向Django添加简单的自定义字段 - 如何写南方内省规则 [英] Adding Simple Custom Field to Django -- How to Write South Introspection Rules

问题描述

我正在尝试添加一个使用 South 的Django项目的自定义字段。因此，我正在尝试（首次）撰写南方内省规则。我相信我的情况是最简单的，因为我只是扩展一个CharField。具体来说：

  class ColorField（models.CharField）：
 def __init __（self，* args，** kwargs） ：
 kwargs ['max_length'] = 10 
 super（ColorField，self）.__ init __（* args，** kwargs）
 
 def formfield（self，** kwargs） ：
 kwargs ['widget'] = ColorPickerWidget 
 return super（ColorField，self）.formfield（** kwargs）
  

这是一个Django片段，名为 jQuery颜色选择器模型字段对于那些感兴趣的人来说，

由于我没有添加任何新的属性，我相信我只需要添加以下代码行：

  from south.modelsinspector import add_introspection_rules 
 add_introspection_rules（[]，[^ myproject\.myapp\.models\ColorField]）
  

很明显，但他们应该去哪里？此外，我的假设是，这是我必须做的正确吗？

我已经审查了这里发布的几个问题，但大多数处理更复杂的内省。 >

Per http://south.readthedocs.org/en/latest/customfields.html#where-to-put-the-code ，我已经尝试将代码放在我的models.py文件的顶部，其中自定义字段被定义。但是这没有起作用。

解决方案

简单的回答：是的，代码应该放在models.py文件中，定义。正确的代码是：

  from south.modelsinspector import add_introspection_rules 
 add_introspection_rules（[]，[^ myapp\ .models\.ColorField]）
  

不知道为什么我把项目名称放在那里。

I am trying to add a custom field to my Django project that uses South. Because of this, I am trying (for the first time) to write introspection rules for South. I believe my case is the simplest possible as I am simply extending a CharField. Specifically:

class ColorField(models.CharField):
    def __init__(self, *args, **kwargs):
        kwargs['max_length'] = 10
        super(ColorField, self).__init__(*args, **kwargs)

    def formfield(self, **kwargs):
        kwargs['widget'] = ColorPickerWidget
        return super(ColorField, self).formfield(**kwargs)

This is from a Django snippet called jQuery color picker model field for those interested.

Since I am not adding any new attributes, I believe I only have to add these lines of code:

from south.modelsinspector import add_introspection_rules
add_introspection_rules([], ["^myproject\.myapp\.models\.ColorField"])

It is probably obvious, but where should they go? Also, is my assumption that this is all I have to do correct?

I have reviewed several questions posted here, but most deal with much more complex introspections.

Per http://south.readthedocs.org/en/latest/customfields.html#where-to-put-the-code, I have tried puttin the code at the top of my models.py file where the custom field is defined. But this has not worked.

解决方案

Simple answer: yes, the code should go in the models.py file where the field was defined. The correct code is:

from south.modelsinspector import add_introspection_rules
add_introspection_rules([], ["^myapp\.models\.ColorField"])

Not sure why I was putting the project name in there.

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