我想设置使用MINLENGTH与最大长度的输入标签的模板

Question

我的index.html

<div class="heading col-lg-6 col-md-12">
      
 
      <h2>New account registration</h2> 
 
     
 
      <form class="form-horizontal" action="regist_save/" method="POST">
      
 
       <div class="form-group-lg">
      
 
       <label for="id_username">username</label> 
 
       
     {{ regist_form.username }}
      
 
       </div>
     
      
 
       <div class="form-group-lg">
      
 
       <label for="id_email">email</label> 
 
       
      {{ regist_form.email }} 
 
       </div> 
 
       <div class="form-group-lg">
      
 
       <label for="id_password">password</label>
      
 
       {{ regist_form.password1 }}
      
 
       </div>
     
      
 
       <div class="form-group-lg"> 
 
       <label for="id_password">password（conformation）</label>
      
 
       {{ regist_form.password2 }} 
 
       <p class="help-block">{{ regist_form.password2.help_text }}</p>
      
 
       </div>
     
      
 
       <div class="form-group-lg"> 
 
       <div class="col-xs-offset-2"> 
 
       <button type="submit" class="btn btn-primary btn-lg">SUBMIT</button>
      
 
       <input name="next" type="hidden"/>
      
 
       </div> 
 
       </div> 
 
       {% csrf_token %}
      
 
      </form>
      
 
    </div>

写道，我想设置使用MINLENGTH与最大长度的用户名&密码输入模板tag.If我在HTML麦粒肿写道： ，它是

<form class="form-horizontal" action="regist_save/" method="POST">
      
 
       <div class="form-group-lg">
      
 
       <label for="id_username">username</label> 
 
       
  <input id="id_username" name="username" type="text" value="" minlength="5" maxlength="12" placeholder="username" class="form-control">    
 
       </div>
     
      
 
       <div class="form-group-lg">
      
 
       <label for="id_email">email</label> 
 
       
      {{ regist_form.email }} 
 
       </div> 
 
       <div class="form-group-lg">
      
 
       <label for="id_password">password</label>
      
 
       <input id="id_password1" name="password1" type="password1" value="" minlength="8" maxlength="12" placeholder="password1" class="form-control"> 
 
       </div>
     
      
 
       <div class="form-group-lg"> 
 
       <label for="id_password">password（conformation）</label>
      
 
       <input id="id_password2" name="password2" type="password2" value="" minlength="8" maxlength="12" placeholder="password2" class="form-control"> 
 
       <p class="help-block">{{ regist_form.password2.help_text }}</p>
      
 
       </div>
     
      
 
       <div class="form-group-lg"> 
 
       <div class="col-xs-offset-2"> 
 
       <button type="submit" class="btn btn-primary btn-lg">SUBMIT</button>
      
 
       <input name="next" type="hidden"/>
      
 
       </div> 
 
       </div> 
 
       {% csrf_token %}
      
 
      </form>
    

在forms.py

class RegisterForm(UserCreationForm): 
    class Meta: 
     model = User 
     fields = ('username', 'email','password1','password1',) 
    def __init__(self, *args, **kwargs): 
     super(RegisterForm, self).__init__(*args, **kwargs) 
     self.fields['username'].widget.attrs['class'] = 'form-control' 
     self.fields['email'].widget.attrs['class'] = 'form-control' 
     self.fields['password1'].widget.attrs['class'] = 'form-control' 
     self.fields['password2'].widget.attrs['class'] = 'form-control' 

在views.py

@require_POST 
def regist_save(request): 
    regist_form = RegisterForm(request.POST) 
    if regist_form.is_valid(): 
     user = regist_form.save(commit=False) 
     password = regist_form.cleaned_data.get('password') 
     user.set_password(password) 
     user.save() 
     login(request, user) 
     context = { 
      'user': request.user, 
     } 
     return redirect('detail') 

    context = { 
     'regist_form': regist_form, 
    } 
    return render(request, 'registration/regist.html', context) 

我想设定的用户名MINLENGTH = “5” &最大长度= “12” 和口令= MINLENGTH “8” &最大长度=“12 “。我想写在模板中，虽然我在谷歌搜索的方式，但我找不到它。我认为我可以通过模板做到这一点，但我误解它吗？我不能在模板中做到这一点？

Answer 1

您可以使用这些属性与您想要的极限，验证将相应工作

Working example on W3schools