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Remove all uniqueness constraints in migration 76

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Fixes bug 932867

Change-Id: I5b72af7c36cc07ee4f3e23566ed4e91c0c53b10b
This commit is contained in:
Brian Waldon
2012-02-16 16:26:49 -08:00
parent 844035b6c0
commit e35cc0baed
1 changed files with 12 additions and 10 deletions
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nova/db/sqlalchemy/migrate_repo/versions/076_remove_unique_constraints.py
+12 -10
View File
@@ -29,13 +29,13 @@ def _get_constraint_names(engine_name):
# mysql and postgres.
if engine_name == "mysql":
return {
"instance_types_name": "name",
"instance_types_name": ("name", "instance_types_name_key"),
"instance_types_flavorid": "instance_types_flavorid_str_key",
"volume_types_name": "name",
}
else:
return {
"instance_types_name": "instance_types_name_key",
"instance_types_name": ("instance_types_name_key",),
"instance_types_flavorid": "instance_types_flavorid_str_key",
"volume_types_name": "volume_types_name_key",
}
@@ -46,10 +46,11 @@ def upgrade(migrate_engine):
c_names = _get_constraint_names(migrate_engine.name)
table = Table('instance_types', meta, autoload=True)
cons = UniqueConstraint('name',
name=c_names['instance_types_name'],
table=table)
cons.drop()
for constraint_name in c_names['instance_types_name']:
cons = UniqueConstraint('name',
name=constraint_name,
table=table)
cons.drop()
cons = UniqueConstraint('flavorid',
name=c_names['instance_types_flavorid'],
table=table)
@@ -66,10 +67,11 @@ def downgrade(migrate_engine):
c_names = _get_constraint_names(migrate_engine.name)
table = Table('instance_types', meta, autoload=True)
cons = UniqueConstraint('name',
name=c_names['instance_types_name'],
table=table)
cons.create()
for constraint_name in c_names['instance_types_name']:
cons = UniqueConstraint('name',
name=constraint_name,
table=table)
cons.create()
table = Table('instance_types', meta, autoload=True)
cons = UniqueConstraint('flavorid',
name=c_names['instance_types_flavorid'],