70 lines
3.0 KiB
Python
70 lines
3.0 KiB
Python
"""add_coupon_system
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Revision ID: 20251017_0000
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Revises: 20251016_0000
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Create Date: 2025-10-17 00:00:00.000000
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"""
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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import uuid
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# revision identifiers, used by Alembic.
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revision = '20251017_0000'
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down_revision = '20251016_0000'
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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# Create coupons table
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op.create_table(
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'coupons',
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sa.Column('id', postgresql.UUID(as_uuid=True), primary_key=True, default=uuid.uuid4),
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sa.Column('code', sa.String(50), nullable=False, unique=True),
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sa.Column('discount_type', sa.String(20), nullable=False),
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sa.Column('discount_value', sa.Integer(), nullable=False),
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sa.Column('max_redemptions', sa.Integer(), nullable=True),
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sa.Column('current_redemptions', sa.Integer(), nullable=False, server_default='0'),
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sa.Column('valid_from', sa.DateTime(timezone=True), nullable=False),
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sa.Column('valid_until', sa.DateTime(timezone=True), nullable=True),
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sa.Column('active', sa.Boolean(), nullable=False, server_default='true'),
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sa.Column('created_at', sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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sa.Column('extra_data', postgresql.JSON(astext_type=sa.Text()), nullable=True),
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)
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# Create indexes for coupons table
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op.create_index('idx_coupon_code_active', 'coupons', ['code', 'active'])
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op.create_index('idx_coupon_valid_dates', 'coupons', ['valid_from', 'valid_until'])
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# Create coupon_redemptions table
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op.create_table(
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'coupon_redemptions',
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sa.Column('id', postgresql.UUID(as_uuid=True), primary_key=True, default=uuid.uuid4),
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sa.Column('tenant_id', sa.String(255), nullable=False),
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sa.Column('coupon_code', sa.String(50), nullable=False),
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sa.Column('redeemed_at', sa.DateTime(timezone=True), nullable=False, server_default=sa.func.now()),
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sa.Column('discount_applied', postgresql.JSON(astext_type=sa.Text()), nullable=False),
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sa.Column('extra_data', postgresql.JSON(astext_type=sa.Text()), nullable=True),
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sa.ForeignKeyConstraint(['coupon_code'], ['coupons.code'], name='fk_coupon_redemption_code'),
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)
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# Create indexes for coupon_redemptions table
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op.create_index('idx_redemption_tenant', 'coupon_redemptions', ['tenant_id'])
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op.create_index('idx_redemption_coupon', 'coupon_redemptions', ['coupon_code'])
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op.create_index('idx_redemption_tenant_coupon', 'coupon_redemptions', ['tenant_id', 'coupon_code'])
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def downgrade() -> None:
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# Drop indexes first
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op.drop_index('idx_redemption_tenant_coupon', table_name='coupon_redemptions')
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op.drop_index('idx_redemption_coupon', table_name='coupon_redemptions')
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op.drop_index('idx_redemption_tenant', table_name='coupon_redemptions')
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op.drop_index('idx_coupon_valid_dates', table_name='coupons')
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op.drop_index('idx_coupon_code_active', table_name='coupons')
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# Drop tables
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op.drop_table('coupon_redemptions')
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op.drop_table('coupons')
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