Sometimes, we want to get request data in a Python Django form.
In this article, we’ll look at how to get request data in a Python Django form.
How to get request data in a Python Django form?
To get request data in a Python Django form, we can pass the request object into the form.
For instance, we write
from django import forms
class UserForm(forms.Form):
email_address = forms.EmailField(
widget=forms.TextInput(
attrs={
'class': 'required'
}
)
)
def __init__(self, *args, **kwargs):
self.user = kwargs.pop('user', None)
super(UserForm, self).__init__(*args, **kwargs)
def clean_email_address(self):
email = self.cleaned_data.get('email_address')
if self.user and self.user.email == email:
return email
if UserProfile.objects.filter(email=email).count():
raise forms.ValidationError(
u'That email address already exists.'
)
return email
to create the UserForm form class.
Then in our view, we write
def someview(request):
if request.method == 'POST':
form = UserForm(request.POST, user=request.user)
if form.is_valid():
# ...
pass
else:
form = UserForm(user=request.user)
to create the UserForm instance with the user argument set to request.user to populate the form with user data.
And we pass in request.POST to populate the form with POST data.
Conclusion
To get request data in a Python Django form, we can pass the request object into the form.
