How To Update Existing Profile Django Model Form

Question

I am trying to allow users to be able to create and edit their profiles once they have registered. I am using a model form. What I need to do is have the employer model field be filled with the current user.

Here is my view:

def update_profile(request, username):
    if request.method == 'POST':
        edit_profile_form=EditProfileForm(request.POST)
        if edit_profile_form.is_valid():
            editprofile = edit_profile_form.save(commit=False)
            editprofile.employer = request.user.get_profile()
            editprofile.save()
    edit_profile_form = EditProfileForm()
    context = {'edit_profile_form':edit_profile_form,}
    return render(request, 'pandaboard/editprofile.html', context)

Here is my model:

class Profile(models.Model):
    employer = models.ForeignKey(User)
    company_name = models.CharField(max_length=100)
    company_description = models.TextField()
    company_website = models.URLField(max_length=200, blank=True)
    contact_email = models.EmailField(max_length=100)
    contact_name = models.CharField(max_length=100)
    def __unicode__(self):
        return self.company_name

Here is my Model Form

from django.forms import ModelForm
from pandaboard.models import JobPost, Profile
from django.contrib.auth.models import User

class EditProfileForm(ModelForm):
    class Meta:
        model = Profile
        fields = ['company_name','company_description','company_website','contact_email','contact_name']

Answer 1

To hydrate your form with values from your existing model instance, you need to use the instance argument on the model form:

def update_profile(request, username):
    profile = request.user.get_profile()
    edit_profile_form = EditProfileForm(request.POST or None,
        current_user=request.user, instance=profile)

    if request.method == 'POST':
        if edit_profile_form.is_valid():
            editprofile.save()

    context = {'edit_profile_form': edit_profile_form}
    return render(request, 'pandaboard/editprofile.html', context)

To inject the current request.user, you can override the __init__ of EditProfileForm, passing in an extra keyword argument (or arg, it doesn't really matter), and the popping it out of the kwargs before calling super so you aren't passing the ModelForm a keyword argument it isn't expecting:

class EditProfileForm(ModelForm):
    class Meta:
        model = Profile

    def __init__(self, *args, **kwargs):
        current_user = kwargs.pop('current_user')
        super(EditProfileForm, self).__init__(*args, **kwargs)
        self.fields['employer'] = current_user

Now you don't have to pass commit=False and manually set the value of employer in the view.