Initial commit — PlantGuideScraper project

backend/alembic/versions/002_add_cached_stats_and_indexes.py

@@ -0,0 +1,53 @@
+"""Add cached_stats table and license index
+
+Revision ID: 002
+Revises: 001
+Create Date: 2025-01-25
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+revision: str = '002'
+down_revision: Union[str, None] = '001'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Cached stats table for pre-calculated dashboard statistics
+    op.create_table(
+        'cached_stats',
+        sa.Column('id', sa.Integer(), primary_key=True),
+        sa.Column('key', sa.String(50), nullable=False, unique=True),
+        sa.Column('value', sa.Text(), nullable=False),
+        sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now()),
+    )
+    op.create_index('ix_cached_stats_key', 'cached_stats', ['key'])
+
+    # Add license index to images table (if not exists)
+    # Using batch mode for SQLite compatibility
+    try:
+        op.create_index('ix_images_license', 'images', ['license'])
+    except Exception:
+        pass  # Index may already exist
+
+    # Add only_without_images column to jobs if it doesn't exist
+    try:
+        op.add_column('jobs', sa.Column('only_without_images', sa.Boolean(), default=False))
+    except Exception:
+        pass  # Column may already exist
+
+
+def downgrade() -> None:
+    try:
+        op.drop_index('ix_images_license', 'images')
+    except Exception:
+        pass
+    try:
+        op.drop_column('jobs', 'only_without_images')
+    except Exception:
+        pass
+    op.drop_table('cached_stats')