Python 在DefaultUserCreationForm-django中的模板中显示错误消息
我在HTML页面中显示错误消息时遇到问题。我使用Django的默认UserCreationForm作为注册页面。它有两个密码字段-一个是原件,另一个是确认密码。当用户输入不同的密码时,我得到/signup/而我希望在HTML页面中显示错误消息,说明密码不匹配。我已经浏览了文档,并在代码中添加了一些相关的行,我不知道哪里出了问题 以下是我的视图.py:Python 在DefaultUserCreationForm-django中的模板中显示错误消息,python,django,django-forms,Python,Django,Django Forms,我在HTML页面中显示错误消息时遇到问题。我使用Django的默认UserCreationForm作为注册页面。它有两个密码字段-一个是原件,另一个是确认密码。当用户输入不同的密码时,我得到/signup/而我希望在HTML页面中显示错误消息,说明密码不匹配。我已经浏览了文档,并在代码中添加了一些相关的行,我不知道哪里出了问题 以下是我的视图.py: def adduser(request): if request.method == 'POST': form = Use
def adduser(request):
if request.method == 'POST':
form = UserCreationForm(request.POST)
print(request.POST)
if(form.is_valid):
try:
user = employees.objects.get(emp_id=request.POST['username'] )
except employees.DoesNotExist:
user = None
print(user)
if( user != None ):
if request.POST['username'] in employees.objects.values_list('manager_id__emp_id',flat=True):
g = Group.objects.get(name='Managers')
newuser = form.save()
newuser.groups.add(g)
else:
g = Group.objects.get(name='Employees')
newuser = form.save()
newuser.groups.add(g)
return render(request,'login.html',{'form': form})
else:
form = UserCreationForm()
return render(request,'signup.html', {'form': form, 'msg': 'Enter valid employee id'})
else:
form = UserCreationForm()
return render(request,'signup.html', {'form': form})
这是我的signup.html:
<body>
<div class="container">
<div class="page-header">
<h1>Sign-up Here</h1>
</div>
{% block body %}
<form method="post">
{% csrf_token %}
<font color="orange" size="5px"><p> * Enter your Employee id, as username * </p></font>
{{ form.as_p }}
<font color="red"> {{ msg }} </font><br>
<font color="red"> {{ form.password1.errors }} </font><br>
<font color="red"> {{ form.password2.errors }} </font><br>
<br>
<button class="btn btn-success" type="submit"> Go! </button>
</form>
{% endblock %}
</div>
</body>
在这里注册
{%block body%}
{%csrf_令牌%}
*输入您的员工id,作为用户名*
{{form.as_p}}
{{msg}}
{{form.password1.errors}}
{{form.password2.errors}}
走!
{%endblock%}
问题出在这一行:
if(form.is_valid):
这不是测试表单验证的正确方法,
而是使用:
if form.is_valid():
另外,您不需要多次声明表单,它可以一次性完成。
像这样:
def adduser(request):
form = UserCreationForm(request.POST or None)
if request.method == 'POST':
print(request.POST)
if form.is_valid():
try:
user = employees.objects.get(emp_id=request.POST['username'] )
except employees.DoesNotExist:
user = None
print(user)
if( user != None ):
if request.POST['username'] in employees.objects.values_list('manager_id__emp_id',flat=True):
g = Group.objects.get(name='Managers')
newuser = form.save()
newuser.groups.add(g)
else:
g = Group.objects.get(name='Employees')
newuser = form.save()
newuser.groups.add(g)
return render(request,'login.html',{'form': form})
else:
form = UserCreationForm()
return render(request,'signup.html', {'form': form, 'msg': 'Enter valid employee id'})
return render(request,'signup.html', {'form': form})
{% if form.errors %}
{% for field in form %}
{% for error in field.errors %}
<div class="alert alert-danger">
<strong>{{ error|escape }}</strong>
</div>
{% endfor %}
{% endfor %}
{% for error in form.non_field_errors %}
<div class="alert alert-danger">
<strong>{{ error|escape }}</strong>
</div>
{% endfor %}
{% endif %}
并且可能存在不同类型的错误,场错误和非场错误,因此使用如下方法:
def adduser(request):
form = UserCreationForm(request.POST or None)
if request.method == 'POST':
print(request.POST)
if form.is_valid():
try:
user = employees.objects.get(emp_id=request.POST['username'] )
except employees.DoesNotExist:
user = None
print(user)
if( user != None ):
if request.POST['username'] in employees.objects.values_list('manager_id__emp_id',flat=True):
g = Group.objects.get(name='Managers')
newuser = form.save()
newuser.groups.add(g)
else:
g = Group.objects.get(name='Employees')
newuser = form.save()
newuser.groups.add(g)
return render(request,'login.html',{'form': form})
else:
form = UserCreationForm()
return render(request,'signup.html', {'form': form, 'msg': 'Enter valid employee id'})
return render(request,'signup.html', {'form': form})
{% if form.errors %}
{% for field in form %}
{% for error in field.errors %}
<div class="alert alert-danger">
<strong>{{ error|escape }}</strong>
</div>
{% endfor %}
{% endfor %}
{% for error in form.non_field_errors %}
<div class="alert alert-danger">
<strong>{{ error|escape }}</strong>
</div>
{% endfor %}
{% endif %}
{%if form.errors%}
{%形式的字段为%}
{%字段中有错误。错误%}
{{error | escape}}
{%endfor%}
{%endfor%}
{%表示表单中的错误。非\u字段\u错误%}
{{error | escape}}
{%endfor%}
{%endif%}
什么是表单操作?您的代码中还有一些问题/更正可以更正。@Vicmathur,因为它是一个内置表单,这不是必需的,而且它在不采取操作的情况下运行完全正常。@Prakhartravedi是这样吗?你能指出它们吗?