switched to tagging and added views to support it, in progress for other tagging functions.

migrations/versions/486bf4238616_add_on_delete_cascade_to_image_tags_set_.py

@@ -0,0 +1,138 @@
+"""Add ON DELETE CASCADE to image_tags; SET NULL for ArchiveRecord.tag_id
+
+Revision ID: 486bf4238616
+Revises: fe4dfdd6616c
+Create Date: 2025-08-14 22:41:40.746201
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '486bf4238616'
+down_revision = 'fe4dfdd6616c'
+branch_labels = None
+depends_on = None
+
+
+from alembic import op
+import sqlalchemy as sa
+
+from alembic import op
+import sqlalchemy as sa
+
+# revision identifiers
+revision = "486bf4238616"
+down_revision = "fe4dfdd6616c"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    bind = op.get_bind()
+    dialect = bind.dialect.name
+
+    if dialect == "sqlite":
+        # --- image_tags: recreate with CASCADE FKs ---
+        op.create_table(
+            "image_tags_new",
+            sa.Column("image_id", sa.Integer(), nullable=False),
+            sa.Column("tag_id", sa.Integer(), nullable=False),
+            sa.PrimaryKeyConstraint("image_id", "tag_id"),
+            sa.ForeignKeyConstraint(["image_id"], ["image_record.id"], ondelete="CASCADE"),
+            sa.ForeignKeyConstraint(["tag_id"], ["tag.id"], ondelete="CASCADE"),
+            sa.UniqueConstraint("image_id", "tag_id", name="uq_image_tag"),
+        )
+        op.execute("INSERT INTO image_tags_new (image_id, tag_id) SELECT image_id, tag_id FROM image_tags")
+        op.drop_table("image_tags")
+        op.rename_table("image_tags_new", "image_tags")
+
+        # --- archive_record.tag_id: leave FK as-is on SQLite (dev) ---
+        # We do not alter ondelete here due to SQLite ALTER limitations.
+        # Your reset route deletes in safe order, so this is fine for testing.
+
+    else:
+        # --- Postgres path: drop/recreate FKs normally ---
+        # image_tags -> ON DELETE CASCADE
+        op.drop_constraint("image_tags_image_id_fkey", "image_tags", type_="foreignkey")
+        op.drop_constraint("image_tags_tag_id_fkey", "image_tags", type_="foreignkey")
+        op.create_foreign_key(
+            "image_tags_image_id_fkey",
+            "image_tags",
+            "image_record",
+            ["image_id"],
+            ["id"],
+            ondelete="CASCADE",
+        )
+        op.create_foreign_key(
+            "image_tags_tag_id_fkey",
+            "image_tags",
+            "tag",
+            ["tag_id"],
+            ["id"],
+            ondelete="CASCADE",
+        )
+
+        # archive_record.tag_id -> NULLable + ON DELETE SET NULL
+        op.alter_column("archive_record", "tag_id", existing_type=sa.Integer(), nullable=True)
+        op.drop_constraint("archive_record_tag_id_fkey", "archive_record", type_="foreignkey")
+        op.create_foreign_key(
+            "archive_record_tag_id_fkey",
+            "archive_record",
+            "tag",
+            ["tag_id"],
+            ["id"],
+            ondelete="SET NULL",
+        )
+
+
+def downgrade():
+    bind = op.get_bind()
+    dialect = bind.dialect.name
+
+    if dialect == "sqlite":
+        # revert image_tags to non-cascade FKs (recreate again)
+        op.create_table(
+            "image_tags_old",
+            sa.Column("image_id", sa.Integer(), nullable=False),
+            sa.Column("tag_id", sa.Integer(), nullable=False),
+            sa.PrimaryKeyConstraint("image_id", "tag_id"),
+            sa.ForeignKeyConstraint(["image_id"], ["image_record.id"]),
+            sa.ForeignKeyConstraint(["tag_id"], ["tag.id"]),
+            sa.UniqueConstraint("image_id", "tag_id", name="uq_image_tag"),
+        )
+        op.execute("INSERT INTO image_tags_old (image_id, tag_id) SELECT image_id, tag_id FROM image_tags")
+        op.drop_table("image_tags")
+        op.rename_table("image_tags_old", "image_tags")
+
+        # archive_record left unchanged in upgrade, nothing to revert here.
+
+    else:
+        # Postgres: revert to no-cascade FKs and non-nullable tag_id
+        op.drop_constraint("archive_record_tag_id_fkey", "archive_record", type_="foreignkey")
+        op.create_foreign_key(
+            "archive_record_tag_id_fkey",
+            "archive_record",
+            "tag",
+            ["tag_id"],
+            ["id"],
+        )
+        op.alter_column("archive_record", "tag_id", existing_type=sa.Integer(), nullable=False)
+
+        op.drop_constraint("image_tags_tag_id_fkey", "image_tags", type_="foreignkey")
+        op.drop_constraint("image_tags_image_id_fkey", "image_tags", type_="foreignkey")
+        op.create_foreign_key(
+            "image_tags_image_id_fkey",
+            "image_tags",
+            "image_record",
+            ["image_id"],
+            ["id"],
+        )
+        op.create_foreign_key(
+            "image_tags_tag_id_fkey",
+            "image_tags",
+            "tag",
+            ["tag_id"],
+            ["id"],
+        )

migrations/versions/a46e641430b8_drop_imagerecord_artist_use_tags_instead.py

@@ -0,0 +1,39 @@
+"""Drop ImageRecord.artist (use tags instead)
+
+Revision ID: a46e641430b8
+Revises: 486bf4238616
+Create Date: 2025-08-15 00:52:13.293364
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'a46e641430b8'
+down_revision = '486bf4238616'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    bind = op.get_bind()
+    dialect = bind.dialect.name
+
+    if dialect == "sqlite":
+        # Recreate table without the 'artist' column (SQLite can't drop columns natively)
+        with op.batch_alter_table("image_record", recreate="always") as batch_op:
+            batch_op.drop_column("artist")
+    else:
+        # Postgres / others can drop directly
+        op.drop_column("image_record", "artist")
+
+def downgrade():
+    bind = op.get_bind()
+    dialect = bind.dialect.name
+
+    if dialect == "sqlite":
+        with op.batch_alter_table("image_record", recreate="always") as batch_op:
+            batch_op.add_column(sa.Column("artist", sa.String(length=255), nullable=True))
+    else:
+        op.add_column("image_record", sa.Column("artist", sa.String(length=255), nullable=True))