(隐藏字段 ID)选择一个有效的选项。该选择不是可用的选择之一。 (姜戈)
当我尝试提交两个表单集时收到此错误。填写表单并单击“保存”按钮后,出现错误:
(隐藏字段 ID)选择有效选项。该选择不是可用的选择之一。
我正在尝试创建动态表单,以便用户在单击“添加”按钮时可以添加新的部分以及该部分内的新讲座。添加新表单功能效果很好,只是将其保存到数据库时遇到问题。
Views.py
def addMaterials(request, pk):
course = Course.objects.get(id=pk)
sections = CourseSection.objects.filter(course_id=pk)
materials = CourseMaterial.objects.filter(section__in=sections)
SectionFormSet = modelformset_factory(CourseSection, form=SectionForm, extra=0)
sectionformset = SectionFormSet(request.POST or None, queryset=sections)
MaterialFormSet = modelformset_factory(CourseMaterial, form=MaterialForm, extra=0)
materialformset = MaterialFormSet(request.POST or None, queryset=materials)
context = {
'course': course,
'sectionformset': sectionformset,
'materialformset': materialformset,
}
if request.method == "POST":
if all([sectionformset.is_valid() and materialformset.is_valid()]):
for sectionform in sectionformset:
section = sectionform.save(commit=False)
section.course_id = course.id
section.save()
for materialform in materialformset:
material = materialform.save(commit=False)
print(material)
material.section_id = section #section.id or section.pk also doesn't work
material.save()
return('success')
return render(request, 'courses/add_materials.html', context)
Forms.py
class SectionForm(forms.ModelForm):
class Meta:
model = CourseSection
fields = ['section_name', ]
exclude = ('course_id', )
class MaterialForm(forms.ModelForm):
class Meta:
model = CourseMaterial
fields = ['lecture_name', 'contents']
第二个表单集(materialformset)需要第一个表单集中的部分 id,因此视图中有两个循环。 有人可以帮我解决这个问题吗?我不知道如何解决它。
I'm receiving this error when I try to submit two formsets. After I fill the form and click the save button, it gives the error:
(Hidden field id) Select a valid choice. That choice is not one of the available choices.
I'm trying to create dynamic form so that the user can add new sections and also new lectures inside the section when they click "Add" button. The adding new form function works well, I just have problem saving it to the database.
Views.py
def addMaterials(request, pk):
course = Course.objects.get(id=pk)
sections = CourseSection.objects.filter(course_id=pk)
materials = CourseMaterial.objects.filter(section__in=sections)
SectionFormSet = modelformset_factory(CourseSection, form=SectionForm, extra=0)
sectionformset = SectionFormSet(request.POST or None, queryset=sections)
MaterialFormSet = modelformset_factory(CourseMaterial, form=MaterialForm, extra=0)
materialformset = MaterialFormSet(request.POST or None, queryset=materials)
context = {
'course': course,
'sectionformset': sectionformset,
'materialformset': materialformset,
}
if request.method == "POST":
if all([sectionformset.is_valid() and materialformset.is_valid()]):
for sectionform in sectionformset:
section = sectionform.save(commit=False)
section.course_id = course.id
section.save()
for materialform in materialformset:
material = materialform.save(commit=False)
print(material)
material.section_id = section #section.id or section.pk also doesn't work
material.save()
return('success')
return render(request, 'courses/add_materials.html', context)
Forms.py
class SectionForm(forms.ModelForm):
class Meta:
model = CourseSection
fields = ['section_name', ]
exclude = ('course_id', )
class MaterialForm(forms.ModelForm):
class Meta:
model = CourseMaterial
fields = ['lecture_name', 'contents']
The second formset which is materialformset need the section id from the first formset hence why there is two loop in views.
Can someone help me to solve this. I'm not sure how to fix it.
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我是 django 的新手,但我不得不面对同样的问题。我的解决方案是单独处理“views.py”中的每个表单集。
在 template.html 中,为您拥有的每个表单集创建一个标签,然后在该标签内放置
(请注意,名称很重要,必须与您提交的表格不同)。
然后在views.py中,改为编写
if all([sectionformset.is_valid() and Materialformset.is_valid()])
,尝试如下:I'm new to django but I had to face with the same problem. My solution was to handle singularly each formset inside 'views.py'.
In the template.html, create a tag for each formset you have, than inside that tag put
<input type="submit" name="form1">
(Note that name is important and must be different with the respect of the form you are submitting).Then in views.py, instead for writing
if all([sectionformset.is_valid() and materialformset.is_valid()])
, try like this: