Django returning blank page on POST - django

Question

This is almost certainly a newbie error but I can't work out what's wrong. I've read through the other similar questions on here but non seem to be quite the same.
I have a simple form which posts data but I always get a completely blank response.
Here's the code:
url.py
urlpatterns = patterns('shotgun.views',
# shotgun App URL patterns
url(r'^$', ControlPanelView.as_view(), name='index'),
)
form.py
class ProjectAssignmentForm(forms.Form):
projects = MultipleChoiceField(widget=forms.CheckboxSelectMultiple)
def __init__(self, user_projs, *args, **kwargs):
super(ProjectAssignmentForm, self).__init__(*args, **kwargs)
self.fields["projects"].choices = tuple([(item.name, item.name) for item in SGProject.objects.all() if item.name != "Template Project"])
self.fields["projects"].initial = user_projs
view.py
class ControlPanelView(SLBaseView):
template_name = "shotgun/index.html"
def get_context_data(self, **kwargs):
context = super(ControlPanelView, self).get_context_data(**kwargs)
sg_user = SGCustomNonProjectEntity01.objects.filter(code=self.request.user.get_full_name())[0]
projs = SGProject.objects.filter(Q(entities__entity_id=sg_user.id), Q(entities__type="CustomNonProjectEntity01"))
context["assigned_projs"] = projs
if self.request.method == "POST":
form = ProjectAssignmentForm(projs, self.request.POST)
if form.is_valid():
# update user projects logic
else:
form = ProjectAssignmentForm(projs)
context["pas_form"] = form
return context
template.html
<div class="full_width" >
<h4 class="no_pad" >{{ user.first_name|upper }}'S CONTROL PANEL</h4>
</div>
<div class="full_width top_tab">
<div class="border border_pad">
<h6>PROJECTS YOU ARE ASSIGNED TO</h6>
{% if assigned_projs %}
<form action="/intranet/shotgun/" method="post">{% csrf_token %}
<div class="border_pad">
{{ pas_form.projects.errors }}
{{ pas_form.projects }}
<input type="submit" value="Update" />
</div>
</form>
{% else %}
<p>You are not assigned to any projects.</p>
{% endif %}
</div>
</div>
I have the csrf middleware enabled in my settings.py
The behaviour I would expect from all this would be:
Unbound form - display the page with pre-populated data
Bound invalid - display the page with selected data
Bound valid - display the page with updated data
The unbound data page displays as expected but as soon as the post request is created by clicking the Update button on the form the a blank page is displayed. I tried throwing an exception after the if self.request.method == "POST" statement but the code doesn't seem to get this far. I'm really not sure what's going on.

Answer 1

There is a syntax error in your views.py file.
if self.request.method == "POST":
form = ProjectAssignmentForm(projs, self.request.POST)
should be
if self.request.method == "POST":
form = ProjectAssignmentForm(projs, self.request.POST)
Do you have debugging turned off? That would explain why you're not getting any output. Because there is a fatal error django would print an error report, but if debugging is off it will email the error report to the admin listed in settings.py instead.
Check that in settings.py:
DEBUG = True