Django UpdateView with ImageField attribute
I am having problems creating UpdateView Class.I managed to do createView and UpdateView without adding any form before adding imageField. But now I have an imageField that is creating the problem. Luckily I can do createView and it works fine.
Below is my code for CreateView
class CreatePostView(FormView):
form_class = PostForm
template_name = 'edit_post.html'
def get_success_url(self):
return reverse('post-list')
def form_valid(self, form):
form.save(commit=True)
# messages.success(self.request, 'File uploaded!')
return super(CreatePostView, self).form_valid(form)
def get_context_data(self, **kwargs):
context = super(CreatePostView, self).get_context_data(**kwargs)
context['action'] = reverse('post-new')
return context
However, I tried to do UpdateView (ViewForm). Below is my code:
class UpdatePostView(SingleObjectMixin,FormView):
model = Post
form_class = PostForm
tempate_name = 'edit_post.html'
# fields = ['title', 'description','content','published','upvote','downvote','image','thumbImage']
def get_success_url(self):
return reverse('post-list')
def form_valid(self, form):
form.save(commit=True)
# messages.success(self.request, 'File uploaded!')
return super(UpdatePostView, self).form_valid(form)
def get_context_data(self, **kwargs):
context = super(UpdatePostView, self).get_context_data(**kwargs)
context['action'] = reverse('post-edit',
kwargs={'pk': self.get_object().id})
return context
When I try to run updateView it gives me the following error:
AttributeError in / posts / edit / 23 /
UpdatePostView has no attribute 'get_object'
Request Method: GET Request URL: http: // localhost: 8000 / posts / edit / 23 / Django version: 1.8.2 Exception Type: AttributeError Value:
UpdatePostView has no attribute 'get_object'
Exception Location: /home/PostFunctions/mysite/post/views.py in get_context_data line 72 Python Executable: / usr / bin / python Python Version: 2.7.6
Below is my url.py:
#ex : /posts/edit/3/
url(r'^edit/(?P<pk>\d+)/$', post.views.UpdatePostView.as_view(),
name='post-edit',),
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I have a form to update a model using ImageField. I am actually extending ModelForm for my model (PostForm for me).
But my CustomUpdateView extends UpdateView, from a generic django view.
from django.views.generic.edit import UpdateView
from django.shortcuts import get_object_or_404
class CustomUpdateView(UpdateView):
template_name = 'some_template.html'
form_class = CustomModelForm
success_url = '/some/url'
def get_object(self): #and you have to override a get_object method
return get_object_or_404(YourModel, id=self.request.GET.get('pk'))
You just need to define a get_object method and the update will update the object with the value in the form, but it needs to get the object you want to update.
get_object_or_404()
works like a function get()
on the model, so replace id with your field_id name.
Hope it helps
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