mediagoblin/media_types/stl/migrations/16134ed134ad_stl_media_type_initial_migration.py

   1 """STL media type initial migration
   2
   3 Revision ID: 16134ed134ad
   4 Revises: 52bf0ccbedc1
   5 Create Date: 2016-03-12 23:00:43.084284
   6
   7 """
   8
   9 # revision identifiers, used by Alembic.
  10 revision = '16134ed134ad'
  11 down_revision = '52bf0ccbedc1'
  12 branch_labels = ('stl_media_type',)
  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("stl__mediadata"):
  21         # Skip; this has already been instantiated
  22         # (probably via sqlalchemy-migrate)
  23         return
  24
  25     op.create_table(
  26         'stl__mediadata',
  27         sa.Column('media_entry', sa.Integer(), nullable=False),
  28         sa.Column('center_x', sa.Float(), nullable=True),
  29         sa.Column('center_y', sa.Float(), nullable=True),
  30         sa.Column('center_z', sa.Float(), nullable=True),
  31         sa.Column('width', sa.Float(), nullable=True),
  32         sa.Column('height', sa.Float(), nullable=True),
  33         sa.Column('depth', sa.Float(), nullable=True),
  34         sa.Column('file_type', sa.String(), nullable=True),
  35         sa.ForeignKeyConstraint(['media_entry'], ['core__media_entries.id'], ),
  36         sa.PrimaryKeyConstraint('media_entry'))
  37
  38
  39 def downgrade():
  40     op.drop_table('stl__mediadata')