Stefan Nitsche wrote:
>
>
> On Thu, Jan 28, 2010 at 10:15, andreas schmid <a.schmi...@gmail.com
> <mailto:a.schmi...@gmail.com>> wrote:
>
> and your form works on edit too?
> i really cant understand why mine isnt...
>
> its giving me this MultiValueDictKeyError which i dont understand.
>
> Stefan Nitsche wrote:
> > On Wed, Jan 27, 2010 at 14:04, andreas schmid
> <a.schmi...@gmail.com <mailto:a.schmi...@gmail.com>
> > <mailto:a.schmi...@gmail.com <mailto:a.schmi...@gmail.com>>> wrote:
> >
> > 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>
> > <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>>
> > > <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>
> <mailto: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>
> <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>>
> > <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>
> <mailto: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>
> <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>>
> > <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>
> <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>>>
> > > --
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> >
> >
> > I can understand your confusion since in my first post I was
> trying to
> > create an add form and in my second email I changed it to be an edit
> > form (since I figured it would be easier to get going).
> >
> > I've actually solved my problem now. First: thanks to you I got
> on the
> > right track. Second: I'm stupid.
> >
> > After I had changed the save function to mimic yours and it still
> > didn't work I started to print every variable I could find.
> After some
> > trials and more prints I discovered that request.FILES was empty.
> > Adding enctype="multipart/form-data" to the form in the template
> > solved that embarrassingly stupid error.
> >
> > I am now able to add and edit items from the frontend. Here is
> how my
> > view-function and my template looks like (for now):
> >
> > views.py
> > ======
> > def edit(request, category=None, slug=None):
> > ImageFormSet = inlineformset_factory(Recipe, Image)
> > if slug is not None:
> > recipe =
> Recipe.objects.filter(published=True).get(slug=slug)
> > form = RecipeForm(instance=recipe) # A bound form
> > formset = ImageFormSet(instance=recipe)
> > else:
> > form = RecipeForm() # An unbound form
> > formset = ImageFormSet(instance=None)
> > if request.method == 'POST': # If the form has been submitted...
> > if slug is not None:
> > form = RecipeForm(request.POST, instance=recipe) # A
> form
> > bound to the POST data
> > formset = ImageFormSet(request.POST, request.FILES,
> > instance=recipe) # An inline formset bound to the POST and FILES
> data
> > else:
> > form = RecipeForm(request.POST, instance=None) # A form
> > bound to the POST data
> > formset = ImageFormSet(request.POST, request.FILES,
> > instance=None) # An inline formset bound to the POST and FILES data
> > if form.is_valid() and formset.is_valid(): # All validation
> > rules pass
> > new_recipe = form.save(commit=False)
> > new_recipe = form.save()
> > if slug is None:
> > formset = ImageFormSet(request.POST, request.FILES,
> > instance=new_recipe) # An inline formset bound to the POST and
> FILES data
> > formset_models = formset.save(commit=False)
> > for f in formset_models:
> > f.recipe = new_recipe
> > f.save()
> > #return HttpResponseRedirect(reverse('recipes-index',)) #
> > Redirect after POST
> > return
> HttpResponseRedirect(new_recipe.get_absolute_url())
> > return render_to_response('recipes/edit.html',
> > {'form': form, 'formset': formset,
> > 'slug':slug, 'category':category,},
> >
> context_instance=RequestContext(request))
> >
> > edit.html
> > ======
> > <form action="{% if slug %}{% url recipes-edit category slug
> %}{% else
> > %}{% url recipes-add %}{% endif %}" method="POST"
> > enctype="multipart/form-data">
> > {{ form.as_p }}
> >
> > <h2>Ladda upp bild(er)</h2>
> > <table>
> > {{ formset }}
> > </table>
> > <input type="submit" value="Submit" />
> > </form>
> >
> > --
> > Stefan Nitsche
> > ste...@nitsche.se <mailto:ste...@nitsche.se>
> <mailto:ste...@nitsche.se <mailto:ste...@nitsche.se>>
> > --
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>
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>
>
> Yes my form works for both editing and adding new items (yay!).
>
> How does your template look like? I found this that seems like it
> could be related: http://www.pubbs.net/django/200908/18448/ and it
> talks about looping over hidden form elements.
>
my template looks like this:
{% for f in formset.management_form %}
{{ f }}
{% endfor %}
{% for form in formset.forms %}
<tr id="{{ form.prefix }}-row" class="setfield">
<td class="type {% if form.type.errors
%}error{%endif%}">{{ form.type }}</td>
<td class="name {% if form.name.errors
%}error{%endif%}">{{ form.name }}</td>
<td class="budget {% if form.budget.errors
%}error{%endif%}">{{ form.budget }}</td>
</tr>
{% endfor %}
basically because i have to delete and add forms in the formset trough
js with http://www.djangosnippets.org/snippets/1389/ but i will check
about the hidden fields today.
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