V0.2.0

migrations/env.py

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+from logging.config import fileConfig
+
+from sqlalchemy import engine_from_config
+from sqlalchemy import pool, create_engine
+
+from alembic import context
+from app.models import Base
+from app.config import Config
+
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# Set the database URL from our app config
+config.set_main_option('sqlalchemy.url', Config.SQLALCHEMY_DATABASE_URI)
+
+# Interpret the config file for Python logging.
+# This line sets up loggers basically.
+if config.config_file_name is not None:
+    fileConfig(config.config_file_name)
+
+# add your model's MetaData object here
+# for 'autogenerate' support
+# from myapp import mymodel
+# target_metadata = mymodel.Base.metadata
+target_metadata = Base.metadata 
+
+
+# other values from the config, defined by the needs of env.py,
+# can be acquired:
+# my_important_option = config.get_main_option("my_important_option")
+# ... etc.
+
+
+def run_migrations_offline() -> None:
+    """Run migrations in 'offline' mode.
+
+    This configures the context with just a URL
+    and not an Engine, though an Engine is acceptable
+    here as well.  By skipping the Engine creation
+    we don't even need a DBAPI to be available.
+
+    Calls to context.execute() here emit the given string to the
+    script output.
+
+    """
+    url = config.get_main_option("sqlalchemy.url")
+    context.configure(
+        url=url,
+        target_metadata=target_metadata,
+        literal_binds=True,
+        dialect_opts={"paramstyle": "named"},
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+def run_migrations_online() -> None:
+    """Run migrations in 'online' mode.
+
+    In this scenario we need to create an Engine
+    and associate a connection with the context.
+
+    """
+    # Use create_engine() directly with our URL
+    connectable = create_engine(Config.SQLALCHEMY_DATABASE_URI)
+
+    with connectable.connect() as connection:
+        context.configure(
+            connection=connection,
+            target_metadata=target_metadata
+        )
+
+        with context.begin_transaction():
+            context.run_migrations()
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

migrations/script.py.mako

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+"""${message}
+
+Revision ID: ${up_revision}
+Revises: ${down_revision | comma,n}
+Create Date: ${create_date}
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+${imports if imports else ""}
+
+# revision identifiers, used by Alembic.
+revision: str = ${repr(up_revision)}
+down_revision: Union[str, None] = ${repr(down_revision)}
+branch_labels: Union[str, Sequence[str], None] = ${repr(branch_labels)}
+depends_on: Union[str, Sequence[str], None] = ${repr(depends_on)}
+
+
+def upgrade() -> None:
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    ${downgrades if downgrades else "pass"}

migrations/versions/8911624d0776_add_watch_history_columns.py

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+"""add watch history columns
+
+Revision ID: 8911624d0776
+Revises: 
+Create Date: 2024-xx-xx xx:xx:xx.xxx
+"""
+from alembic import op
+import sqlalchemy as sa
+from datetime import datetime
+from sqlalchemy.engine.reflection import Inspector
+from sqlalchemy import text
+
+
+# revision identifiers, used by Alembic.
+revision = '8911624d0776'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def column_exists(table, column):
+    # Get inspector
+    conn = op.get_bind()
+    inspector = Inspector.from_engine(conn)
+    columns = [c['name'] for c in inspector.get_columns(table)]
+    return column in columns
+
+
+def upgrade():
+    # Add new columns if they don't exist
+    with op.batch_alter_table('watch_history') as batch_op:
+        # Add category column
+        if not column_exists('watch_history', 'category'):
+            batch_op.add_column(sa.Column('category', sa.String(100), nullable=True))
+            
+        # Add view_count column
+        if not column_exists('watch_history', 'view_count'):
+            batch_op.add_column(sa.Column('view_count', sa.Integer(), nullable=True))
+            
+        # Add subscriber_count column
+        if not column_exists('watch_history', 'subscriber_count'):
+            batch_op.add_column(sa.Column('subscriber_count', sa.Integer(), nullable=True))
+            
+        # Add thumbnail_url column
+        if not column_exists('watch_history', 'thumbnail_url'):
+            batch_op.add_column(sa.Column('thumbnail_url', sa.String(255), nullable=True))
+            
+        # Add upload_date column
+        if not column_exists('watch_history', 'upload_date'):
+            batch_op.add_column(sa.Column('upload_date', sa.DateTime(), nullable=True))
+
+    # Backfill data
+    conn = op.get_bind()
+    conn.execute(text("""
+        UPDATE watch_history 
+        SET category = COALESCE(category, 'Unknown'),
+            view_count = COALESCE(view_count, 0),
+            subscriber_count = COALESCE(subscriber_count, 0),
+            thumbnail_url = COALESCE(thumbnail_url, ''),
+            upload_date = COALESCE(upload_date, watch_date)
+        WHERE category IS NULL
+        OR view_count IS NULL
+        OR subscriber_count IS NULL
+        OR thumbnail_url IS NULL
+        OR upload_date IS NULL
+    """))
+
+
+def downgrade():
+    with op.batch_alter_table('watch_history') as batch_op:
+        if column_exists('watch_history', 'upload_date'):
+            batch_op.drop_column('upload_date')
+        if column_exists('watch_history', 'thumbnail_url'):
+            batch_op.drop_column('thumbnail_url')
+        if column_exists('watch_history', 'subscriber_count'):
+            batch_op.drop_column('subscriber_count')
+        if column_exists('watch_history', 'view_count'):
+            batch_op.drop_column('view_count')
+        if column_exists('watch_history', 'category'):
+            batch_op.drop_column('category')