问题
If you have multiple forms
from django import forms
class NameForm(forms.Form):
your_name = forms.CharField(label='Your name', max_length=100)
class SecondNameForm(forms.Form):
your_name = forms.CharField(label='Your name', max_length=100)
is there a way that, in your template, you can figure out if form in inside context belongs to NameForm or SecondNameForm
I have a custom widget that in its html, it uses the id="" identifier (which should be unique in the whole html).
I want to assign the id to something like
id="{{form.name}}_{{field.val}}" or
id="{{form.id}}_{{field.val}}" or
where {{form.name}} and {{form.id}} is some value associated with the form instance and not the form's content.
回答1:
If you use a unique prefix for each form, then the fields will all have unique ids.
form1 = NameForm(prefix='name')
form2 = SecondNameForm(prefix='second_name')
回答2:
In your view, you can do form.__class__.__name__ but this doesn't work inside a template because django templates do not recognize variables that begin with __
The best thing to do in your case would be to simply create an extra context variable that identifies the form name
id="{{form_name}}_{{field.val}}"
回答3:
If you are working with forms you can get the id from the templates
{{ form.instance.pk ]}
来源：https://stackoverflow.com/questions/40494064/django-get-the-form-name-or-id-from-template