Blog media type initial migration.
* mediagoblin/media_types/blog/migrations/562bc42a8fff_blog_media_type_initial_migration.py: New file.
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"""Blog media type initial migration
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Revision ID: 562bc42a8fff
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Revises: 52bf0ccbedc1
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Create Date: 2016-03-12 23:17:45.477894
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"""
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# revision identifiers, used by Alembic.
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revision = '562bc42a8fff'
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down_revision = '52bf0ccbedc1'
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branch_labels = ('blog_media_type',)
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depends_on = None
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from alembic import op
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import sqlalchemy as sa
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def upgrade():
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if op.get_bind().engine.has_table("blogpost__mediadata"):
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# Skip; this has already been instantiated
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# (probably via sqlalchemy-migrate)
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return
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op.create_table(
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'mediatype__blogs',
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('title', sa.Unicode(), nullable=True),
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sa.Column('description', sa.UnicodeText(), nullable=True),
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sa.Column('author', sa.Integer(), nullable=False),
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sa.Column('created', sa.DateTime(), nullable=False),
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sa.Column('slug', sa.Unicode(), nullable=True),
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sa.ForeignKeyConstraint(['author'], ['core__users.id']),
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sa.PrimaryKeyConstraint('id'))
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op.create_index(
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op.f('ix_mediatype__blogs_author'),
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'mediatype__blogs', ['author'], unique=False)
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op.create_index(
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op.f('ix_mediatype__blogs_created'),
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'mediatype__blogs', ['created'], unique=False)
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op.create_table(
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'blogpost__mediadata',
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sa.Column('media_entry', sa.Integer(), nullable=False),
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sa.Column('blog', sa.Integer(), nullable=False),
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sa.ForeignKeyConstraint(['blog'], ['mediatype__blogs.id']),
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sa.ForeignKeyConstraint(['media_entry'], ['core__media_entries.id']),
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sa.PrimaryKeyConstraint('media_entry'))
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def downgrade():
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op.drop_table('blogpost__mediadata')
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op.drop_index(op.f('ix_mediatype__blogs_created'),
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table_name='mediatype__blogs')
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op.drop_index(op.f('ix_mediatype__blogs_author'),
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table_name='mediatype__blogs')
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op.drop_table('mediatype__blogs')
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