Please help me with CBV template_name behaviour.

Dear django-users,

In an effort ot learn Django, i am writing a blog post, "Simple Django Tutorial", to remind myself & possibly others of some Django Basics.

I ALMOST finished when i noticed some strange (to me) behaviour of the `template_name` in a CBV.

Here are the relevant CBVs:

class SimpleSearchListContactView(ListView):

    model = Contact
    template_name = 'contacts/contact_list.html'    
    def get_queryset(self):
        qs = super(SimpleSearchListContactView, self).get_queryset()
       
        return qs.filter(first_name__contains=self.kwargs['fname'])
        # "first_name" is the first_name field in our Contacts model
        # "contains" is one of Django's "Field lookups"
        # "'fname'" is passed in from our url <fname> Regex Named Group  
   
   
class ParametricSearchListContactView(ListView):
    model = Contact
    template_name = 'contacts/contact_list.html'

    def get_queryset(self):
        qs = super(ParametricSearchListContactView, self).get_queryset()
        field_lookups_dict = {
            '%s__%s'%(self.kwargs['field_name'], self.kwargs['match_cmd']):self.kwargs['value'],
            # for a def of each match_cmd see Field lookups - https://docs.djangoproject.com/en/1.9/ref/models/querysets/#field-lookups
        }
        print ("ParametricSearchListContactView")
        print (ParametricSearchCRUDListContactView.template_name)
        print (ParametricSearchListContactView.template_name)
        print (ListView.template_name)
        return qs.filter(**field_lookups_dict)
   
   
class SimpleSearchCRUDListContactView(ListView):

    model = Contact
    template_name = 'contacts/crudlist.htm'    
   
    def get_queryset(self):
        qs = super(SimpleSearchCRUDListContactView, self).get_queryset()
       
        return qs.filter(first_name__contains=self.kwargs['fname'])
        # "first_name" is the first_name field in our Contacts model
        # "contains" is one of Django's "Field lookups"
        # "'fname'" is passed in from our url <fname> Regex Named Group  
   
   
class ParametricSearchCRUDListContactView(ListView):
    model = Contact
    template_name = 'contacts/crudlist.htm'
   

    def get_queryset(self):
        qs = super(ParametricSearchCRUDListContactView, self).get_queryset()
        field_lookups_dict = {
            '%s__%s'%(self.kwargs['field_name'], self.kwargs['match_cmd']):self.kwargs['value'],
            # for a def of each match_cmd see Field lookups - https://docs.djangoproject.com/en/1.9/ref/models/querysets/#field-lookups
        }
        print ("ParametricSearchCRUDListContactView")
        print (ParametricSearchCRUDListContactView.template_name)
        print (ParametricSearchListContactView.template_name)
        print (ListView.template_name)

        return qs.filter(**field_lookups_dict)
   

   

The 2nd pair of classes are the same as the first pair EXCEPT:
 
    template_name = 'contacts/crudlist.html' NOT 'contacts/contact_list.html'
    Class names are new in 2 places in each class:
        "SimpleSearchCRUDListContactView"
        "ParametricSearchCRUDListContactView"


Here are the relevant URLs:

    url(r'^ssearch/(?P<fname>[\w-]+)/$', contacts.views.SimpleSearchListContactView.as_view(), name='simplesearchlistcontactview', ),
    url(r'^psearch/(?P<field_name>[\w-]+)/(?P<match_cmd>[\w-]+)/(?P<value>[\w-]+)/$', contacts.views.ParametricSearchListContactView.as_view(), name='parametricsearchlistcontactview', ),
   
    url(r'^ssearchc/(?P<fname>[\w-]+)/$', contacts.views.SimpleSearchCRUDListContactView.as_view(), name='ssearchc', ),
    url(r'^psearchc/(?P<field_name>[\w-]+)/(?P<match_cmd>[\w-]+)/(?P<value>[\w-]+)/$', contacts.views.ParametricSearchCRUDListContactView.as_view(), name='psearchc', ),

I EXPECT the Views with CRUD in their names (CRUD Views) to behave THE SAME AS the others EXCEPT items are listed with read, update & delete links, because that is how `contacts/crudlist.htm` displays them.

THE PROBLEM IS that the CRUD Views display the items using the Plain Template (contacts/contact_list.html) NOT the CRUD Template ('contacts/crudlist.htm')

I.E. Navigating to `http://127.0.0.1:8000/contacts/psearchc/last_name/contains/d/`
YIELDS

Plain Contacts

• Joe Codeswell j@j.com
• Jayne Mansfield j@thebomb.com

NOT AS EXPECTED

CRUD Contacts

Create

• Joe Codeswell j@j.com Read | Update | Delete
• Jayne Mansfield j@thebomb.com Read | Update | Delete

Also, for the same navigation URL, in the Server Status Window the prints yield

[18/Jun/2016 11:16:26] "GET /contacts/psearchc/last_name/contains/d/ HTTP/1.1" 200 218
ParametricSearchCRUDListContactView
contacts/crudlist.htm
contacts/contact_list.html
None

I hope someone can tell me what's going on here.

Thanks in advance.

Love and peace,

Joe

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