mediagoblin/plugins/archivalook/migrations/b10b5f822789_archivalook_plugin_initial_migration.py

   1 """ArchivaLook plugin initial migration
   2
   3 Revision ID: b10b5f822789
   4 Revises: 52bf0ccbedc1
   5 Create Date: 2016-03-12 23:37:51.551856
   6
   7 """
   8
   9 # revision identifiers, used by Alembic.
  10 revision = 'b10b5f822789'
  11 down_revision = '52bf0ccbedc1'
  12 branch_labels = ('archivalook_plugin',)
  13 depends_on = None
  14
  15 from alembic import op
  16 import sqlalchemy as sa
  17
  18
  19 def upgrade():
  20     if op.get_bind().engine.has_table('archivalook__featured_media'):
  21         # Skip; this has already been instantiated
  22         # (probably via sqlalchemy-migrate)
  23         return
  24
  25     op.create_table(
  26         'archivalook__featured_media',
  27         sa.Column('id', sa.Integer(), nullable=False),
  28         sa.Column('media_entry_id', sa.Integer(), nullable=False),
  29         sa.Column('display_type', sa.Unicode(), nullable=False),
  30         sa.Column('order', sa.Integer(), nullable=False),
  31         sa.ForeignKeyConstraint(['media_entry_id'],
  32                                 ['core__media_entries.id']),
  33         sa.PrimaryKeyConstraint('id'))
  34
  35
  36 def downgrade():
  37     op.drop_table('archivalook__featured_media')