4a875f5f83
- Added Python path configuration in migrations/env.py to correctly import app modules - Fixed SQLite database path configuration - Fixed migration revision ID format - Added proper error handling for imports Generated with BackendIM... (backend.im)
99 lines
2.8 KiB
Python
99 lines
2.8 KiB
Python
from logging.config import fileConfig
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from sqlalchemy import engine_from_config
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from sqlalchemy import pool
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from alembic import context
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from pathlib import Path
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import sys
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import os
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# Get the directory containing this file (migrations directory)
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migrations_dir = os.path.dirname(os.path.abspath(__file__))
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# Get the root project directory (parent of migrations directory)
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project_root = os.path.dirname(migrations_dir)
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# Add the project root to sys.path
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sys.path.insert(0, project_root)
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# this is the Alembic Config object, which provides
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# access to the values within the .ini file in use.
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config = context.config
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# Interpret the config file for Python logging.
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# This line sets up loggers basically.
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fileConfig(config.config_file_name)
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# Import Base after adding project_root to sys.path
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try:
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from app.db.base import Base
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target_metadata = Base.metadata
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except ImportError as e:
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print(f"Import error: {e}")
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# Fallback to direct import if module structure is an issue
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sys.path.append(os.path.join(project_root, 'app'))
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from db.base import Base
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target_metadata = Base.metadata
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# other values from the config, defined by the needs of env.py,
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# can be acquired:
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# my_important_option = config.get_main_option("my_important_option")
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# ... etc.
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# Ensure the DB directory exists
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DB_DIR = Path("/app/storage/db")
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DB_DIR.mkdir(parents=True, exist_ok=True)
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# Override sqlalchemy.url from the INI file
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DB_PATH = DB_DIR / "db.sqlite"
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config.set_main_option('sqlalchemy.url', f"sqlite:///{DB_PATH}")
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def run_migrations_offline():
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"""Run migrations in 'offline' mode.
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This configures the context with just a URL
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and not an Engine, though an Engine is acceptable
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here as well. By skipping the Engine creation
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we don't even need a DBAPI to be available.
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Calls to context.execute() here emit the given string to the
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script output.
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"""
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url = config.get_main_option("sqlalchemy.url")
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context.configure(
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url=url,
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def run_migrations_online():
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"""Run migrations in 'online' mode.
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In this scenario we need to create an Engine
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and associate a connection with the context.
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"""
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connectable = engine_from_config(
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config.get_section(config.config_ini_section),
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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with connectable.connect() as connection:
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context.configure(
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connection=connection, target_metadata=target_metadata
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)
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with context.begin_transaction():
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context.run_migrations()
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online() |