109 lines
2.9 KiB
Python
109 lines
2.9 KiB
Python
from logging.config import fileConfig
|
|
|
|
from sqlalchemy import engine_from_config
|
|
from sqlalchemy import pool
|
|
|
|
from alembic import context
|
|
|
|
# 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)
|
|
|
|
# add your model's MetaData object here
|
|
# for 'autogenerate' support
|
|
# from myapp import mymodel
|
|
# target_metadata = mymodel.Base.metadata
|
|
target_metadata = None
|
|
|
|
# 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()
|
|
|
|
|
|
''' 修改点
|
|
from models.modelclass_b import Base
|
|
target_metadata = Base.metadata
|
|
|
|
def run_migrations_online():
|
|
url = "sqlite:///../databases/db_b.db"
|
|
connectable = create_engine(url)
|
|
# 保持其他代码不变
|
|
'''
|
|
import os
|
|
from alembic import context
|
|
from sqlalchemy import create_engine
|
|
from logging.config import fileConfig
|
|
from models.shared import Base as BaseShared
|
|
from models.scrapy import Base as BaseScrapy
|
|
|
|
# 合并元数据
|
|
from sqlalchemy import MetaData
|
|
target_metadata = MetaData()
|
|
for t in BaseShared.metadata.tables.values():
|
|
t.tometadata(target_metadata)
|
|
for t in BaseScrapy.metadata.tables.values():
|
|
t.tometadata(target_metadata)
|
|
|
|
home_dir = os.path.expanduser("~")
|
|
global_share_data_dir = f'{home_dir}/sharedata/sqlite'
|
|
|
|
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.
|
|
|
|
connectable = engine_from_config(
|
|
config.get_section(config.config_ini_section, {}),
|
|
prefix="sqlalchemy.",
|
|
poolclass=pool.NullPool,
|
|
)
|
|
"""
|
|
|
|
url = f"sqlite:///{global_share_data_dir}/test.db"
|
|
connectable = create_engine(url)
|
|
|
|
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()
|