Add source

alembic/README

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+Generic single-database configuration.

alembic/env.py

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+"""
+Alembic environment configuration for async SQLAlchemy
+"""
+from logging.config import fileConfig
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+
+from alembic import context
+
+# Import settings and models
+import sys
+from pathlib import Path
+
+# Add project root to path
+project_root = Path(__file__).parent.parent
+sys.path.insert(0, str(project_root))
+
+from shared.config import settings
+from shared.database.models import Base
+
+# this is the Alembic Config object, which provides
+# access to the values within the .ini file in use.
+config = context.config
+
+# 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)
+
+# Set target metadata for autogenerate
+target_metadata = Base.metadata
+
+# Override sqlalchemy.url from settings if not set in alembic.ini
+if config.get_main_option("sqlalchemy.url") == "driver://user:pass@localhost/dbname":
+    config.set_main_option("sqlalchemy.url", settings.DATABASE_URL)
+
+
+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 do_run_migrations(connection: Connection) -> None:
+    """
+    Run migrations with the given connection.
+    """
+    context.configure(
+        connection=connection, 
+        target_metadata=target_metadata,
+        compare_type=False  # Disable autogenerate comparison to use explicit migration definitions
+    )
+
+    with context.begin_transaction():
+        context.run_migrations()
+
+
+async def run_async_migrations() -> None:
+    """
+    Run migrations in 'online' mode with async engine.
+    """
+    # Get database URL from settings
+    database_url = settings.DATABASE_URL
+    
+    # Create async engine from config
+    configuration = config.get_section(config.config_ini_section, {})
+    configuration["sqlalchemy.url"] = database_url
+    
+    connectable = async_engine_from_config(
+        configuration,
+        prefix="sqlalchemy.",
+        poolclass=pool.NullPool,
+    )
+
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+    await connectable.dispose()
+
+
+def run_migrations_online() -> None:
+    """
+    Run migrations in 'online' mode.
+    
+    For async SQLAlchemy, we use asyncio to run async migrations.
+    """
+    import asyncio
+    
+    asyncio.run(run_async_migrations())
+
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    run_migrations_online()

alembic/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, Sequence[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:
+    """Upgrade schema."""
+    ${upgrades if upgrades else "pass"}
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    ${downgrades if downgrades else "pass"}

alembic/versions/7ac28bbbc5ee_initial_migration.py

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+"""Initial migration
+
+Revision ID: 7ac28bbbc5ee
+Revises: 
+Create Date: 2025-12-02 00:26:38.350265
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '7ac28bbbc5ee'
+down_revision: Union[str, Sequence[str], None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # Create users table
+    op.create_table(
+        'users',
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('username', sa.String(length=255), nullable=True),
+        sa.Column('first_name', sa.String(length=255), nullable=True),
+        sa.Column('last_name', sa.String(length=255), nullable=True),
+        sa.Column('is_admin', sa.Boolean(), nullable=True),
+        sa.Column('is_blocked', sa.Boolean(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('updated_at', sa.DateTime(), nullable=True),
+        sa.PrimaryKeyConstraint('user_id', name=op.f('pk_users')),
+        sa.UniqueConstraint('user_id', name=op.f('uq_users_user_id'))
+    )
+    op.create_index(op.f('ix_users_user_id'), 'users', ['user_id'], unique=False)
+    
+    # Create tasks table
+    op.create_table(
+        'tasks',
+        sa.Column('id', sa.BigInteger(), nullable=False, autoincrement=True),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('task_type', sa.String(length=50), nullable=False),
+        sa.Column('status', sa.String(length=50), nullable=True),
+        sa.Column('url', sa.Text(), nullable=True),
+        sa.Column('file_path', sa.String(length=500), nullable=True),
+        sa.Column('progress', sa.Integer(), nullable=True),
+        sa.Column('error_message', sa.String(1000), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('updated_at', sa.DateTime(), nullable=True),
+        sa.Column('completed_at', sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(['user_id'], ['users.user_id'], name=op.f('fk_tasks_user_id_users')),
+        sa.PrimaryKeyConstraint('id', name=op.f('pk_tasks'))
+    )
+    op.create_index(op.f('ix_tasks_created_at'), 'tasks', ['created_at'], unique=False)
+    op.create_index(op.f('ix_tasks_status'), 'tasks', ['status'], unique=False)
+    op.create_index(op.f('ix_tasks_user_id'), 'tasks', ['user_id'], unique=False)
+    
+    # Create downloads table
+    op.create_table(
+        'downloads',
+        sa.Column('id', sa.Integer(), nullable=False, autoincrement=True),
+        sa.Column('task_id', sa.BigInteger(), nullable=False),
+        sa.Column('url', sa.Text(), nullable=False),
+        sa.Column('download_type', sa.String(length=50), nullable=False),
+        sa.Column('file_path', sa.String(length=500), nullable=True),
+        sa.Column('file_size', sa.Integer(), nullable=True),
+        sa.Column('duration', sa.Integer(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(['task_id'], ['tasks.id'], name=op.f('fk_downloads_task_id_tasks')),
+        sa.PrimaryKeyConstraint('id', name=op.f('pk_downloads'))
+    )
+    op.create_index(op.f('ix_downloads_id'), 'downloads', ['id'], unique=False)
+    
+    # Create otp_codes table
+    op.create_table(
+        'otp_codes',
+        sa.Column('id', sa.Integer(), nullable=False, autoincrement=True),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.Column('code', sa.String(length=6), nullable=False),
+        sa.Column('expires_at', sa.DateTime(), nullable=False),
+        sa.Column('used', sa.Boolean(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(['user_id'], ['users.user_id'], name=op.f('fk_otp_codes_user_id_users')),
+        sa.PrimaryKeyConstraint('id', name=op.f('pk_otp_codes'))
+    )
+    op.create_index(op.f('ix_otp_codes_code'), 'otp_codes', ['code'], unique=False)
+    op.create_index(op.f('ix_otp_codes_expires_at'), 'otp_codes', ['expires_at'], unique=False)
+    op.create_index(op.f('ix_otp_codes_id'), 'otp_codes', ['id'], unique=False)
+    op.create_index(op.f('ix_otp_codes_used'), 'otp_codes', ['used'], unique=False)
+    op.create_index(op.f('ix_otp_codes_user_id'), 'otp_codes', ['user_id'], unique=False)
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # Drop tables in reverse order (respecting foreign key constraints)
+    op.drop_index(op.f('ix_otp_codes_user_id'), table_name='otp_codes')
+    op.drop_index(op.f('ix_otp_codes_used'), table_name='otp_codes')
+    op.drop_index(op.f('ix_otp_codes_id'), table_name='otp_codes')
+    op.drop_index(op.f('ix_otp_codes_expires_at'), table_name='otp_codes')
+    op.drop_index(op.f('ix_otp_codes_code'), table_name='otp_codes')
+    op.drop_table('otp_codes')
+    
+    op.drop_index(op.f('ix_downloads_id'), table_name='downloads')
+    op.drop_table('downloads')
+    
+    op.drop_index(op.f('ix_tasks_user_id'), table_name='tasks')
+    op.drop_index(op.f('ix_tasks_status'), table_name='tasks')
+    op.drop_index(op.f('ix_tasks_created_at'), table_name='tasks')
+    op.drop_table('tasks')
+    
+    op.drop_index(op.f('ix_users_user_id'), table_name='users')
+    op.drop_table('users')