1. 定义ModelForm类

#froms.py    
from django import forms
from app01.modles import User
 
class UserModelForm(forms.ModelForm):
    class Meta:
        model = User     #关联的model类
        fields = "__all__"      #或('name','email','user_type')    #验证哪些字段,"__all__"表示所有字段
        exclude = None          #排除的字段 ("id",)是元组
        labels = None           #提示信息
        help_texts = None       #帮助提示信息
        widgets = None          #自定义插件
#widgets = {
            'username': TextInput(attrs={'class': 'form-control', 'style': 'width:530px;', 'placeholder': u'必填项'}),}
error_messages = None #自定义错误信息(整体错误信息from django.core.exceptions import NON_FIELD_ERRORS) field_classes = None #自定义字段类(也阔以自定义字段) localized_fields = () #本地化,根据settings中TIME_ZONE设置的不同时区显示时间 2. ModelForm验证执行的过程 Form所有的钩子ModelForm都有。 is_valid() --> self.errors --> full_clean() --> self._clean_fields() --> clean_字段名(自定义方法)                           self._clean_form() -->  clean(self)                            self._post_clean() (整体错误) clean_字段名(自定义方法) 可以抛出异常 def clean_username(self): value = self.cleaned_data['username'] if value == 'root': return value else: raise ValidationError("你不是管理员!")

3.views.py 视图处理处理

def ueser_get(request):
if request.method == "POST":
        u_form = UserModelForm(request.POST)
        if u_form.is_valid():
            u_form.save()
            tips = u"增加成功!"
            display_control = ""
        else:
            tips = u"增加失败!"
            display_control = ""
        return render(request, "user_add.html", locals())
    else:
        display_control = "none"
        u_form = UserModelForm()
        return render(request, "user_add.html", locals())

4.user_add.html
u_form.as_p  # 生成列表