
Updated migrations/env.py to import Base from app.database.session instead of app.models, fixing the 'cannot import name Base' error.
112 lines
3.3 KiB
Python
112 lines
3.3 KiB
Python
import os
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import sys
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from logging.config import fileConfig
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from pathlib import Path
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from alembic import context
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from sqlalchemy import engine_from_config, pool
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# Add the project root directory to the Python path
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# This ensures that the 'app' module can be imported correctly
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project_root = str(Path(__file__).parents[1].absolute())
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if project_root not in sys.path:
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sys.path.insert(0, project_root)
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# For containerized environments where the app might be in a different location
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container_paths = [
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"/app/repo", # Common container path
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"/app", # Another common container path
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]
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for container_path in container_paths:
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if os.path.exists(container_path) and container_path not in sys.path:
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sys.path.insert(0, container_path)
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# Now we can import our application modules
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try:
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from app.core.config import settings # noqa: F401 - Used in later operations
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# Import Base from database.session where it's defined
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from app.database.session import Base
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except ImportError as e:
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print(f"Error importing app modules: {e}")
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print(f"Current sys.path: {sys.path}")
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print("Looking for app module in these directories:")
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for path in sys.path:
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if os.path.isdir(path):
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print(f" - {path}: {os.listdir(path)}")
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raise
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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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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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# add your model's MetaData object here
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# for 'autogenerate' support
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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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def run_migrations_offline() -> None:
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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() -> None:
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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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is_sqlite = connection.dialect.name == "sqlite"
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context.configure(
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connection=connection,
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target_metadata=target_metadata,
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render_as_batch=is_sqlite, # Important for SQLite
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compare_type=True,
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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() |