mediagoblin/mediagoblin/plugins/archivalook/migrations/b10b5f822789_archivalook_plugin_initial_migration.py
Christopher Allan Webber c527242841 Only run archivalook migration if the tables aren't there.
Standard for anything existing before the Alembic move-over, but I
forgot this one.

* mediagoblin/plugins/archivalook/migrations/b10b5f822789_archivalook_plugin_initial_migration.py
  (upgrade): Add has_table check, skip if such a table already exists.
2016-03-26 11:39:08 -07:00

38 lines
1.0 KiB
Python

"""ArchivaLook plugin initial migration
Revision ID: b10b5f822789
Revises: 52bf0ccbedc1
Create Date: 2016-03-12 23:37:51.551856
"""
# revision identifiers, used by Alembic.
revision = 'b10b5f822789'
down_revision = '52bf0ccbedc1'
branch_labels = ('archivalook_plugin',)
depends_on = None
from alembic import op
import sqlalchemy as sa
def upgrade():
if op.get_bind().engine.has_table('archivalook__featured_media'):
# Skip; this has already been instantiated
# (probably via sqlalchemy-migrate)
return
op.create_table(
'archivalook__featured_media',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('media_entry_id', sa.Integer(), nullable=False),
sa.Column('display_type', sa.Unicode(), nullable=False),
sa.Column('order', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['media_entry_id'],
['core__media_entries.id']),
sa.PrimaryKeyConstraint('id'))
def downgrade():
op.drop_table('archivalook__featured_media')