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
|
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (c) 2011 Zadara Storage Inc.
# Copyright (c) 2011 OpenStack LLC.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from sqlalchemy import Column, DateTime, Integer, MetaData, String, Table
from sqlalchemy import Text, Boolean, ForeignKey
from nova import log as logging
meta = MetaData()
# Just for the ForeignKey and column creation to succeed, these are not the
# actual definitions of tables .
#
volumes = Table('volumes', meta,
Column('id', Integer(), primary_key=True, nullable=False),
)
volume_type_id = Column('volume_type_id', Integer(), nullable=True)
# New Tables
#
volume_types = Table('volume_types', meta,
Column('created_at', DateTime(timezone=False)),
Column('updated_at', DateTime(timezone=False)),
Column('deleted_at', DateTime(timezone=False)),
Column('deleted', Boolean(create_constraint=True, name=None)),
Column('id', Integer(), primary_key=True, nullable=False),
Column('name',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False),
unique=True))
volume_type_extra_specs_table = Table('volume_type_extra_specs', meta,
Column('created_at', DateTime(timezone=False)),
Column('updated_at', DateTime(timezone=False)),
Column('deleted_at', DateTime(timezone=False)),
Column('deleted', Boolean(create_constraint=True, name=None)),
Column('id', Integer(), primary_key=True, nullable=False),
Column('volume_type_id',
Integer(),
ForeignKey('volume_types.id'),
nullable=False),
Column('key',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
Column('value',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)))
volume_metadata_table = Table('volume_metadata', meta,
Column('created_at', DateTime(timezone=False)),
Column('updated_at', DateTime(timezone=False)),
Column('deleted_at', DateTime(timezone=False)),
Column('deleted', Boolean(create_constraint=True, name=None)),
Column('id', Integer(), primary_key=True, nullable=False),
Column('volume_id',
Integer(),
ForeignKey('volumes.id'),
nullable=False),
Column('key',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)),
Column('value',
String(length=255, convert_unicode=False, assert_unicode=None,
unicode_error=None, _warn_on_bytestring=False)))
new_tables = (volume_types,
volume_type_extra_specs_table,
volume_metadata_table)
#
# Tables to alter
#
def upgrade(migrate_engine):
meta.bind = migrate_engine
for table in new_tables:
try:
table.create()
except Exception:
logging.info(repr(table))
logging.exception('Exception while creating table')
raise
volumes.create_column(volume_type_id)
def downgrade(migrate_engine):
meta.bind = migrate_engine
volumes.drop_column(volume_type_id)
for table in new_tables:
table.drop()
|