This file is indexed.

/usr/lib/python2.7/dist-packages/sqlobject/joins.py is in python-sqlobject 1.5.2-1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  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
from itertools import count
import classregistry
import events
import styles
import sqlbuilder
from styles import capword

__all__ = ['MultipleJoin', 'SQLMultipleJoin', 'RelatedJoin', 'SQLRelatedJoin',
           'SingleJoin', 'ManyToMany', 'OneToMany']

creationOrder = count()
NoDefault = sqlbuilder.NoDefault

def getID(obj):
    try:
        return obj.id
    except AttributeError:
        return int(obj)

class Join(object):

    def __init__(self, otherClass=None, **kw):
        kw['otherClass'] = otherClass
        self.kw = kw
        self._joinMethodName = self.kw.pop('joinMethodName', None)
        self.creationOrder = creationOrder.next()

    def _set_joinMethodName(self, value):
        assert self._joinMethodName == value or self._joinMethodName is None, "You have already given an explicit joinMethodName (%s), and you are now setting it to %s" % (self._joinMethodName, value)
        self._joinMethodName = value

    def _get_joinMethodName(self):
        return self._joinMethodName

    joinMethodName = property(_get_joinMethodName, _set_joinMethodName)
    name = joinMethodName

    def withClass(self, soClass):
        if 'joinMethodName' in self.kw:
            self._joinMethodName = self.kw['joinMethodName']
            del self.kw['joinMethodName']
        return self.baseClass(creationOrder=self.creationOrder,
                              soClass=soClass,
                              joinDef=self,
                              joinMethodName=self._joinMethodName,
                              **self.kw)

# A join is separate from a foreign key, i.e., it is
# many-to-many, or one-to-many where the *other* class
# has the foreign key.
class SOJoin(object):

    def __init__(self,
                 creationOrder,
                 soClass=None,
                 otherClass=None,
                 joinColumn=None,
                 joinMethodName=None,
                 orderBy=NoDefault,
                 joinDef=None):
        self.creationOrder = creationOrder
        self.soClass = soClass
        self.joinDef = joinDef
        self.otherClassName = otherClass
        classregistry.registry(soClass.sqlmeta.registry).addClassCallback(
            otherClass, self._setOtherClass)
        self.joinColumn = joinColumn
        self.joinMethodName = joinMethodName
        self._orderBy = orderBy
        if not self.joinColumn:
            # Here we set up the basic join, which is
            # one-to-many, where the other class points to
            # us.
            self.joinColumn = styles.getStyle(
                self.soClass).tableReference(self.soClass.sqlmeta.table)

    def orderBy(self):
        if self._orderBy is NoDefault:
            self._orderBy = self.otherClass.sqlmeta.defaultOrder
        return self._orderBy
    orderBy = property(orderBy)

    def _setOtherClass(self, cls):
        self.otherClass = cls

    def hasIntermediateTable(self):
        return False

    def _applyOrderBy(self, results, defaultSortClass):
        if self.orderBy is not None:
            results.sort(sorter(self.orderBy))
        return results

def sorter(orderBy):
    if isinstance(orderBy, (tuple, list)):
        if len(orderBy) == 1:
            orderBy = orderBy[0]
        else:
            fhead = sorter(orderBy[0])
            frest = sorter(orderBy[1:])
            return lambda a, b, fhead=fhead, frest=frest: fhead(a, b) or frest(a, b)
    if isinstance(orderBy, sqlbuilder.DESC) \
       and isinstance(orderBy.expr, sqlbuilder.SQLObjectField):
        orderBy = '-' + orderBy.expr.original
    elif isinstance(orderBy, sqlbuilder.SQLObjectField):
        orderBy = orderBy.original
    # @@: but we don't handle more complex expressions for orderings
    if orderBy.startswith('-'):
        orderBy = orderBy[1:]
        reverse = True
    else:
        reverse = False

    def cmper(a, b, attr=orderBy, rev=reverse):
        a = getattr(a, attr)
        b = getattr(b, attr)
        if rev:
            a, b = b, a
        if a is None:
            if b is None:
                return 0
            return -1
        if b is None:
            return 1
        return cmp(a, b)
    return cmper

# This is a one-to-many
class SOMultipleJoin(SOJoin):

    def __init__(self, addRemoveName=None, **kw):
        # addRemovePrefix is something like @@
        SOJoin.__init__(self, **kw)

        # Here we generate the method names
        if not self.joinMethodName:
            name = self.otherClassName[0].lower() + self.otherClassName[1:]
            if name.endswith('s'):
                name = name + "es"
            else:
                name = name + "s"
            self.joinMethodName = name
        if addRemoveName:
            self.addRemoveName = addRemoveName
        else:
            self.addRemoveName = capword(self.otherClassName)

    def performJoin(self, inst):
        ids = inst._connection._SO_selectJoin(
            self.otherClass,
            self.joinColumn,
            inst.id)
        if inst.sqlmeta._perConnection:
            conn = inst._connection
        else:
            conn = None
        return self._applyOrderBy([self.otherClass.get(id, conn) for (id,) in ids if id is not None], self.otherClass)

    def _dbNameToPythonName(self):
        for column in self.otherClass.sqlmeta.columns.values():
            if column.dbName == self.joinColumn:
                return column.name
        return self.soClass.sqlmeta.style.dbColumnToPythonAttr(self.joinColumn)

class MultipleJoin(Join):
    baseClass = SOMultipleJoin

class SOSQLMultipleJoin(SOMultipleJoin):

    def performJoin(self, inst):
        if inst.sqlmeta._perConnection:
            conn = inst._connection
        else:
            conn = None
        pythonColumn = self._dbNameToPythonName()
        results = self.otherClass.select(getattr(self.otherClass.q, pythonColumn) == inst.id, connection=conn)
        return results.orderBy(self.orderBy)

class SQLMultipleJoin(Join):
    baseClass = SOSQLMultipleJoin

# This is a many-to-many join, with an intermediary table
class SORelatedJoin(SOMultipleJoin):

    def __init__(self,
                 otherColumn=None,
                 intermediateTable=None,
                 createRelatedTable=True,
                 **kw):
        self.intermediateTable = intermediateTable
        self.otherColumn = otherColumn
        self.createRelatedTable = createRelatedTable
        SOMultipleJoin.__init__(self, **kw)
        classregistry.registry(
            self.soClass.sqlmeta.registry).addClassCallback(
            self.otherClassName, self._setOtherRelatedClass)

    def _setOtherRelatedClass(self, otherClass):
        if not self.intermediateTable:
            names = [self.soClass.sqlmeta.table,
                     otherClass.sqlmeta.table]
            names.sort()
            self.intermediateTable = '%s_%s' % (names[0], names[1])
        if not self.otherColumn:
            self.otherColumn = self.soClass.sqlmeta.style.tableReference(
                otherClass.sqlmeta.table)


    def hasIntermediateTable(self):
        return True

    def performJoin(self, inst):
        ids = inst._connection._SO_intermediateJoin(
            self.intermediateTable,
            self.otherColumn,
            self.joinColumn,
            inst.id)
        if inst.sqlmeta._perConnection:
            conn = inst._connection
        else:
            conn = None
        return self._applyOrderBy([self.otherClass.get(id, conn) for (id,) in ids if id is not None], self.otherClass)

    def remove(self, inst, other):
        inst._connection._SO_intermediateDelete(
            self.intermediateTable,
            self.joinColumn,
            getID(inst),
            self.otherColumn,
            getID(other))

    def add(self, inst, other):
        inst._connection._SO_intermediateInsert(
            self.intermediateTable,
            self.joinColumn,
            getID(inst),
            self.otherColumn,
            getID(other))

class RelatedJoin(MultipleJoin):
    baseClass = SORelatedJoin

# helper classes to SQLRelatedJoin
class OtherTableToJoin(sqlbuilder.SQLExpression):
    def __init__(self, otherTable, otherIdName, interTable, joinColumn):
        self.otherTable = otherTable
        self.otherIdName = otherIdName
        self.interTable = interTable
        self.joinColumn = joinColumn

    def tablesUsedImmediate(self):
        return [self.otherTable, self.interTable]

    def __sqlrepr__(self, db):
        return '%s.%s = %s.%s' % (self.otherTable, self.otherIdName, self.interTable, self.joinColumn)

class JoinToTable(sqlbuilder.SQLExpression):
    def __init__(self, table, idName, interTable, joinColumn):
        self.table = table
        self.idName = idName
        self.interTable = interTable
        self.joinColumn = joinColumn

    def tablesUsedImmediate(self):
        return [self.table, self.interTable]

    def __sqlrepr__(self, db):
        return '%s.%s = %s.%s' % (self.interTable, self.joinColumn, self.table, self.idName)

class TableToId(sqlbuilder.SQLExpression):
    def __init__(self, table, idName, idValue):
        self.table = table
        self.idName = idName
        self.idValue = idValue

    def tablesUsedImmediate(self):
        return [self.table]

    def __sqlrepr__(self, db):
        return '%s.%s = %s' % (self.table, self.idName, self.idValue)

class SOSQLRelatedJoin(SORelatedJoin):
    def performJoin(self, inst):
        if inst.sqlmeta._perConnection:
            conn = inst._connection
        else:
            conn = None
        results = self.otherClass.select(sqlbuilder.AND(
            OtherTableToJoin(
                self.otherClass.sqlmeta.table, self.otherClass.sqlmeta.idName,
                self.intermediateTable, self.otherColumn
            ),
            JoinToTable(
                self.soClass.sqlmeta.table, self.soClass.sqlmeta.idName,
                self.intermediateTable, self.joinColumn
            ),
            TableToId(self.soClass.sqlmeta.table, self.soClass.sqlmeta.idName, inst.id),
        ), clauseTables=(self.soClass.sqlmeta.table, self.otherClass.sqlmeta.table, self.intermediateTable),
        connection=conn)
        return results.orderBy(self.orderBy)

class SQLRelatedJoin(RelatedJoin):
    baseClass = SOSQLRelatedJoin

class SOSingleJoin(SOMultipleJoin):

    def __init__(self, **kw):
        self.makeDefault = kw.pop('makeDefault', False)
        SOMultipleJoin.__init__(self, **kw)

    def performJoin(self, inst):
        if inst.sqlmeta._perConnection:
            conn = inst._connection
        else:
            conn = None
        pythonColumn = self._dbNameToPythonName()
        results = self.otherClass.select(
            getattr(self.otherClass.q, pythonColumn) == inst.id,
            connection=conn
        )
        if results.count() == 0:
            if not self.makeDefault:
                return None
            else:
                kw = {self.soClass.sqlmeta.style.instanceIDAttrToAttr(pythonColumn): inst}
                return self.otherClass(**kw) # instanciating the otherClass with all
        else:
            return results[0]

class SingleJoin(Join):
    baseClass = SOSingleJoin



import boundattributes

class SOManyToMany(object):

    def __init__(self, soClass, name, join,
                 intermediateTable, joinColumn, otherColumn,
                 createJoinTable, **attrs):
        self.name = name
        self.intermediateTable = intermediateTable
        self.joinColumn = joinColumn
        self.otherColumn = otherColumn
        self.createJoinTable = createJoinTable
        self.soClass = self.otherClass = None
        for name, value in attrs.items():
            setattr(self, name, value)
        classregistry.registry(
            soClass.sqlmeta.registry).addClassCallback(
            join, self._setOtherClass)
        classregistry.registry(
            soClass.sqlmeta.registry).addClassCallback(
            soClass.__name__, self._setThisClass)

    def _setThisClass(self, soClass):
        self.soClass = soClass
        if self.soClass and self.otherClass:
            self._finishSet()

    def _setOtherClass(self, otherClass):
        self.otherClass = otherClass
        if self.soClass and self.otherClass:
            self._finishSet()

    def _finishSet(self):
        if self.intermediateTable is None:
            names = [self.soClass.sqlmeta.table,
                     self.otherClass.sqlmeta.table]
            names.sort()
            self.intermediateTable = '%s_%s' % (names[0], names[1])
        if not self.otherColumn:
            self.otherColumn = self.soClass.sqlmeta.style.tableReference(
                self.otherClass.sqlmeta.table)
        if not self.joinColumn:
            self.joinColumn = styles.getStyle(
                self.soClass).tableReference(self.soClass.sqlmeta.table)
        events.listen(self.event_CreateTableSignal,
                      self.soClass, events.CreateTableSignal)
        events.listen(self.event_CreateTableSignal,
                      self.otherClass, events.CreateTableSignal)
        self.clause = (
            (self.otherClass.q.id ==
             sqlbuilder.Field(self.intermediateTable, self.otherColumn))
            & (sqlbuilder.Field(self.intermediateTable, self.joinColumn)
               == self.soClass.q.id))

    def __get__(self, obj, type):
        if obj is None:
            return self
        query = (
            (self.otherClass.q.id ==
             sqlbuilder.Field(self.intermediateTable, self.otherColumn))
            & (sqlbuilder.Field(self.intermediateTable, self.joinColumn)
               == obj.id))
        select = self.otherClass.select(query)
        return _ManyToManySelectWrapper(obj, self, select)

    def event_CreateTableSignal(self, soClass, connection, extra_sql,
                                post_funcs):
        if self.createJoinTable:
            post_funcs.append(self.event_CreateTableSignalPost)

    def event_CreateTableSignalPost(self, soClass, connection):
        if connection.tableExists(self.intermediateTable):
            return
        connection._SO_createJoinTable(self)

class ManyToMany(boundattributes.BoundFactory):
    factory_class = SOManyToMany
    __restrict_attributes__ = (
        'join', 'intermediateTable',
        'joinColumn', 'otherColumn', 'createJoinTable')
    __unpackargs__ = ('join',)

    # Default values:
    intermediateTable = None
    joinColumn = None
    otherColumn = None
    createJoinTable = True

class _ManyToManySelectWrapper(object):

    def __init__(self, forObject, join, select):
        self.forObject = forObject
        self.join = join
        self.select = select

    def __getattr__(self, attr):
        # @@: This passes through private variable access too... should it?
        # Also magic methods, like __str__
        return getattr(self.select, attr)

    def __repr__(self):
        return '<%s for: %s>' % (self.__class__.__name__, repr(self.select))

    def __str__(self):
        return str(self.select)

    def __iter__(self):
        return iter(self.select)

    def __getitem__(self, key):
        return self.select[key]

    def add(self, obj):
        obj._connection._SO_intermediateInsert(
            self.join.intermediateTable,
            self.join.joinColumn,
            getID(self.forObject),
            self.join.otherColumn,
            getID(obj))

    def remove(self, obj):
        obj._connection._SO_intermediateDelete(
            self.join.intermediateTable,
            self.join.joinColumn,
            getID(self.forObject),
            self.join.otherColumn,
            getID(obj))

    def create(self, **kw):
        obj = self.join.otherClass(**kw)
        self.add(obj)
        return obj

class SOOneToMany(object):

    def __init__(self, soClass, name, join, joinColumn, **attrs):
        self.soClass = soClass
        self.name = name
        self.joinColumn = joinColumn
        for name, value in attrs.items():
            setattr(self, name, value)
        classregistry.registry(
            soClass.sqlmeta.registry).addClassCallback(
            join, self._setOtherClass)

    def _setOtherClass(self, otherClass):
        self.otherClass = otherClass
        if not self.joinColumn:
            self.joinColumn = styles.getStyle(
                self.soClass).tableReference(self.soClass.sqlmeta.table)
        self.clause = (
            sqlbuilder.Field(self.otherClass.sqlmeta.table, self.joinColumn)
            == self.soClass.q.id)

    def __get__(self, obj, type):
        if obj is None:
            return self
        query = (
            sqlbuilder.Field(self.otherClass.sqlmeta.table, self.joinColumn)
            == obj.id)
        select = self.otherClass.select(query)
        return _OneToManySelectWrapper(obj, self, select)

class OneToMany(boundattributes.BoundFactory):
    factory_class = SOOneToMany
    __restrict_attributes__ = (
        'join', 'joinColumn')
    __unpackargs__ = ('join',)

    # Default values:
    joinColumn = None

class _OneToManySelectWrapper(object):

    def __init__(self, forObject, join, select):
        self.forObject = forObject
        self.join = join
        self.select = select

    def __getattr__(self, attr):
        # @@: This passes through private variable access too... should it?
        # Also magic methods, like __str__
        return getattr(self.select, attr)

    def __repr__(self):
        return '<%s for: %s>' % (self.__class__.__name__, repr(self.select))

    def __str__(self):
        return str(self.select)

    def __iter__(self):
        return iter(self.select)

    def __getitem__(self, key):
        return self.select[key]

    def create(self, **kw):
        kw[self.join.joinColumn] = self.forObject.id
        return self.join.otherClass(**kw)