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|
#! coding:utf-8
from sqlalchemy import Column, Integer, MetaData, String, Table,\
bindparam, exc, func, insert, select
from sqlalchemy.dialects import mysql, postgresql
from sqlalchemy.engine import default
from sqlalchemy.testing import AssertsCompiledSQL,\
assert_raises_message, fixtures
class _InsertTestBase(object):
@classmethod
def define_tables(cls, metadata):
Table('mytable', metadata,
Column('myid', Integer),
Column('name', String(30)),
Column('description', String(30)))
Table('myothertable', metadata,
Column('otherid', Integer),
Column('othername', String(30)))
class InsertTest(_InsertTestBase, fixtures.TablesTest, AssertsCompiledSQL):
__dialect__ = 'default'
def test_generic_insert_bind_params_all_columns(self):
table1 = self.tables.mytable
self.assert_compile(insert(table1),
'INSERT INTO mytable (myid, name, description) '
'VALUES (:myid, :name, :description)')
def test_insert_with_values_dict(self):
table1 = self.tables.mytable
checkparams = {
'myid': 3,
'name': 'jack'
}
self.assert_compile(insert(table1, dict(myid=3, name='jack')),
'INSERT INTO mytable (myid, name) VALUES (:myid, :name)',
checkparams=checkparams)
def test_insert_with_values_tuple(self):
table1 = self.tables.mytable
checkparams = {
'myid': 3,
'name': 'jack',
'description': 'mydescription'
}
self.assert_compile(insert(table1, (3, 'jack', 'mydescription')),
'INSERT INTO mytable (myid, name, description) '
'VALUES (:myid, :name, :description)',
checkparams=checkparams)
def test_insert_with_values_func(self):
table1 = self.tables.mytable
self.assert_compile(insert(table1, values=dict(myid=func.lala())),
'INSERT INTO mytable (myid) VALUES (lala())')
def test_insert_with_user_supplied_bind_params(self):
table1 = self.tables.mytable
values = {
table1.c.myid: bindparam('userid'),
table1.c.name: bindparam('username')
}
self.assert_compile(insert(table1, values),
'INSERT INTO mytable (myid, name) VALUES (:userid, :username)')
def test_insert_values(self):
table1 = self.tables.mytable
values1 = {table1.c.myid: bindparam('userid')}
values2 = {table1.c.name: bindparam('username')}
self.assert_compile(insert(table1, values=values1).values(values2),
'INSERT INTO mytable (myid, name) VALUES (:userid, :username)')
def test_prefix_with(self):
table1 = self.tables.mytable
stmt = table1.insert().\
prefix_with('A', 'B', dialect='mysql').\
prefix_with('C', 'D')
self.assert_compile(stmt,
'INSERT C D INTO mytable (myid, name, description) '
'VALUES (:myid, :name, :description)')
self.assert_compile(stmt,
'INSERT A B C D INTO mytable (myid, name, description) '
'VALUES (%s, %s, %s)', dialect=mysql.dialect())
def test_inline_default(self):
metadata = MetaData()
table = Table('sometable', metadata,
Column('id', Integer, primary_key=True),
Column('foo', Integer, default=func.foobar()))
self.assert_compile(table.insert(values={}, inline=True),
'INSERT INTO sometable (foo) VALUES (foobar())')
self.assert_compile(table.insert(inline=True),
'INSERT INTO sometable (foo) VALUES (foobar())', params={})
def test_insert_returning_not_in_default(self):
table1 = self.tables.mytable
stmt = table1.insert().returning(table1.c.myid)
assert_raises_message(
exc.CompileError,
"RETURNING is not supported by this dialect's statement compiler.",
stmt.compile,
dialect=default.DefaultDialect()
)
def test_insert_from_select_select(self):
table1 = self.tables.mytable
sel = select([table1.c.myid, table1.c.name]).where(table1.c.name == 'foo')
ins = self.tables.myothertable.insert().\
from_select(("otherid", "othername"), sel)
self.assert_compile(
ins,
"INSERT INTO myothertable (otherid, othername) "
"SELECT mytable.myid, mytable.name FROM mytable "
"WHERE mytable.name = :name_1",
checkparams={"name_1": "foo"}
)
def test_insert_mix_select_values_exception(self):
table1 = self.tables.mytable
sel = select([table1.c.myid, table1.c.name]).where(table1.c.name == 'foo')
ins = self.tables.myothertable.insert().\
from_select(("otherid", "othername"), sel)
assert_raises_message(
exc.InvalidRequestError,
"This construct already inserts from a SELECT",
ins.values, othername="5"
)
def test_insert_mix_values_select_exception(self):
table1 = self.tables.mytable
sel = select([table1.c.myid, table1.c.name]).where(table1.c.name == 'foo')
ins = self.tables.myothertable.insert().values(othername="5")
assert_raises_message(
exc.InvalidRequestError,
"This construct already inserts value expressions",
ins.from_select, ("otherid", "othername"), sel
)
def test_insert_from_select_table(self):
table1 = self.tables.mytable
ins = self.tables.myothertable.insert().\
from_select(("otherid", "othername"), table1)
# note we aren't checking the number of columns right now
self.assert_compile(
ins,
"INSERT INTO myothertable (otherid, othername) "
"SELECT mytable.myid, mytable.name, mytable.description "
"FROM mytable",
checkparams={}
)
def test_insert_from_select_col_values(self):
table1 = self.tables.mytable
table2 = self.tables.myothertable
sel = select([table1.c.myid, table1.c.name]).where(table1.c.name == 'foo')
ins = table2.insert().\
from_select((table2.c.otherid, table2.c.othername), sel)
self.assert_compile(
ins,
"INSERT INTO myothertable (otherid, othername) "
"SELECT mytable.myid, mytable.name FROM mytable "
"WHERE mytable.name = :name_1",
checkparams={"name_1": "foo"}
)
class EmptyTest(_InsertTestBase, fixtures.TablesTest, AssertsCompiledSQL):
__dialect__ = 'default'
def test_empty_insert_default(self):
table1 = self.tables.mytable
stmt = table1.insert().values({}) # hide from 2to3
self.assert_compile(stmt, 'INSERT INTO mytable () VALUES ()')
def test_supports_empty_insert_true(self):
table1 = self.tables.mytable
dialect = default.DefaultDialect()
dialect.supports_empty_insert = dialect.supports_default_values = True
stmt = table1.insert().values({}) # hide from 2to3
self.assert_compile(stmt,
'INSERT INTO mytable DEFAULT VALUES',
dialect=dialect)
def test_supports_empty_insert_false(self):
table1 = self.tables.mytable
dialect = default.DefaultDialect()
dialect.supports_empty_insert = dialect.supports_default_values = False
stmt = table1.insert().values({}) # hide from 2to3
assert_raises_message(exc.CompileError,
"The 'default' dialect with current database version "
"settings does not support empty inserts.",
stmt.compile, dialect=dialect)
class MultirowTest(_InsertTestBase, fixtures.TablesTest, AssertsCompiledSQL):
__dialect__ = 'default'
def test_not_supported(self):
table1 = self.tables.mytable
dialect = default.DefaultDialect()
stmt = table1.insert().values([{'myid': 1}, {'myid': 2}])
assert_raises_message(
exc.CompileError,
"The 'default' dialect with current database version settings "
"does not support in-place multirow inserts.",
stmt.compile, dialect=dialect)
def test_named(self):
table1 = self.tables.mytable
values = [
{'myid': 1, 'name': 'a', 'description': 'b'},
{'myid': 2, 'name': 'c', 'description': 'd'},
{'myid': 3, 'name': 'e', 'description': 'f'}
]
checkparams = {
'myid_0': 1,
'myid_1': 2,
'myid_2': 3,
'name_0': 'a',
'name_1': 'c',
'name_2': 'e',
'description_0': 'b',
'description_1': 'd',
'description_2': 'f',
}
dialect = default.DefaultDialect()
dialect.supports_multivalues_insert = True
self.assert_compile(table1.insert().values(values),
'INSERT INTO mytable (myid, name, description) VALUES '
'(:myid_0, :name_0, :description_0), '
'(:myid_1, :name_1, :description_1), '
'(:myid_2, :name_2, :description_2)',
checkparams=checkparams, dialect=dialect)
def test_positional(self):
table1 = self.tables.mytable
values = [
{'myid': 1, 'name': 'a', 'description': 'b'},
{'myid': 2, 'name': 'c', 'description': 'd'},
{'myid': 3, 'name': 'e', 'description': 'f'}
]
checkpositional = (1, 'a', 'b', 2, 'c', 'd', 3, 'e', 'f')
dialect = default.DefaultDialect()
dialect.supports_multivalues_insert = True
dialect.paramstyle = 'format'
dialect.positional = True
self.assert_compile(table1.insert().values(values),
'INSERT INTO mytable (myid, name, description) VALUES '
'(%s, %s, %s), (%s, %s, %s), (%s, %s, %s)',
checkpositional=checkpositional, dialect=dialect)
def test_inline_default(self):
metadata = MetaData()
table = Table('sometable', metadata,
Column('id', Integer, primary_key=True),
Column('data', String),
Column('foo', Integer, default=func.foobar()))
values = [
{'id': 1, 'data': 'data1'},
{'id': 2, 'data': 'data2', 'foo': 'plainfoo'},
{'id': 3, 'data': 'data3'},
]
checkparams = {
'id_0': 1,
'id_1': 2,
'id_2': 3,
'data_0': 'data1',
'data_1': 'data2',
'data_2': 'data3',
'foo_1': 'plainfoo',
}
self.assert_compile(table.insert().values(values),
'INSERT INTO sometable (id, data, foo) VALUES '
'(%(id_0)s, %(data_0)s, foobar()), '
'(%(id_1)s, %(data_1)s, %(foo_1)s), '
'(%(id_2)s, %(data_2)s, foobar())',
checkparams=checkparams, dialect=postgresql.dialect())
def test_server_default(self):
metadata = MetaData()
table = Table('sometable', metadata,
Column('id', Integer, primary_key=True),
Column('data', String),
Column('foo', Integer, server_default=func.foobar()))
values = [
{'id': 1, 'data': 'data1'},
{'id': 2, 'data': 'data2', 'foo': 'plainfoo'},
{'id': 3, 'data': 'data3'},
]
checkparams = {
'id_0': 1,
'id_1': 2,
'id_2': 3,
'data_0': 'data1',
'data_1': 'data2',
'data_2': 'data3',
}
self.assert_compile(table.insert().values(values),
'INSERT INTO sometable (id, data) VALUES '
'(%(id_0)s, %(data_0)s), '
'(%(id_1)s, %(data_1)s), '
'(%(id_2)s, %(data_2)s)',
checkparams=checkparams, dialect=postgresql.dialect())
def test_server_default_absent_value(self):
metadata = MetaData()
table = Table('sometable', metadata,
Column('id', Integer, primary_key=True),
Column('data', String),
Column('foo', Integer, server_default=func.foobar()))
values = [
{'id': 1, 'data': 'data1', 'foo': 'plainfoo'},
{'id': 2, 'data': 'data2'},
{'id': 3, 'data': 'data3', 'foo': 'otherfoo'},
]
checkparams = {
'id_0': 1,
'id_1': 2,
'id_2': 3,
'data_0': 'data1',
'data_1': 'data2',
'data_2': 'data3',
'foo_0': 'plainfoo',
'foo_2': 'otherfoo',
}
# note the effect here is that the first set of params
# takes effect for the rest of them, when one is absent
self.assert_compile(table.insert().values(values),
'INSERT INTO sometable (id, data, foo) VALUES '
'(%(id_0)s, %(data_0)s, %(foo_0)s), '
'(%(id_1)s, %(data_1)s, %(foo_0)s), '
'(%(id_2)s, %(data_2)s, %(foo_2)s)',
checkparams=checkparams, dialect=postgresql.dialect())
|
