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				|  |  | +"""add state to state market track
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				|  |  | +
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				|  |  | +Revision ID: 89ec1e8a0561
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				|  |  | +Revises: ce18c26cb4be
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				|  |  | +Create Date: 2019-09-09 13:35:27.216929
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				|  |  | +
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				|  |  | +"""
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				|  |  | +from alembic import op
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				|  |  | +import sqlalchemy as sa
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				|  |  | +
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				|  |  | +
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				|  |  | +# revision identifiers, used by Alembic.
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				|  |  | +revision = '89ec1e8a0561'
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				|  |  | +down_revision = 'ce18c26cb4be'
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				|  |  | +branch_labels = None
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				|  |  | +depends_on = None
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				|  |  | +
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				|  |  | +
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				|  |  | +def upgrade():
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				|  |  | +    op.alter_column('factory_location', 'factory_id',
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				|  |  | +               existing_type=sa.BIGINT(),
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				|  |  | +               type_=sa.Integer())
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				|  |  | +    op.add_column('state_market_stat', sa.Column('amount', sa.BigInteger(), nullable=True))
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				|  |  | +    op.add_column('state_market_stat', sa.Column('state_id', sa.Integer(), nullable=True))
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				|  |  | +    op.create_foreign_key(op.f('fk_state_market_stat_state_id_state'), 'state_market_stat', 'state', ['state_id'], ['id'])
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				|  |  | +
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				|  |  | +
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				|  |  | +def downgrade():
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				|  |  | +    op.drop_constraint(op.f('fk_state_market_stat_state_id_state'), 'state_market_stat', type_='foreignkey')
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				|  |  | +    op.drop_column('state_market_stat', 'state_id')
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				|  |  | +    op.drop_column('state_market_stat', 'amount')
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				|  |  | +    op.alter_column('factory_location', 'factory_id',
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				|  |  | +               existing_type=sa.Integer(),
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				|  |  | +               type_=sa.BIGINT())
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