管理器提供来自文件而不是数据库的查询集

发布于 2024-09-15 13:56:01 字数 332 浏览 5 评论 0原文

我想重写管理器类，以便允许将内容数据从文本文件（此处为“/one directory/myPrefix_*”）加载到内容字段中，而不是从数据库表中加载。

class Things(model.Models):
    file    = CharField(max_length = 25, primary key = True)
    content = TextField()
    objects = myManager("/one directory/", "myPrefix_")

如果可能的话，我很乐意在管理站点中使用此类。

我的疯狂梦想可能实现吗？

原文

I would like to override the manager class in order to allow content data to be loaded from text files (here on of "/one directory/myPrefix_*") into content field instead of from a database table.

class Things(model.Models):
    file    = CharField(max_length = 25, primary key = True)
    content = TextField()
    objects = myManager("/one directory/", "myPrefix_")

I would appreciate to use this class in the admin site, if possible.

Is my wild dream possible?

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懒猫 2024-09-22 13:56:02

我将通过将对象重命名为 _objects，然后创建一个属性函数来加载数据来解决这个问题。类似下面的代码应该可以满足您的需要...

class Things(model.Models):
    file    = CharField(max_length = 25, primary key = True)
    content = TextField()
    _objects = CharField(max_length = 50)

    @property
    def objects(self):
        return load_content_from("/one directory/myPrefix_" + self._objects)

如果您想查看管理站点中文件的内容，那么您可能需要创建自己的字段类型（请参阅 http://code.djangoproject.com/browser/django/trunk/django/db/models/fields ）。

I would solve this by renaming objects to _objects, and then creating a property function to load the data. Something like the code below should do what you need...

class Things(model.Models):
    file    = CharField(max_length = 25, primary key = True)
    content = TextField()
    _objects = CharField(max_length = 50)

    @property
    def objects(self):
        return load_content_from("/one directory/myPrefix_" + self._objects)

If you want to see the content from the files in the admin site then you'll probably need to create your own field type (see http://code.djangoproject.com/browser/django/trunk/django/db/models/fields).

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