admin: Fix selection of default catalog view

Return the highest-order view type in the `ADMIN_VIEWS_ORDER` setting.

snf-admin-app/synnefo_admin/admin/utils.py

@@ -52,6 +52,12 @@ model_dict = {
 }
 
 
+def default_view():
+    """Return the first registered view based on ADMIN_VIEWS_ORDER."""
+    if admin_settings.ADMIN_VIEWS_ORDER:
+        return admin_settings.ADMIN_VIEWS_ORDER[0]
+
+
 def __reverse_model_dict():
     """Create the a model dict with the class names as keys."""
     reversed_model_dict = {}

snf-admin-app/synnefo_admin/admin/views.py

@@ -42,7 +42,8 @@ from synnefo_admin import admin_settings
 
 from synnefo_admin.admin import exceptions
 from synnefo_admin.admin.utils import (conditionally_gzip_page,
-                                       customize_details_context, admin_log)
+                                       customize_details_context, admin_log,
+                                       default_view)
 
 from synnefo.ui.views import UI_MEDIA_URL
 
@@ -68,6 +69,9 @@ def get_view_module(view_type):
 
 def get_view_module_or_404(view_type):
     """Try to import a view module or raise 404."""
+    if not view_type:
+        raise AdminHttp404("No category provided.")
+
     mod = get_view_module(view_type)
     if not mod:
         raise AdminHttp404("No category found with this name: %s" % view_type)
@@ -268,7 +272,7 @@ def details(request, type, id):
 
 
 @admin_user_required
-def catalog(request, type='user'):
+def catalog(request, type=default_view()):
     """Admin-Interface generic list view."""
     admin_log(request, type=type)