css - Django:对于扩展另一个 ModelForm 的 ModelForm 不显示 CSS 类

Question

我需要将 CSS 类分配给表单字段，我指的是这篇 SO 帖子: CSS styling in Django forms

但是，我无法让它与扩展另一个 ModelForm 的 ModelForm 一起工作。在下面的代码中，字段“title”和“base_title”应该分别具有类“title”和“base_title”，但是，当您检查 HTML 时，它们都没有得到任何类。任何意见，将不胜感激。谢谢。

这是我的代码:

模型.py:

from django.db import models

class BaseModel(models.Model):
    base_title = models.CharField(max_length=50, blank=True)


class MyModel(BaseModel):
    title = models.CharField(max_length=50, blank=True)

表单.py:

from django.forms import ModelForm, TextInput
from testproj.models import MyModel

class BaseModelForm(ModelForm):

    class Meta:
        model = MyModel
    fields = ("base_title",)
    widgets = {
        "base_title" : TextInput(attrs={"class" : "base_title"}),
    }

class MyModelForm(BaseModelForm):

    class Meta(BaseModelForm.Meta):
        model = MyModel
        fields = BaseModelForm.Meta.fields + ("title",)
        widgets = BaseModelForm.Meta.widgets.update({
            "title" : TextInput(attrs={"class" : "title"}),
        })

views.py:

from django.shortcuts import render_to_response
from django.template import RequestContext

from testproj.forms import MyModelForm

def index(request):

    form = MyModelForm()

    return render_to_response(
        "testproj/index.html",
        {
            "form": form,
        }, 
            context_instance=RequestContext(request)
    )

Answer 1

找出问题所在:不正确地更新小部件字典。MyModelForm 类应如下所示:

class MyModelForm(BaseModelForm):
    class Meta(BaseModelForm.Meta):
        model = MyModel
        fields = BaseModelForm.Meta.fields + ("title",)
        widgets = BaseModelForm.Meta.widgets
        widgets.update({
        "title" : TextInput(attrs={"class" : "title"}),
})