Multiple context

Sometimes, you want to add to your views few other datas. In Django, that mean addded some contexts variable throught template tags.

But what if you had to this to a lot's of widget spread over lot's of views. Even if template tags are great, there are not always accurate and easy to write. There is better to do the job.

The basic django approch is to design a view for a main purpose:

• to see an object - DetailView
• a list of object - ListView
• etc

Multiple Context allow to have views focused over multiple subjects.

You know why, let's see how:

Installation

After downloading the package with Git, just apply:

python setup.py install

Usage

Multiple context only apply to class-based view as it work with a Mixin.

Let's say you have a base view:

class MyView(View):

    def get(self,request,text):
        my_object = MyObject.objects.all()
        return render_to_response("myTemplate.html",RequestContext(request,{"my_object":my_object,"text":text}))

And you want add to the left pane a widget with the 5 last blog post.

You just have to:

1. Extend the MultipleContextMixin:

   class MyView(View, MultipleContextMixin): ...
   

2. Provide a ContextProvider and add it to the extra_context argument:

   class FiveLastBlogPost(ContextProvider):
   
       def get_context(self,request,*args,**kwargs):
           posts = BlogPosts.objects.all()[5]
           return {'posts':posts}
   
   class MyView(View, MultipleContextMixin):
       extra_context = (FiveLastBlogPost,)
   

3. Add an ExtraContext in your render_to_response:

   def get(self,request,text):
       my_object = MyObject.objects.all()
       return render_to_response("myTemplate.html",
                                  ExtraContext(request,
                                               self,
                                               {"my_object":my_object,"text":text},
                                               text=text
                                               ))
   

4. That's it

The main limitation of this extension is that it's not applicable into generic view.