# models.py

class ProfilePic(models.Model):
user = models.ForeignKey(Member, related_name='%(class)s_user', null=True)
text = models.TextField(max_length=4096)
thumbnail = models.FileField(upload_to='media', null=True)


class Member(models.Model):
        username = models.CharField(max_length=16, primary_key=True)
        password = models.CharField(max_length=16)
        profile = models.OneToOneField(Profile, null=True)
        following = models.ManyToManyField("self", symmetrical=True)


# forms.py

from django import forms
from .models import ProfilePic


class UploadFileForm(forms.ModelForm):
    class Meta:
       model = ProfilePic
       fields = ['text','thumbnail']


# views.py

def profile(request):
username = request.session['username']
member_obj = Member.objects.get(pk=username)
if request.POST:
    invitations = Invitation.objects.filter(to_user=username)
    form = UploadFileForm(request.POST,request.FILES, instance=member_obj)
    form.save()
    picture = ProfilePic.objects.all()
    return render(request, 'social/profile.html', {
        'appname': appname,
        'username': username,
        'invitations':invitations,
        'picture' : picture,
        'form' : form,
        'loggedin': True}
         )