Django表单模板错误
我给自己写了一份表格:Django表单模板错误,django,forms,templates,Django,Forms,Templates,我给自己写了一份表格: class Autopoweroff_Form(forms.Form): autopoweroff_groups = forms.CharField(required=True) autopoweroff_groups_hosts = forms.CharField(required=True) autopoweroff_groups_start = forms.CharField(required=True) autopoweroff_g
class Autopoweroff_Form(forms.Form):
autopoweroff_groups = forms.CharField(required=True)
autopoweroff_groups_hosts = forms.CharField(required=True)
autopoweroff_groups_start = forms.CharField(required=True)
autopoweroff_groups_end = forms.CharField(required=True)
autopoweroff_groups_startup_delay = forms.CharField(required=True)
autopoweroff_groups_idle_time = forms.CharField(required=True)
现在我知道我不必显式地设置reuqired=True,但请暂时忍受它。
不管怎样,让我们继续前进
现在,由于我讨厌在视图中执行验证等操作,我刚刚为该表单定义了一个更新函数:
def update(self, data):
if not self.is_bound and data is not None:
raise Exception()
if self.is_valid():
curr_group = self.cleaned_data['autopoweroff_groups']
...
在我看来,就这样称呼它:
if request.method == 'POST':
form = Autopoweroff_Form(data=request.POST)
form.update(data=request.POST)
return HttpResponseRedirect('/admin/thin/create_autopoweroff')
else:
form = Autopoweroff_Form()
...
现在的问题是,如果我没有在表单中键入任何内容,表单将按原样返回,而不会显示任何错误。我也知道它不会做任何事情,因为:
事实上,如果表单中有任何错误,Django当前将完全删除已清理的_数据字典。然而,这种行为在将来可能会改变,因此首先清理自己的身体并不是一个坏主意
如果我尝试:
def update(self, data):
if not self.is_bound and data is not None:
raise Exception()
if self.is_valid():
curr_group = self.cleaned_data['autopoweroff_groups']
...
else:
print self.errors
我得到了我希望在模板中看到的错误。
我也试过:
def clean_autopoweroff_groups(self):
autopoweoff_groups = self.cleaned_data.get('autopoweroff_groups', "")
if autopoweoff_groups == '':
print "Validation Error"
raise forms.ValidationError('Please Enter A Name')
return autopoweroff_groups
我到底做错了什么
更新:
我认为:
if request.method == 'POST':
form = Autopoweroff_Form(data=request.POST)
if form.is_valid():
form.update(data=request.POST)
return HttpResponseRedirect('/admin/thin/create_autopoweroff')
else:
form = Autopoweroff_Form()
在我的表单中,remove if self.is_valid()Django具有内置验证,因此您无需重写它:
class Autopoweroff_Form(forms.Form):
# I suggest not prefixing your fields with the name of the class
groups = forms.CharField(required=True)
hosts = forms.CharField(required=True)
start = forms.CharField(required=True)
end = forms.CharField(required=True)
delay = forms.CharField(required=True)
idle_time = forms.CharField(required=True)
在你看来:
if request.method == 'POST':
form = Autopoweroff_Form(data=request.POST)
if form.is_valid():
return HttpResponseRedirect('/admin/thin/create_autopoweroff')
else:
form = Autopoweroff_Form()
请注意,您在视图中调用的是_valid(),而不是表单
如果要对单个字段或一组字段执行如此复杂的验证,可以覆盖表单clean()
和clean[field\u name]()
方法
请看这里: