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
|
from sqlalchemy.testing import fixtures, eq_
from sqlalchemy.testing.schema import Table, Column
from sqlalchemy.orm import Bundle, Session
from sqlalchemy.testing import AssertsCompiledSQL
from sqlalchemy import Integer, select, ForeignKey, String, func
from sqlalchemy.orm import mapper, relationship, aliased
class BundleTest(fixtures.MappedTest, AssertsCompiledSQL):
__dialect__ = 'default'
run_inserts = 'once'
run_setup_mappers = 'once'
run_deletes = None
@classmethod
def define_tables(cls, metadata):
Table('data', metadata,
Column('id', Integer, primary_key=True,
test_needs_autoincrement=True),
Column('d1', String(10)),
Column('d2', String(10)),
Column('d3', String(10))
)
Table('other', metadata,
Column('id', Integer, primary_key=True, test_needs_autoincrement=True),
Column('data_id', ForeignKey('data.id')),
Column('o1', String(10))
)
@classmethod
def setup_classes(cls):
class Data(cls.Basic):
pass
class Other(cls.Basic):
pass
@classmethod
def setup_mappers(cls):
mapper(cls.classes.Data, cls.tables.data, properties={
'others': relationship(cls.classes.Other)
})
mapper(cls.classes.Other, cls.tables.other)
@classmethod
def insert_data(cls):
sess = Session()
sess.add_all([
cls.classes.Data(d1='d%dd1' % i, d2='d%dd2' % i, d3='d%dd3' % i,
others=[cls.classes.Other(o1="d%do%d" % (i, j)) for j in range(5)])
for i in range(10)
])
sess.commit()
def test_c_attr(self):
Data = self.classes.Data
b1 = Bundle('b1', Data.d1, Data.d2)
self.assert_compile(
select([b1.c.d1, b1.c.d2]),
"SELECT data.d1, data.d2 FROM data"
)
def test_result(self):
Data = self.classes.Data
sess = Session()
b1 = Bundle('b1', Data.d1, Data.d2)
eq_(
sess.query(b1).filter(b1.c.d1.between('d3d1', 'd5d1')).all(),
[(('d3d1', 'd3d2'),), (('d4d1', 'd4d2'),), (('d5d1', 'd5d2'),)]
)
def test_subclass(self):
Data = self.classes.Data
sess = Session()
class MyBundle(Bundle):
def create_row_processor(self, query, procs, labels):
def proc(row):
return dict(
zip(labels, (proc(row) for proc in procs))
)
return proc
b1 = MyBundle('b1', Data.d1, Data.d2)
eq_(
sess.query(b1).filter(b1.c.d1.between('d3d1', 'd5d1')).all(),
[({'d2': 'd3d2', 'd1': 'd3d1'},),
({'d2': 'd4d2', 'd1': 'd4d1'},),
({'d2': 'd5d2', 'd1': 'd5d1'},)]
)
def test_multi_bundle(self):
Data = self.classes.Data
Other = self.classes.Other
d1 = aliased(Data)
b1 = Bundle('b1', d1.d1, d1.d2)
b2 = Bundle('b2', Data.d1, Other.o1)
sess = Session()
q = sess.query(b1, b2).join(Data.others).join(d1, d1.id == Data.id).\
filter(b1.c.d1 == 'd3d1')
eq_(
q.all(),
[
(('d3d1', 'd3d2'), ('d3d1', 'd3o0')),
(('d3d1', 'd3d2'), ('d3d1', 'd3o1')),
(('d3d1', 'd3d2'), ('d3d1', 'd3o2')),
(('d3d1', 'd3d2'), ('d3d1', 'd3o3')),
(('d3d1', 'd3d2'), ('d3d1', 'd3o4'))]
)
def test_single_entity(self):
Data = self.classes.Data
sess = Session()
b1 = Bundle('b1', Data.d1, Data.d2, single_entity=True)
eq_(
sess.query(b1).
filter(b1.c.d1.between('d3d1', 'd5d1')).
all(),
[('d3d1', 'd3d2'), ('d4d1', 'd4d2'), ('d5d1', 'd5d2')]
)
def test_single_entity_flag_but_multi_entities(self):
Data = self.classes.Data
sess = Session()
b1 = Bundle('b1', Data.d1, Data.d2, single_entity=True)
b2 = Bundle('b1', Data.d3, single_entity=True)
eq_(
sess.query(b1, b2).
filter(b1.c.d1.between('d3d1', 'd5d1')).
all(),
[
(('d3d1', 'd3d2'), ('d3d3',)),
(('d4d1', 'd4d2'), ('d4d3',)),
(('d5d1', 'd5d2'), ('d5d3',))
]
)
def test_bundle_nesting(self):
Data = self.classes.Data
sess = Session()
b1 = Bundle('b1', Data.d1, Bundle('b2', Data.d2, Data.d3))
eq_(
sess.query(b1).
filter(b1.c.d1.between('d3d1', 'd7d1')).
filter(b1.c.b2.c.d2.between('d4d2', 'd6d2')).
all(),
[(('d4d1', ('d4d2', 'd4d3')),), (('d5d1', ('d5d2', 'd5d3')),),
(('d6d1', ('d6d2', 'd6d3')),)]
)
def test_bundle_nesting_unions(self):
Data = self.classes.Data
sess = Session()
b1 = Bundle('b1', Data.d1, Bundle('b2', Data.d2, Data.d3))
q1 = sess.query(b1).\
filter(b1.c.d1.between('d3d1', 'd7d1')).\
filter(b1.c.b2.c.d2.between('d4d2', 'd5d2'))
q2 = sess.query(b1).\
filter(b1.c.d1.between('d3d1', 'd7d1')).\
filter(b1.c.b2.c.d2.between('d5d2', 'd6d2'))
eq_(
q1.union(q2).all(),
[(('d4d1', ('d4d2', 'd4d3')),), (('d5d1', ('d5d2', 'd5d3')),),
(('d6d1', ('d6d2', 'd6d3')),)]
)
# naming structure is preserved
row = q1.union(q2).first()
eq_(row.b1.d1, 'd4d1')
eq_(row.b1.b2.d2, 'd4d2')
def test_query_count(self):
Data = self.classes.Data
b1 = Bundle('b1', Data.d1, Data.d2)
eq_(Session().query(b1).count(), 10)
def test_join_relationship(self):
Data = self.classes.Data
sess = Session()
b1 = Bundle('b1', Data.d1, Data.d2)
q = sess.query(b1).join(Data.others)
self.assert_compile(q,
"SELECT data.d1 AS data_d1, data.d2 AS data_d2 FROM data "
"JOIN other ON data.id = other.data_id"
)
def test_join_selectable(self):
Data = self.classes.Data
Other = self.classes.Other
sess = Session()
b1 = Bundle('b1', Data.d1, Data.d2)
q = sess.query(b1).join(Other)
self.assert_compile(q,
"SELECT data.d1 AS data_d1, data.d2 AS data_d2 FROM data "
"JOIN other ON data.id = other.data_id"
)
def test_joins_from_adapted_entities(self):
Data = self.classes.Data
# test for #1853 in terms of bundles
# specifically this exercises adapt_to_selectable()
b1 = Bundle('b1', Data.id, Data.d1, Data.d2)
session = Session()
first = session.query(b1)
second = session.query(b1)
unioned = first.union(second)
subquery = session.query(Data.id).subquery()
joined = unioned.outerjoin(subquery, subquery.c.id == Data.id)
joined = joined.order_by(Data.id, Data.d1, Data.d2)
self.assert_compile(
joined,
"SELECT anon_1.data_id AS anon_1_data_id, anon_1.data_d1 AS anon_1_data_d1, "
"anon_1.data_d2 AS anon_1_data_d2 FROM "
"(SELECT data.id AS data_id, data.d1 AS data_d1, data.d2 AS data_d2 FROM "
"data UNION SELECT data.id AS data_id, data.d1 AS data_d1, "
"data.d2 AS data_d2 FROM data) AS anon_1 "
"LEFT OUTER JOIN (SELECT data.id AS id FROM data) AS anon_2 "
"ON anon_2.id = anon_1.data_id "
"ORDER BY anon_1.data_id, anon_1.data_d1, anon_1.data_d2")
# tuple nesting still occurs
eq_(
joined.all(),
[((1, 'd0d1', 'd0d2'),), ((2, 'd1d1', 'd1d2'),),
((3, 'd2d1', 'd2d2'),), ((4, 'd3d1', 'd3d2'),),
((5, 'd4d1', 'd4d2'),), ((6, 'd5d1', 'd5d2'),),
((7, 'd6d1', 'd6d2'),), ((8, 'd7d1', 'd7d2'),),
((9, 'd8d1', 'd8d2'),), ((10, 'd9d1', 'd9d2'),)]
)
def test_filter_by(self):
Data = self.classes.Data
b1 = Bundle('b1', Data.id, Data.d1, Data.d2)
sess = Session()
self.assert_compile(
sess.query(b1).filter_by(d1='d1'),
"SELECT data.id AS data_id, data.d1 AS data_d1, "
"data.d2 AS data_d2 FROM data WHERE data.d1 = :d1_1"
)
def test_clause_expansion(self):
Data = self.classes.Data
b1 = Bundle('b1', Data.id, Data.d1, Data.d2)
sess = Session()
self.assert_compile(
sess.query(Data).order_by(b1),
"SELECT data.id AS data_id, data.d1 AS data_d1, "
"data.d2 AS data_d2, data.d3 AS data_d3 FROM data "
"ORDER BY data.id, data.d1, data.d2"
)
self.assert_compile(
sess.query(func.row_number().over(order_by=b1)),
"SELECT row_number() OVER (ORDER BY data.id, data.d1, data.d2) "
"AS anon_1 FROM data"
)
|
