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"""add pjsip identify by ip
Revision ID: 20abce6d1e3c
Revises: a1698e8bb9c5
Create Date: 2017-10-24 15:44:06.404774
"""
# revision identifiers, used by Alembic.
revision = '20abce6d1e3c'
down_revision = 'a1698e8bb9c5'
from alembic import op
import sqlalchemy as sa
def enum_update(table_name, column_name, enum_name, enum_values):
if op.get_context().bind.dialect.name != 'postgresql':
if op.get_context().bind.dialect.name == 'mssql':
op.drop_constraint('ck_ps_endpoints_identify_by_pjsip_identify_by_values', 'ps_endpoints')
op.alter_column(table_name, column_name,
type_=sa.Enum(*enum_values, name=enum_name))
return
# Postgres requires a few more steps
tmp = enum_name + '_tmp'
op.execute('ALTER TYPE ' + enum_name + ' RENAME TO ' + tmp)
updated = sa.Enum(*enum_values, name=enum_name)
updated.create(op.get_bind(), checkfirst=False)
op.execute('ALTER TABLE ' + table_name + ' ALTER COLUMN ' + column_name +
' TYPE ' + enum_name + ' USING identify_by::text::' + enum_name)
op.execute('DROP TYPE ' + tmp)
def upgrade():
enum_update('ps_endpoints', 'identify_by', 'pjsip_identify_by_values',
['username', 'auth_username', 'ip'])
def downgrade():
enum_update('ps_endpoints', 'identify_by', 'pjsip_identify_by_values',
['username', 'auth_username'])
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