How to properly set the initial value for a Form ChoiceField

[Eugene Goldberg]

Hello,
In my Form I have a couple of ChoiceField fields, for which I need to set a default / initial value.
I'm trying to do this in the __init__, and my debug shows, that these values do take, but, when the actual html forms shows up, my default values are not set as desired.
Am I missing something?

The complete code is below. The two fields are 'images' and 'flavors'

class UpdateWorkload(forms.SelfHandlingForm):
    name = forms.CharField(max_length="255", label=_("Workload Name"))
    description = forms.CharField(widget=forms.Textarea,
                                  label=_("Description"), required=False)
    image_choices = []
    images = forms.ChoiceField(label=_("Images"), choices=image_choices, initial="")
    flavor_choices = []
    flavors = forms.ChoiceField(label=_("Flavors"), choices=flavor_choices, initial="")

    def __init__(self, request, image_choices=image_choices, flavor_choices=flavor_choices,
                 *args, **kwargs):
        super(UpdateWorkload, self).__init__(request, *args, **kwargs)

        images, self._more, self._prev = api.glance.image_list_detailed(
            self.request)
        flavors = api.nova.flavor_list(request, True)

        for image in images:
                image_choices.append((image.id, image.name))
        if len(image_choices) > 1:
            image_choices.insert(0, ('', _("Select an Image")))
        self.fields['images'].choices = image_choices

        for flavor in flavors:
                flavor_choices.append((flavor.id, flavor.name))
        if len(flavor_choices) > 1:
            flavor_choices.insert(0, ('', _("Select an Flavor")))
        self.fields['flavors'].choices = flavor_choices
        selected_workload = kwargs['initial']
        selected_image = selected_workload['image']
        selected_flavor = selected_workload['flavor']

        print "initial: " + self.fields['images'].initial

        self.fields['images'].initial = str(selected_image)
        self.fields['images'].initial = str(selected_flavor)

        print "initial after assignment: " + self.fields['images'].initial

    def handle(self, request, data):
         try:
            message = _('Updated Workload')
            messages.info(request, message)
            # This is where we actually update our Workload
            workload_url = "http://localhost:8000/workloads/"
            workload_name = request.POST.get("name")
            workload_description = request.POST.get("description")
            flavor_id = request.POST.get("flavors")
            image_id = request.POST.get("images")
            post_data = {"name": workload_name, "description": workload_description,
                         "image": image_id, "flavor": flavor_id}
            post_data = json.dumps(post_data)
            # req = urllib2.Request(workload_url)
            # req.add_header('Content-Type', 'application/json')
            req = urllib2.Request(url=workload_url, data=post_data)
            req.get_method = lambda: 'PUT'
            resp = urllib2.urlopen(req, post_data)

            return True
         except Exception:
            redirect = reverse("horizon:mydashboard:workloads_panel:index")
            exceptions.handle(request,
                              _('Unable to create Workload.'),
                              redirect=redirect)

[Vijay Khemlani]

It could be a number of things, but the main thing that caught my attention was this part

        self.fields['images'].initial = str(selected_image)

        self.fields['images'].initial = str(selected_flavor)

shouldn't it be

        self.fields['images'].initial = str(selected_image)

        self.fields['flavors'].initial = str(selected_flavor)

?

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