Converted document grouping subtemplate into a document information tab

apps/grouping/views.py

@@ -1,12 +1,17 @@
 from django.utils.translation import ugettext_lazy as _
 from django.contrib import messages
 from django.http import HttpResponseRedirect
-from django.shortcuts import get_object_or_404
+from django.shortcuts import get_object_or_404, render_to_response
+from django.core.urlresolvers import reverse
+from django.template import RequestContext
 
 from documents.models import Document
 from documents.views import document_list
 
 from grouping.models import DocumentGroup
+from grouping.conf.settings import SHOW_EMPTY_GROUPS
+from grouping.forms import DocumentDataGroupForm
+from grouping import document_group_link
 
 
 def document_group_action(request):
@@ -34,3 +39,45 @@ def document_group_view(request, document_id, document_group_id):
             'object': document
         }
     )
+
+
+def groups_for_document(request, document_id):
+    subtemplates_list = []
+    document = get_object_or_404(Document, pk=document_id)
+    document_groups, errors = DocumentGroup.objects.get_groups_for(document)
+    if (request.user.is_staff or request.user.is_superuser) and errors:
+        for error in errors:
+            messages.warning(request, _(u'Document group query error: %s' % error))
+
+    if not SHOW_EMPTY_GROUPS:
+        #If GROUP_SHOW_EMPTY is False, remove empty groups from
+        #dictionary
+        document_groups = dict([(group, data) for group, data in document_groups.items() if data['documents']])
+
+    if document_groups:
+        subtemplates_list = [{
+            'name': 'generic_form_subtemplate.html',
+            'context': {
+                'title': _(u'document groups (%s)') % len(document_groups.keys()),
+                'form': DocumentDataGroupForm(
+                    groups=document_groups, current_document=document,
+                    links=[document_group_link]
+                ),
+                'form_action': reverse('document_group_action'),
+                'submit_method': 'GET',
+            }
+        }]
+    else:
+        # If there are not group display a placeholder messages saying so
+        subtemplates_list = [{
+            'name': 'generic_subtemplate.html',
+            'context': {
+                'content': _(u'There no defined groups for the current document.'),
+            }
+        }]
+
+    return render_to_response('generic_detail.html', {
+        'object': document,
+        'document': document,
+        'subtemplates_list': subtemplates_list,
+    }, context_instance=RequestContext(request))