fbb7766f17bc_add_playlist_to_moh.py

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"""add playlist to moh

Revision ID: fbb7766f17bc
Revises: 3a094a18e75b
Create Date: 2019-09-18 10:24:18.731798

"""

# revision identifiers, used by Alembic.
revision = 'fbb7766f17bc'
down_revision = '3a094a18e75b'

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_musiconhold_mode_moh_mode_values', 'musiconhold')
 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 mode::text::' + enum_name)

 op.execute('DROP TYPE ' + tmp)


def upgrade():
 op.create_table(
 'musiconhold_entry',
 sa.Column('name', sa.String(80), primary_key=True, nullable=False),
 sa.Column('position', sa.Integer, primary_key=True, nullable=False),
 sa.Column('entry', sa.String(1024), nullable=False)
 )
 op.create_foreign_key('fk_musiconhold_entry_name_musiconhold', 'musiconhold_entry', 'musiconhold', ['name'], ['name'])
 enum_update('musiconhold', 'mode', 'moh_mode_values',
 ['custom', 'files', 'mp3nb', 'quietmp3nb', 'quietmp3', 'playlist'])


def downgrade():
 enum_update('musiconhold', 'mode', 'moh_mode_values',
 ['custom', 'files', 'mp3nb', 'quietmp3nb', 'quietmp3'])
 op.drop_table('musiconhold_entry')