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This is an extra precaution for the table to ensure data integrity. Since we only update/insert the data using the annual_billing_dao methods the integrity is in tact. I've check the data on preview, staging and prod there are no violations of this unique key.
23 lines
501 B
Python
23 lines
501 B
Python
"""
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Revision ID: 0351_unique_key_annual_billing
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Revises: 0350_update_rates
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Create Date: 2021-04-12 09:02:45.098875
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"""
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from alembic import op
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revision = '0351_unique_key_annual_billing'
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down_revision = '0350_update_rates'
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def upgrade():
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op.create_unique_constraint(
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'uix_service_id_financial_year_start', 'annual_billing', ['service_id', 'financial_year_start']
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)
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def downgrade():
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op.drop_constraint('uix_service_id_financial_year_start', 'annual_billing', type_='unique')
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