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
|
import sqlalchemy as sa
from sqlalchemy.test import testing
from sqlalchemy import Integer, String, ForeignKey
from sqlalchemy.test.schema import Table, Column
from sqlalchemy.orm import mapper, relationship, create_session
from test.orm import _base
from sqlalchemy.test.testing import eq_
class TriggerDefaultsTest(_base.MappedTest):
__requires__ = ('row_triggers',)
@classmethod
def define_tables(cls, metadata):
dt = Table('dt', metadata,
Column('id', Integer, primary_key=True, test_needs_autoincrement=True),
Column('col1', String(20)),
Column('col2', String(20),
server_default=sa.schema.FetchedValue()),
Column('col3', String(20),
sa.schema.FetchedValue(for_update=True)),
Column('col4', String(20),
sa.schema.FetchedValue(),
sa.schema.FetchedValue(for_update=True)))
for ins in (
sa.DDL("CREATE TRIGGER dt_ins AFTER INSERT ON dt "
"FOR EACH ROW BEGIN "
"UPDATE dt SET col2='ins', col4='ins' "
"WHERE dt.id = NEW.id; END",
on='sqlite'),
sa.DDL("CREATE TRIGGER dt_ins ON dt AFTER INSERT AS "
"UPDATE dt SET col2='ins', col4='ins' "
"WHERE dt.id IN (SELECT id FROM inserted);",
on='mssql'),
sa.DDL("CREATE TRIGGER dt_ins BEFORE INSERT "
"ON dt "
"FOR EACH ROW "
"BEGIN "
":NEW.col2 := 'ins'; :NEW.col4 := 'ins'; END;",
on='oracle'),
sa.DDL("CREATE TRIGGER dt_ins BEFORE INSERT ON dt "
"FOR EACH ROW BEGIN "
"SET NEW.col2='ins'; SET NEW.col4='ins'; END",
on=lambda ddl, event, target, bind, **kw:
bind.engine.name not in ('oracle', 'mssql', 'sqlite')
),
):
ins.execute_at('after-create', dt)
sa.DDL("DROP TRIGGER dt_ins").execute_at('before-drop', dt)
for up in (
sa.DDL("CREATE TRIGGER dt_up AFTER UPDATE ON dt "
"FOR EACH ROW BEGIN "
"UPDATE dt SET col3='up', col4='up' "
"WHERE dt.id = OLD.id; END",
on='sqlite'),
sa.DDL("CREATE TRIGGER dt_up ON dt AFTER UPDATE AS "
"UPDATE dt SET col3='up', col4='up' "
"WHERE dt.id IN (SELECT id FROM deleted);",
on='mssql'),
sa.DDL("CREATE TRIGGER dt_up BEFORE UPDATE ON dt "
"FOR EACH ROW BEGIN "
":NEW.col3 := 'up'; :NEW.col4 := 'up'; END;",
on='oracle'),
sa.DDL("CREATE TRIGGER dt_up BEFORE UPDATE ON dt "
"FOR EACH ROW BEGIN "
"SET NEW.col3='up'; SET NEW.col4='up'; END",
on=lambda ddl, event, target, bind, **kw:
bind.engine.name not in ('oracle', 'mssql', 'sqlite')
),
):
up.execute_at('after-create', dt)
sa.DDL("DROP TRIGGER dt_up").execute_at('before-drop', dt)
@classmethod
def setup_classes(cls):
class Default(_base.BasicEntity):
pass
@classmethod
@testing.resolve_artifact_names
def setup_mappers(cls):
mapper(Default, dt)
@testing.resolve_artifact_names
def test_insert(self):
d1 = Default(id=1)
eq_(d1.col1, None)
eq_(d1.col2, None)
eq_(d1.col3, None)
eq_(d1.col4, None)
session = create_session()
session.add(d1)
session.flush()
eq_(d1.col1, None)
eq_(d1.col2, 'ins')
eq_(d1.col3, None)
# don't care which trigger fired
assert d1.col4 in ('ins', 'up')
@testing.resolve_artifact_names
def test_update(self):
d1 = Default(id=1)
session = create_session()
session.add(d1)
session.flush()
d1.col1 = 'set'
session.flush()
eq_(d1.col1, 'set')
eq_(d1.col2, 'ins')
eq_(d1.col3, 'up')
eq_(d1.col4, 'up')
class ExcludedDefaultsTest(_base.MappedTest):
@classmethod
def define_tables(cls, metadata):
dt = Table('dt', metadata,
Column('id', Integer, primary_key=True, test_needs_autoincrement=True),
Column('col1', String(20), default="hello"),
)
@testing.resolve_artifact_names
def test_exclude(self):
class Foo(_base.ComparableEntity):
pass
mapper(Foo, dt, exclude_properties=('col1',))
f1 = Foo()
sess = create_session()
sess.add(f1)
sess.flush()
eq_(dt.select().execute().fetchall(), [(1, "hello")])
|
