django客户管理系统-使用modelform对HTML标签统一添加样式

给HTML标签统一添加class="form-control"

from django import forms
from crm import models

#创建客户Form类，继承forms.ModelForm
class CustomerForm(forms.ModelForm):
    class Meta:
        model = models.Customer
        fields = '__all__'

#重写初始化方法
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)

        for filed in self.fields.values():
            filed.widget.attrs['class'] = 'form-control'

有一些HTML标签不需要class="form-control"

def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        for filed in self.fields.values():
            #打印type找到不需要添加class的类，然后进行导入
            print(filed,type(filed))
            #使用isinstance方法判断
            if isinstance(filed, MultiSelectFormField):
                continue
            filed.widget.attrs['class'] = 'form-control'
            filed.widget.attrs['autocomplete'] = 'off'