is this an add or an edit form? or both?
i have a similar inlineformset and i need to loop over the inline
objects to set the foreignkey to the parent object like:
if form.is_valid() and formset.is_valid(): # All validation rules pass
new_idea = form.save(commit=False)
new_idea.author = request.user
new_idea = form.save()
formset_models = formset.save(commit=False)
for f in formset_models:
f.idea = new_idea
f.save()
return HttpResponseRedirect(new_idea.get_absolute_url())
im actually experiencing problems with the edit form where i can get the
values displayed in the form if i want to edit but i get a
Exception Type: MultiValueDictKeyError
Exception Value:
Key 'activity_set-0-id' not found in <QueryDict: {u'activity_set-0-name':
[u'a\xf6lskjdf\xf6sa'], u'activity_set-0-type': [u'research']
on save... any hints?
Stefan Nitsche wrote:
> On Mon, Jan 4, 2010 at 23:27, Stefan Nitsche <ste...@nitsche.se
> <mailto:ste...@nitsche.se>> wrote:
>
> Hi,
>
> to begin with I would like to declare that I'm still on the
> beginner end of the scale when it comes to Python and Django.
>
> I have an app which has two models:
>
> class Item(models.Model):
> title = models.CharField()
> description_markdown = models.TextField()
>
> class ItemImage(models.Model):
> item = models.ForeignKey(Item)
> image = models.ImageField(upload_to='tmp')
>
> What I want to do now is to create a page where users can submit
> an item and upload an image (or images) at the same time. I can
> create a form using ModelForm for the Item-model and I can create
> a form for the ItemImage-model using inlineformset_factory, if I
> do this the submit page looks like it should. However it doesn't
> behave the way I want it to when saving, but to be honest I have
> no real idea of what I'm doing when it comes to the related
> model/form.
>
> If I understand it correctly when using inlineformset_factory I
> must give it an instance so that it can map the foreignkey,
> correct? So how do one go about and create a form where people can
> add "item" and "itemimages" at the same time? I'm feeling totaly
> lost any pointers would be greatly appreciated.
>
> --
> Stefan Nitsche
> ste...@nitsche.se <mailto:ste...@nitsche.se>
>
>
>
> Ok I'm totally lost here. I've created an edit function which works
> splendidly except for the inline-part, it displays alright but it
> isn't saved at all.
>
> My models look like this:
> ==================
>
> class Recipe(models.Model):
> author = models.ForeignKey(User)
> name = models.CharField(max_length=255, verbose_name='Namn på rätten')
> category = models.ForeignKey('Category', verbose_name='Kategori')
> create_date = models.DateTimeField(auto_now_add=True)
> servings = models.CharField(max_length=10, verbose_name='Portioner')
> cooking_time = models.CharField(max_length=10,
> verbose_name='Tillagningstid')
> ingredients = models.TextField(verbose_name='Ingridienser')
> instructions = models.TextField(verbose_name='Instruktioner')
> oven_heat = models.CharField(max_length=10, null=True, blank=True,
> verbose_name='Ugnsvärme')
> serving_tips = models.TextField(null=True, blank=True,
> verbose_name='Serveringsförslag')
> tags = TagField(verbose_name='Taggar')
> slug = models.SlugField()
> published = models.NullBooleanField(default=1)
>
> class Image(models.Model):
> recipe = models.ForeignKey(Recipe)
> file = models.ImageField(upload_to=get_file_path)
>
> My view looks like this:
> =================
> from django.shortcuts import render_to_response, get_object_or_404
> from django.template import RequestContext
> from django.http import HttpResponseRedirect
> from nitsche.recipes.models import Category, Recipe, Image
> from nitsche.recipes.forms import RecipeForm
> from django.contrib.auth.decorators import login_required
> from django.forms.models import inlineformset_factory
>
> @login_required
> def edit(request, slug):
> ImageFormSet = inlineformset_factory(Recipe, Image)
> recipe = Recipe.objects.filter(published=True).get(slug=slug)
> form = RecipeForm(instance=recipe)
> formset = ImageFormSet(instance=recipe)
> if request.method == 'POST':
> form = RecipeForm(request.POST, instance=recipe)
> formset = ImageFormSet(request.POST, request.FILES,
> instance=recipe)
> if form.is_valid(): # All validation rules pass
> form.save()
> if formset.is_valid():
> formset.save()
> return HttpResponseRedirect('/recept')
> return render_to_response('recipes/add.html',
> {'form': form, 'formset': formset,
> 'slug':slug,},
> context_instance=RequestContext(request))
>
> And finaly my template looks like this:
> ============================
>
> <form action="/recept/edit/{{ slug }}/" method="POST">
> {{ form.as_p }}
> <table>
> {{ formset }}
> </table>
> <input type="submit" value="Submit" />
> </form>
>
> Every change I make in the main form (for the recipe-model) is saved
> but nothing from the inline_formset (the image-model). I get no error
> or anything, it behaves as if it is saving all the data but in the
> reality nothing in the inline_formset is saved. I've read the
> documentation and as far as I understand it should work this way. When
> I add or edit an item in the backend it works as it should. Can
> somebody point out what I'm doing wrong? At this point I am starting
> to feel a little desperate and any nudge in the right direction would
> be greatly appreciated.
>
> --
> Stefan Nitsche
> ste...@nitsche.se <mailto:ste...@nitsche.se>
> --
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