger.info('Deleting %s@%s', res_id, model)
                try:
                    cr.execute('SAVEPOINT record_unlink_save')
                    self.pool[model].unlink(cr, uid, [res_id], context=context)
                except Exception:
                    _logger.info('Unable to delete %s@%s', res_id, model, exc_info=True)
                    cr.execute('ROLLBACK TO SAVEPOINT record_unlink_save')
                else:
                    cr.execute('RELEASE SAVEPOINT record_unlink_save')

        # Remove non-model records first, then model fields, and finish with models
        unlink_if_refcount((model, res_id) for model, res_id in to_unlink
                                if model not in ('ir.model','ir.model.fields'))
        unlink_if_refcount((model, res_id) for model, res_id in to_unlink
                                if model == 'ir.model.fields')

        ir_model_relation = self.pool['ir.model.relation']
        ir_module_module = self.pool['ir.module.module']
        modules_to_remove_ids = ir_module_module.search(cr, uid, [('name', 'in', modules_to_remove)])
        relation_ids = ir_model_relation.search(cr, uid, [('module', 'in', modules_to_remove_ids)])
        ir_model_relation._module_data_uninstall(cr, uid, relation_ids, context)

        unlink_if_refcount((model, res_id) for model, res_id in to_unlink
                                if model == 'ir.model')

        cr.commit()

        self.unlink(cr, uid, ids, context)

    def _process_end(self, cr, uid, modules):
        """ Clear records removed from updated module data.
        This method is called at the end of the module loading process.
        It is meant to removed records that are no longer present in the
        updated data. Such records are recognised as the one with an xml id
        and a module in ir_model_data and noupdate set to false, but not
        present in self.loads.
        """
        if not modules:
            return True
        to_unlink = []
        cr.execute("""SELECT id,name,model,res_id,module FROM ir_model_data
                      WHERE module IN %s AND res_id IS NOT NULL AND noupdate=%s ORDER BY id DESC""",
                      (tuple(modules), False))
        for (id, name, model, res_id, module) in cr.fetchall():
            if (module,name) not in self.loads:
                to_unlink.append((model,res_id))
        if not config.get('import_partial'):
            for (model, res_id) in to_unlink:
                if model in self.pool:
                    _logger.info('Deleting %s@%s', res_id, model)
                    self.pool[model].unlink(cr, uid, [res_id])

class wizard_model_menu(osv.osv_memory):
    _name = 'wizard.ir.model.menu.create'
    _columns = {
        'menu_id': fields.many2one('ir.ui.menu', 'Parent Menu', required=True),
        'name': fields.char('Menu Name', size=64, required=True),
    }

    def menu_create(self, cr, uid, ids, context=None):
        if not context:
            context = {}
        model_pool = self.pool.get('ir.model')
        for menu in self.browse(cr, uid, ids, context):
            model = model_pool.browse(cr, uid, context.get('model_id'), context=context)
            val = {
                'name': menu.name,
                'res_model': model.model,
                'view_type': 'form',
                'view_mode': 'tree,form'
            }
            action_id = self.pool.get('ir.actions.act_window').create(cr, uid, val)
            self.pool.get('ir.ui.menu').create(cr, uid, {
                'name': menu.name,
                'parent_id': menu.menu_id.id,
                'action': 'ir.actions.act_window,%d' % (action_id,),
                'icon': 'STOCK_INDENT'
            }, context)
        return {'type':'ir.actions.act_window_close'}

# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: