问题描述
我一直在尝试使用给定数量的字段来实现动态表单,并使用清晰的表单呈现这些表单。但是,在渲染页面时会出现以下错误:
Template error:
In template C:\Users\USER14\Documents\testprep\lib\site-packages\crispy_forms\templates\bootstrap4\errors.html,error at line 1
'int' object has no attribute 'get'
1 : {% if form.non_field_errors %}
2 : <div class="alert alert-block alert-danger">
3 : {% if form_error_title %}<h4 class="alert-heading">{{ form_error_title }}</h4>{% endif %}
4 : <ul class="m-0">
5 : {{ form.non_field_errors|unordered_list }}
6 : </ul>
7 : </div>
8 : {% endif %}
9 :
Traceback (most recent call last):
File "C:\Users\USER14\Documents\testprep\lib\site-packages\django\forms\forms.py",line 304,in non_field_errors
return self.errors.get(NON_FIELD_ERRORS,self.error_class(error_class='nonfield'))
File "C:\Users\USER14\Documents\testprep\lib\site-packages\django\forms\forms.py",line 170,in errors
self.full_clean()
File "C:\Users\USER14\Documents\testprep\lib\site-packages\django\forms\forms.py",line 372,in full_clean
self._clean_fields()
File "C:\Users\USER14\Documents\testprep\lib\site-packages\django\forms\forms.py",line 384,in _clean_fields
value = field.widget.value_from_datadict(self.data,self.files,self.add_prefix(name))
File "C:\Users\USER14\Documents\testprep\lib\site-packages\django\forms\widgets.py",line 657,in value_from_datadict
getter = data.get
Exception Type: AttributeError at /upload/1/SingleCorrect/10/
Exception Value: 'int' object has no attribute 'get'
以下是我正在使用的代码片段。
views.py:
def uploadQP(request,qp,typeofq,numberOfquestion):
if request.method == 'POST':
form=UploadQuestions(repetitions=numberOfquestion,data=request.POST,files=request.FILES)
if form.is_valid():
if typeofq=='SingleCorrect':
for i in range(numberOfquestion):
files=SingleIntegerType()
files.QuestionPaper=get_object_or_404(QuestionPaper,pk=qp)
files.question=request.FILES['question_%d' % i]
files.correct_answer=request.POST['correct_answer_%d' % i]
files.QuestionNumber=request.POST['question_number_%d' % i]
files.save()
return redirect('create_q')
elif request.method=='GET':
form=UploadQuestions(numberOfquestion)
return render(request,'upload_q.html',{'form':form})
forms.py
class UploadQuestions(forms.Form):
def __init__(self,repetitions,*args,**kwargs):
super(UploadQuestions,self).__init__(*args,**kwargs)
for i in xrange(repetitions):
self.fields['question_number_%d' % i]=forms.IntegerField(label="Enter question number ",widget=forms.NumberInput(attrs={'class': 'form-control','placeholder': '1'}))
self.fields['question_%d' % i] = forms.ImageField(label="Select the Image")
self.fields['correct_answer_%d' % i] = forms.ChoiceField(label="Select the correct Option",initial=('A','A'),choices=SINGLE_CORRECT_OPTIONS,widget=forms.Select(attrs={'class': 'custom-select category','required': 'true'}))
models.py
class SingleIntegerType(models.Model):
question=models.ImageField(upload_to=create_path)
correct_answer=models.CharField(max_length=10,choices=SINGLE_CORRECT_OPTIONS)
QuestionNumber = models.IntegerField(null=True)
QuestionPaper=models.ForeignKey(QuestionPaper,on_delete=models.DO_nothing)
def __str__(self):
return str(self.correct_answer)
解决方法
views.py 中的代码片段已在注释的帮助下得到纠正。当前代码段提供了一种解决方法,除了使用表单集之外,还可以使用动态数量的表单字段。