Creating a model instance using currently logged in user

[Simon Connah]

Hi,

Apologies as this is a newbie question.

I have a Model, a CBV CreateView and a ModelForm.

The ModelForm is set to use the model, and the model has a field called author which is a ForeignKey to default Django auth User model.

I have removed the author field from the ModelForm as if I allow it the form widget shows a list of all of the registered users on the website.

What I need to do is pre-populate the ModelForm with self.request.user from the CreateView. I've tried doing it in the form_valid() method but can't seem to get it working. As soon as a user creates an instance of the Model, I want the author to always equal self.request.user.

I have a feeling you filter the ModelForm only to show the logged in user but I'm a bit stuck on that front. Perhaps you have to pre-populate the field in the ModelForm and then use a HiddenInput for the author field in the ModelForm?

Any help would be appreciated.

Thank you.

[Daniel Roseman]

No, the right approach is to do it in form_valid as you tried initially. This is explicitly documented: https://docs.djangoproject.com/en/2.0/topics/class-based-views/generic-editing/#models-and-request-user

If you're having trouble, you need to be more specific than "I can't get it working".

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DR. 

[Simon Connah]

Hi,

Sorry. When I wrote that message I wasn't thinking properly. After a sleep and a bit of Googling, I sorted the issue out. In the future, I'll be much more explicit about my problems. Just goes to show how important sleep is when programming :).

Thank you for your response though. At least it has confirmed to me that form_valid() is the correct location for things like this.

I seem to have a tendency to miss important details in the Django documentation for some reason.

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