我正在尝试将动态选择列表绑定到ModelForm . 表单正确呈现 . 但是，当使用带有POST请求的表单时，我会返回一个空表单 . 我的目标是将该表单保存到数据库中（form.save（）） . 任何帮助将非常感激 .
Model
我正在使用多项选择字段（https://github.com/goinnn/django-multiselectfield）
from django.db import models
from multiselectfield import MultiSelectField
class VizInfoModel(models.Model):
tog = MultiSelectField()
vis = MultiSelectField()
Forms
class VizInfoForm(forms.ModelForm):
class Meta:
model = VizInfoModel
fields = '__all__'
def __init__(self,choice,*args,**kwargs):
super(VizInfoForm, self).__init__(*args,**kwargs)
self.fields['tog'].choices = choice
self.fields['vis'].choices = choice
View
实例化表单时从视图中传递选项 .
def viz_details(request):
options = []
headers = request.session['headers']
for header in headers :
options.append((header, header))
if request.method == 'POST':
form = VizInfoForm(options, request.POST)
#doesnt' get into the if statement since form is empty!
#choices are not bounded to the model although the form is perfectly rendered
if form.is_valid():
form.save()
return HttpResponseRedirect('/upload')
else:
#this works just fine
form = VizInfoForm(options)
return render(request, 'uploads/details.html', {'form': form})
Template
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
<p>Choose variables to toggle between</p>
{{ form.tog }}
<br></br>
<p>Choose variable to be visualized</p>
{{ form.vis }}
<br></br>
<button type="submit">Submit</button>
</form>
1 回答
你're saying Django doesn' t进入你的
if request.method == 'POST'区块 .这告诉我们你're not sending your request through the POST method. Your template probably has an error in it, maybe you haven' t指定了
form上的方法，或者你的按钮只是一个链接而不是提交？显示您的模板，以便我们可以说更多，除非这足以解决您的问题！