Fixed and added all the stats_service.py methods

backend/alembic/versions/f92d8a9264d3_add_image_url_and_lyrics_columns.py

@@ -0,0 +1,36 @@
+"""Add image_url and lyrics columns
+
+Revision ID: f92d8a9264d3
+Revises: 4401cb416661
+Create Date: 2025-12-25 22:06:05.841447
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = 'f92d8a9264d3'
+down_revision: Union[str, Sequence[str], None] = '4401cb416661'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column('artists', sa.Column('image_url', sa.String(), nullable=True))
+    op.add_column('tracks', sa.Column('image_url', sa.String(), nullable=True))
+    op.add_column('tracks', sa.Column('lyrics', sa.Text(), nullable=True))
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column('tracks', 'lyrics')
+    op.drop_column('tracks', 'image_url')
+    op.drop_column('artists', 'image_url')
+    # ### end Alembic commands ###