django框架ModelForm组件用法详解

from django import forms
class UserModelForm(forms.ModelForm):

model = models.UserInfo

fields='__all__'  #显示所有，常用的方式

exclude=['password'] #排除某个字段

fields=['username','password','confirm_password','email','gender','depart'] #此表中的字段决定了页面显示的排列顺序

 widgets = {
      'username': forms.TextInput(attrs={'class': 'form-control', 'placeholder': '用户名'}),
      'password': forms.PasswordInput(attrs={'class': 'form-control', 'placeholder': '密码'}),
      'email': forms.EmailInput(attrs={'class': 'form-control', 'placeholder': '邮箱'}),
      'gender': forms.Select(attrs={'class': 'form-control'}),
      'depart': forms.Select(attrs={'class': 'form-control'}),
    }

    error_messages = {
      'email':{
        'required':'邮箱不能为空',
        'invalid':'邮箱格式错误',
      }
    }

labels={"username":"用户名","password":"密码"}

def clean_confirm_password(self): #'clean_'加上字段名 这里先使用局部钩子

return confirm

def user_add(request):
  if request.method == 'GET':
    form = UserModelForm() #最开始访问的时候是没有数据的
    return render(request, 'user_form.html', {'form':form})
  form = UserModelForm(data=request.POST) #传入数据
  if form.is_valid(): #进行校验
    print(form.cleaned_data)
    form.save()
    return redirect('/crm/user/list/')
  return render(request, 'user_form.html', {'form': form})

#print(form.cleaned_data)
{'username': 'lu5', 'password': '123', 'gender': 1, 'depart': <Department: 部门-1>}
#print(form.errors)
<ul class="errorlist"><li>confirm_password<ul class="errorlist"><li>两次密码输入不一致，请重新输入</li></ul></li><li>email<ul class="errorlist"><li>邮箱格式错误</li></ul></li></ul>

def user_edit(request,nid):
  obj = models.UserInfo.objects.filter(id=nid).first()
  if request.method == 'GET':
    form = UserModelForm(instance=obj) #注意此处
    return render(request, 'user_form.html', {'form':form})
  form = UserModelForm(data=request.POST,instance=obj) #注意此处
  if form.is_valid():
    form.save()
    return redirect('/crm/user/list/')
  return render(request, 'user_form.html', {'form': form})

LANGUAGE_CODE = 'zh-hans'
# LANGUAGE_CODE = 'en-us'