python - 使用表单访问 django 模板中的 m2m 字段值

Question

请帮助我使用表单访问模板中的 m2m 值

我的模型:

class Opportunity(models.Model):
    sfdc_id = models.PositiveIntegerField(null=True, blank=True)

class Event(models.Model):
    background = models.TextField(null=True, blank=True)
    account = models.ForeignKey(Account)
    opportunities = models.ManyToManyField(Opportunity, null=True, blank=True)

View .py

def event(request,event_id):
    if request.method == 'GET' :
        eventForm=EventForm(instance=Event.objects.get(pk=event_id))
        locationForm = LocationForm(prefix='location')
        return render(request,'events/event.html', {'eventForm': eventForm, 'locationForm': locationForm})

更新了模型表格:

class EventForm(ModelForm):
    account = ModelChoiceField(queryset=Account.objects.all())
    background = CharField(widget=Textarea(attrs={'class':'form-textarea resizeoff auto-resize js_auto_resize  default'}), required=False)
    opportunities = CharField(label='SalesForce ID', widget=TextInput(attrs={'class' : 'form-input'}), required=False)

在我的模板中，我尝试了以下代码，但不起作用

{% for attr in eventForm.opportunities.all %}
      <td>{{ attr.sfdc_id }}</td>
{% endfor %}

我已经尝试过了，但还是不行

{% for attr in eventForm.opportunities_set.all %}
      <td>{{ attr.sfdc_id }}</td>
{% endfor %}

Please help me!!!

Answer 1

opportunities = ModelMultipleChoiceField(widget=SelectMultiple(attrs={'class' : 'form-input'}),queryset=Opportinuty.objects.all(), label='SalesForce ID', required=False) 

...