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Home > Backend Development > Python Tutorial > Pyramid将models.py文件的内容分布到多个文件的方法

Pyramid将models.py文件的内容分布到多个文件的方法

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Release： 2016-06-16 08:46:04
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我们通过下面的文件结构，将models.py改成一个package.

复制代码 代码如下:

myapp
    __init__.py
    scripts
        __init__.py
        initialize_db.py
    models
        __init__.py
        meta.py
        foo.py
        moo.py

上面的 meta.py， 在代码中定义一个其它model文件共享Base和DBSession.

复制代码 代码如下:

Base = declarative_base()
DBSession = scoped_session(sessionmaker(extension=ZopeTransactionExtension))

foo.py和moo.py就是具体的model定义
foo.py 和moo.py 使用meta.py中定义的base

为了保证定义的model能够在程序中被启用，在models/__init__.py中引入它们:

复制代码 代码如下:

from .meta import DBSession
from .foo import Foo
from .moo import Moo
Related labels：
pyramid
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