Django image:this field is required - django

Question

I am trying to send a form with an image, I select the image but I always get: "this field is required" when I send the form.
here is my code:
models.py:
from django.db import models
from django.contrib.auth.models import User
class Picture(models.Model):
created_at = models.DateField(auto_now_add=True)
update_at = models.DateField(auto_now=True)
image = models.ImageField()
caption = models.CharField(max_length=50)
author = models.ForeignKey('auth.user', on_delete=models.CASCADE, related_name='pictures')
forms.py:
from django import forms
class PictureForm(forms.Form):
image = forms.ImageField()
caption = forms.CharField(max_length=50)
views.py:
from django.shortcuts import render
from django.http import HttpResponseRedirect
from .models import Picture
from .forms import PictureForm
from django.contrib.auth.models import User
def pictures_view(request):
pictures = Picture.objects.all()
context = {'pictures': pictures}
return render(request, 'pictures/pictures.html', context)
def picture_form_view(request):
if request.method == 'POST':
form = PictureForm(request.POST, request.FILES)
if form.is_valid():
clean_data = form.cleaned_data()
Picture.objects.create(clean_data)
return HttpResponseRedirect('/')
else:
form = PictureForm()
return render(request, 'pictures/picture_form.html', {'form': form})
HTML:
{% extends 'pictures/base.html' %}
{% block title %}publish{% endblock %}
{% block content %}
<form class="form" action="" method="post">
{% csrf_token %}
{{ form }}
<input type="submit" value="Submit">
</form>
{% endblock %}
And a Little question, how can I complete the field author automaticly with the actual user?

Answer 1

first of all ImageField in model takes one compulsory argument upload_to so in your models
class Picture(models.Model):
###
image = models.ImageField(upload_to='upload/to/path')
###
now in your view
def picture_form_view(request):
if request.method == 'POST':
form = PictureForm(request.POST, request.FILES)
if form.is_valid():
clean_data = form.cleaned_data()
Picture.objects.create(**clean_data)
return HttpResponseRedirect('/')
else:
form = PictureForm()
return render(request, 'pictures/picture_form.html', {'form': form})
and to save current logged in user as default override form_valid()
method in Form class like
def form_valid(self, form):
form.instance.created_by = self.request.user
return super().form_valid(form)

Answer 2

Try to set enctype to "multipart/form-data" in the form tag.
<form action="#" method="post" enctype="multipart/form-data">
input here ...
</form>