It looks like i'm passing the right objects but get told there isn't a
comments field
Exception Type:AttributeErrorException Value:
'PollForm' object has no attribute 'comments'
The debug info says:
poll.comments.append(self) ...
▼ Local vars
Variable Value
self
<blogtut.forms.CommentForm object at 0x57cec50>
user
<django.utils.functional.SimpleLazyObject object at 0x57c32d0>
poll
<blogtut.forms.PostForm object at 0x57ce5d0>
On Sunday, 10 November 2013 23:05:49 UTC-10, Jason S wrote:
>
> Hi,
> The first form saves fine but the second still dosn't.
> I can't seem to pass the poll object to the save method of the form
> properly.
>
> Since i'm using nonrel once i've passed the poll object I can append the
> comment using something like poll.comments.append(comment) but I just don't
> seem to be able to get it going.
>
> I've re-written the form quite a few times without any luck and have
> looked at a few similar examples but can't quite piece it together. Any
> chance you could show me how its done?
>
> On Thursday, 7 November 2013 23:02:48 UTC-10, Jason S wrote:
>>
>> Hi Paul,
>> After a bit more playing around I got it going, there was another
>> unrelated issue with my code.
>> Learnt to use the debugging info more effectively in the process which is
>> great.
>>
>> Thanks again for your help, very much appreciated.
>> Kind regards,
>> Jason
>>
>> On Thursday, 7 November 2013 04:56:14 UTC-10, [email protected] wrote:
>>>
>>> Hey Jason--
>>>
>>> You defined the save method as needing the user parameter, but you don't
>>> pass that in. Try that (assuming user should equal request.user). Good
>>> luck!
>>>
>>> -Paul
>>>
>>> On Thursday, November 7, 2013 5:25:18 AM UTC-5, Jason S wrote:
>>>>
>>>> Hi,
>>>> Disclaimer - I'm new to django and python, so please bear with me.
>>>>
>>>> Note: My django instance uses a nosql database.
>>>>
>>>> I'm trying to create a formset which has multiple forms based on models.
>>>> The formset will have one form "post", then 1-3 "comment" forms.
>>>> Eventually i'd like to be able to add/remove the comment fields but i'll
>>>> work that out later once the form saves with manually set number of
>>>> comment
>>>> fields.
>>>> For now the formset just has the two forms "post" and "comment" to make
>>>> it easy, but if i can save one it should work for more.
>>>> The form displays as expected but I get "save() takes at least 2
>>>> arguments (1 given)".
>>>>
>>>> I think thats because i'm supplying the "post" data, but not the object
>>>> itself? I've tried referencing it but without success.
>>>> I may need to set the form up as a class with methods and then use
>>>> something like the following which is how another tut does it, but my
>>>> first
>>>> attempt to do it this way failed.
>>>> 21 def post(self, request, *args, **kwargs):
>>>> 22 self.object = self.get_object()
>>>> 23 form = CommentForm(object=self.object, data=request.POST)
>>>> 24
>>>> 25 if form.is_valid():
>>>> 26 form.save()
>>>> 27 return
>>>> HttpResponseRedirect(self.object.get_absolute_url())
>>>>
>>>>
>>>> *Models:*
>>>> 7 class Object_Post(models.Model):
>>>> 8 # Defines the post model
>>>> 9 def __unicode__(self):
>>>> 10 return self.name
>>>> 11
>>>> 12 name = models.CharField(max_length=70)
>>>> 13 desc = models.TextField()
>>>> 14 Comments = ListField(EmbeddedModelField('Comment),
>>>> editable=False)
>>>> 15
>>>> 16
>>>> 17 class Comment(models.Model):
>>>> 18 # Comments.
>>>> 19 def __unicode__(self):
>>>> 20 return self.name
>>>> 21
>>>> 22 name = models.CharField(max_length=70)
>>>> 23 desc = models.TextField()
>>>>
>>>> *Forms:*
>>>> 39 class PostForm(forms.ModelForm):
>>>> 40 class Meta:
>>>> 41 model = Object_Post
>>>> 42
>>>> 43 def save(self, user, commit = True):
>>>> 44 Object_Post = super(PostForm, self).save(commit = False)
>>>> 45 Object_Post.user = user
>>>> 46
>>>> 47 if commit:
>>>> 48 Object_Post.save()
>>>> 49
>>>> 50 return Object_Post
>>>> 51
>>>> 52 class CommentForm(forms.ModelForm):
>>>> 53 class Meta:
>>>> 54 model = Comment
>>>> 55
>>>> 56 def save(self, user, commit = True):
>>>> 57 Comment = super(CommentForm, self).save(commit = False)
>>>> 58 Comment.user = user
>>>> 59
>>>> 60 if commit:
>>>> 61 Comment.save()
>>>> 62
>>>> 63 return Comment
>>>>
>>>> *View:*
>>>> 65 def create_post(request):
>>>> 66 ....
>>>> 67 #
>>>> 68 # Manually set number of comment fields for now
>>>> 69 commentfields = 1
>>>> 70
>>>> 71 if request.method == "POST":
>>>> 72 pform = PostForm(request.POST, instance=Object_Post())
>>>> 73 #
>>>> 74 cforms = [CommentForm(request.POST, prefix=str(x),
>>>> instance=Comment()) for x in range(0,Commentfields)]
>>>> 75 if pform.is_valid() and all([cf.is_valid() for cf in
>>>> cforms]):
>>>> 76 #
>>>> 77 new_post = pform.save()
>>>> 78 for cf in cforms:
>>>> 79 new_Comment = cf.save(commit=False)
>>>> 80 new_Comment.Object_Post = new_post
>>>> 81 new_Comment.save()
>>>> 82 return
>>>> HttpResponseRedirect(reverse('blogtut.views.dashboard'))
>>>> 83 else:
>>>> 84 pform = PostForm(instance=Object_Post())
>>>> 85 cforms = [CommentForm(prefix=str(x), instance=Comment())
>>>> for x in range(0,Commentfields)]
>>>> 86 return render_to_response('create_object.html',
>>>> {'Post_Form': pform, 'Comment_Form': cforms},
>>>> 87 context_instance=RequestContext(request)
>>>> 88 )
>>>>
>>>> *Template:*
>>>> 1 {% extends "base.html" %}
>>>> 2
>>>> 3 {% block content %}
>>>> 4 <dl>
>>>> 5
>>>> # Irrelevent to the form.
>>>> 11
>>>> 12 </dl>
>>>> 13
>>>> 14 <form action="{% url blogtut.views.create_post %}" method="post"
>>>> accept-ch>
>>>> 15 {% csrf_token %}
>>>> 16 {{ form.as_p }}
>>>> 17
>>>> 18 Enter a name and description for the post: </br>
>>>> 19 {{ Post_Form }} </br>
>>>> 20 Enter one or more Comments:</br>
>>>> 21 {% for mform in Comment_Form %}
>>>> 22 Comment: {{ cform }}</br>
>>>> 23 {% endfor %}
>>>> 24 ....
>>>> 25 <p><input type="submit" value="Create Now"/></p>
>>>> 26 </form>
>>>> 27
>>>> 28 {% endblock %}
>>>> ~
>>>>
>>>> I'd really appreciate any help here as i've been hitting my head
>>>> against this for a week or so now, would particularly appreciate examples
>>>> as my python/django skills are novice and it'll help me understand.
>>>>
>>>> Thanks for your time/help!
>>>> Jason
>>>>
>>>
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