Django: upload image can't find uploaded image - django

Question

I have already tried searching stackoverflow, but couldn't find anything. My problem is that I cannot seem to find the folder where the pictures I upload is supposed to be. Seems like everything else works?
Here you can see my code:
Settings.py
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
Views.py
#login_required(login_url="/login/")
def model_form_upload(request):
if request.method == 'POST':
form = DocumentForm(request.POST, request.FILES,instance=request.user)
if form.is_valid():
form.save()
print("Form is valid")
return redirect('/questions/profile')
else:
form = DocumentForm(instance=request.user)
return render(request, 'questions/model_form_upload.html', {
'form': form
})
Urls.py
url(r'^upload/$', views.model_form_upload, name='upload')
Models.py
import os
def get_image_path(instance, filename):
return os.path.join('users/', str(instance.id), filename)
class Document(models.Model):
user = models.ForeignKey(User, on_delete=models.CASCADE)
profile_image = models.FileField(upload_to=get_image_path,
blank=True, null=True)
Forms.py
from questions.models import Document
class DocumentForm(forms.ModelForm):
class Meta:
model = Document
fields = ('profile_image',)
model_form_upload.html
{% extends 'questions/base.html' %}
{% block content %}
<form method="post" enctype="multipart/form-data">
{% csrf_token %}
{{ form.as_p }}
<button type="submit">Upload</button>
</form>
<p>Return to profile</p>
{% endblock %}