feat: Szenario-Zeitraum, Neuer Betrag, szenario-eigene Zahlungen – Datenmodell + Migration (A14-T1)

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
2026-09-30 12:58:06 +02:00
parent c065ade0d5
commit b0a1ba80a1
4 changed files with 181 additions and 2 deletions
@@ -0,0 +1,54 @@
+"""szenario zeitraum, neuer betrag, szenario-eigene wiederkehrende zahlungen
+
+Revision ID: e7f1a9c3b214
+Revises: d5e8b3c7a410
+Create Date: 2026-09-30
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+revision: str = 'e7f1a9c3b214'
+down_revision: Union[str, Sequence[str], None] = 'd5e8b3c7a410'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+FK_PLANNED_CATEGORY = 'fk_scenario_planned_items_category_id'
+
+
+def upgrade() -> None:
+    # Bestandsdaten: percent/absolute/remove haben end_date NULL (API hat es
+    # bisher genullt) und gelten damit unverändert unbegrenzt.
+    op.add_column('scenario_modifiers', sa.Column('start_date', sa.Date(), nullable=True))
+    op.add_column('scenario_planned_items',
+                  sa.Column('category_id', sa.Integer(), nullable=True))
+    op.create_foreign_key(FK_PLANNED_CATEGORY, 'scenario_planned_items',
+                          'categories', ['category_id'], ['id'])
+    op.create_table(
+        'scenario_recurring_items',
+        sa.Column('id', sa.Integer(), primary_key=True),
+        sa.Column('scenario_id', sa.Integer(), sa.ForeignKey('scenarios.id'), nullable=False),
+        sa.Column('name', sa.String(length=200), nullable=False),
+        sa.Column('amount', sa.Numeric(precision=12, scale=2), nullable=False),
+        sa.Column('rhythm', sa.String(length=20), nullable=False),
+        sa.Column('due_day', sa.Integer(), nullable=False),
+        sa.Column('start_date', sa.Date(), nullable=True),
+        sa.Column('end_date', sa.Date(), nullable=True),
+        sa.Column('category_id', sa.Integer(), sa.ForeignKey('categories.id'), nullable=True),
+    )
+    op.create_index('ix_scenario_recurring_items_scenario_id',
+                    'scenario_recurring_items', ['scenario_id'])
+
+
+def downgrade() -> None:
+    # Alte Semantik: "set" gab es nicht, end_date nur bei "ende".
+    op.execute("DELETE FROM scenario_modifiers WHERE kind = 'set'")
+    op.execute("UPDATE scenario_modifiers SET end_date = NULL WHERE kind <> 'ende'")
+    op.drop_index('ix_scenario_recurring_items_scenario_id', 'scenario_recurring_items')
+    op.drop_table('scenario_recurring_items')
+    op.drop_constraint(FK_PLANNED_CATEGORY, 'scenario_planned_items', type_='foreignkey')
+    op.drop_column('scenario_planned_items', 'category_id')
+    op.drop_column('scenario_modifiers', 'start_date')