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https://github.com/escalante29/WealthySmart.git
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088062f757
BAC zero-interest financing: an anchor purchase splits into N monthly cuota transactions (truncate-to-0.10 rule, last cuota absorbs rounding; one cuota per 18th-cut billing cycle on the 19th). Pinned against real Financiamientos data. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
56 lines
2.5 KiB
Python
56 lines
2.5 KiB
Python
"""installment plans (tasa cero)
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Revision ID: 961802a2f50d
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Revises: 7884505b16b3
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Create Date: 2026-07-03 16:00:55.026771
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"""
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from typing import Sequence, Union
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from alembic import op
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import sqlalchemy as sa
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import sqlmodel
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from sqlalchemy.dialects import postgresql
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# revision identifiers, used by Alembic.
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revision: str = '961802a2f50d'
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down_revision: Union[str, Sequence[str], None] = '7884505b16b3'
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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"""Upgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_table('installmentplan',
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sa.Column('num_installments', sa.Integer(), nullable=False),
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sa.Column('first_installment_date', sa.DateTime(), nullable=False),
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sa.Column('total_amount', sa.Numeric(precision=15, scale=2), nullable=False),
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sa.Column('installment_amount', sa.Numeric(precision=15, scale=2), nullable=False),
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# Reuse the existing 'currency' enum type — do NOT re-create it.
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sa.Column('currency', postgresql.ENUM('CRC', 'USD', 'EUR', 'BTC', 'XMR', name='currency', create_type=False), nullable=False),
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sa.Column('notes', sqlmodel.sql.sqltypes.AutoString(), nullable=True),
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sa.Column('id', sa.Integer(), nullable=False),
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sa.Column('anchor_transaction_id', sa.Integer(), nullable=False),
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sa.Column('created_at', sa.DateTime(), nullable=False),
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sa.ForeignKeyConstraint(['anchor_transaction_id'], ['transaction.id'], ondelete='CASCADE'),
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sa.PrimaryKeyConstraint('id')
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)
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op.create_index(op.f('ix_installmentplan_anchor_transaction_id'), 'installmentplan', ['anchor_transaction_id'], unique=True)
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op.add_column('transaction', sa.Column('installment_plan_id', sa.Integer(), nullable=True))
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op.add_column('transaction', sa.Column('is_installment_anchor', sa.Boolean(), server_default='false', nullable=False))
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op.create_index(op.f('ix_transaction_installment_plan_id'), 'transaction', ['installment_plan_id'], unique=False)
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# ### end Alembic commands ###
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def downgrade() -> None:
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"""Downgrade schema."""
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_index(op.f('ix_transaction_installment_plan_id'), table_name='transaction')
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op.drop_column('transaction', 'is_installment_anchor')
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op.drop_column('transaction', 'installment_plan_id')
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op.drop_index(op.f('ix_installmentplan_anchor_transaction_id'), table_name='installmentplan')
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op.drop_table('installmentplan')
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# ### end Alembic commands ###
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