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
|
"""Fix tos and cos field types
Revision ID: 4c573e7135bd
Revises: 28887f25a46f
Create Date: 2014-03-05 12:16:56.618630
"""
# revision identifiers, used by Alembic.
revision = '4c573e7135bd'
down_revision = '28887f25a46f'
from alembic import op
from alembic import context
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import ENUM
YESNO_NAME = 'yesno_values'
YESNO_VALUES = ['yes', 'no']
def upgrade():
op.alter_column('ps_endpoints', 'tos_audio', type_=sa.String(10))
op.alter_column('ps_endpoints', 'tos_video', type_=sa.String(10))
op.drop_column('ps_endpoints', 'cos_audio')
op.drop_column('ps_endpoints', 'cos_video')
op.add_column('ps_endpoints', sa.Column('cos_audio', sa.Integer))
op.add_column('ps_endpoints', sa.Column('cos_video', sa.Integer))
op.alter_column('ps_transports', 'tos', type_=sa.String(10))
# Can't cast YENO_VALUES to Integers, so dropping and adding is required
op.drop_column('ps_transports', 'cos', schema=None, mssql_drop_check=True)
op.add_column('ps_transports', sa.Column('cos', sa.Integer))
def downgrade():
yesno_values = ENUM(*YESNO_VALUES, name=YESNO_NAME, create_type=False)
# Can't cast string to YESNO_VALUES, so dropping and adding is required
op.drop_column('ps_endpoints', 'tos_audio')
op.drop_column('ps_endpoints', 'tos_video')
op.add_column('ps_endpoints', sa.Column('tos_audio', yesno_values))
op.add_column('ps_endpoints', sa.Column('tos_video', yesno_values))
op.drop_column('ps_endpoints', 'cos_audio')
op.drop_column('ps_endpoints', 'cos_video')
op.add_column('ps_endpoints', sa.Column('cos_audio', yesno_values))
op.add_column('ps_endpoints', sa.Column('cos_video', yesno_values))
if op.get_context().bind.dialect.name == 'mssql':
op.drop_constraint('ck_ps_transports_tos_yesno_values', 'ps_transports')
op.drop_column('ps_transports', 'tos')
op.add_column('ps_transports', sa.Column('tos', yesno_values))
# Can't cast integers to YESNO_VALUES, so dropping and adding is required
op.drop_column('ps_transports', 'cos')
op.add_column('ps_transports', sa.Column('cos', yesno_values))
|
