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Change derived storage to be based on image

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Fixes #971
This commit is contained in:
Joseph Schorr 2015-11-24 12:44:07 -05:00
parent 8d05d40cf7
commit 762cd56e64
10 changed files with 155 additions and 112 deletions
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39
data/migrations/versions/5a2445ffe21b_add_new_derivedstorageforimage_table.py Normal file
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"""Add new DerivedStorageForImage table
Revision ID: 5a2445ffe21b
Revises: 1b2bb93ceb82
Create Date: 2015-11-24 11:58:02.956687
"""
# revision identifiers, used by Alembic.
revision = '5a2445ffe21b'
down_revision = '1b2bb93ceb82'
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects import mysql
def upgrade(tables):
### commands auto generated by Alembic - please adjust! ###
op.create_table('derivedstorageforimage',
sa.Column('id', sa.Integer(), nullable=False),
sa.Column('source_image_id', sa.Integer(), nullable=False),
sa.Column('derivative_id', sa.Integer(), nullable=False),
sa.Column('transformation_id', sa.Integer(), nullable=False),
sa.ForeignKeyConstraint(['derivative_id'], ['imagestorage.id'], name=op.f('fk_derivedstorageforimage_derivative_id_imagestorage')),
sa.ForeignKeyConstraint(['source_image_id'], ['image.id'], name=op.f('fk_derivedstorageforimage_source_image_id_image')),
sa.ForeignKeyConstraint(['transformation_id'], ['imagestoragetransformation.id'], name=op.f('fk_derivedstorageforimage_transformation_constraint')),
sa.PrimaryKeyConstraint('id', name=op.f('pk_derivedstorageforimage'))
)
op.create_index('derivedstorageforimage_derivative_id', 'derivedstorageforimage', ['derivative_id'], unique=False)
op.create_index('derivedstorageforimage_source_image_id', 'derivedstorageforimage', ['source_image_id'], unique=False)
op.create_index('derivedstorageforimage_source_image_id_transformation_id', 'derivedstorageforimage', ['source_image_id', 'transformation_id'], unique=True)
op.create_index('derivedstorageforimage_transformation_id', 'derivedstorageforimage', ['transformation_id'], unique=False)
### end Alembic commands ###
def downgrade(tables):
### commands auto generated by Alembic - please adjust! ###
op.drop_table('derivedstorageforimage')
### end Alembic commands ###