feat(series): SeriesPage model + 0005 migration (unique image, ordered pages)

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-16 23:33:12 -04:00
parent 9062942af6
commit b83baa7d7f
4 changed files with 130 additions and 0 deletions
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+"""fc2c-iii-a: series_page ordered membership
+
+Revision ID: 0005
+Revises: 0004
+Create Date: 2026-05-16
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0005"
+down_revision: Union[str, None] = "0004"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "series_page",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("series_tag_id", sa.Integer(), nullable=False),
+        sa.Column("image_id", sa.Integer(), nullable=False),
+        sa.Column("page_number", sa.Integer(), nullable=False),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True),
+            nullable=False, server_default=sa.func.now(),
+        ),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True),
+            nullable=False, server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["series_tag_id"], ["tag.id"], ondelete="CASCADE"
+        ),
+        sa.ForeignKeyConstraint(
+            ["image_id"], ["image_record.id"], ondelete="CASCADE"
+        ),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("image_id", name="uq_series_page_image"),
+    )
+    op.create_index(
+        "ix_series_page_series_tag_id", "series_page", ["series_tag_id"]
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_series_page_series_tag_id", table_name="series_page")
+    op.drop_table("series_page")