mirror of
https://github.com/open-webui/open-webui
synced 2025-06-04 03:37:35 +00:00
de7ec73a47
- Changed comment in db.py to clarify setting schema to None for SQLite. - Updated comment in env.py to specify that schema settings are applied only in PostgreSQL.
106 lines
3.1 KiB
Python
106 lines
3.1 KiB
Python
from logging.config import fileConfig
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from alembic import context
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from open_webui.internal.db import Base
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from open_webui.env import DATABASE_URL
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from sqlalchemy import engine_from_config, pool, text
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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, disable_existing_loggers=False)
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# add your model's MetaData object here
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# for 'autogenerate' support
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# from myapp import mymodel
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# target_metadata = mymodel.Base.metadata
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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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DB_URL = DATABASE_URL
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if DB_URL:
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config.set_main_option("sqlalchemy.url", DB_URL.replace("%", "%%"))
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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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# Configure for offline mode with proper schema support
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configure_kwargs = {
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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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# Add schema configuration if target_metadata.schema is set
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if target_metadata.schema:
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configure_kwargs["version_table_schema"] = target_metadata.schema
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context.configure(**configure_kwargs)
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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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if target_metadata.schema and connection.dialect.name == 'postgresql':
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# Applying schema settings only in PostgreSQL
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connection.execute(
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text(f"SET search_path TO {target_metadata.schema}, public")
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)
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context.configure(
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connection=connection,
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target_metadata=target_metadata,
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version_table_schema=target_metadata.schema,
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)
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else:
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# For SQLite, ignore schema and use default behavior
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context.configure(
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connection=connection,
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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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connection.commit()
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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()
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