Add action to get number of datasets in a showcase

Necessary because the action ckanext_showcase_package_list now returns a paginated result

ckanext/showcase/logic/action/__init__.py

@@ -22,6 +22,8 @@ def get_actions():
             ckanext.showcase.logic.action.delete.showcase_package_association_delete,
         'ckanext_showcase_package_list':
             ckanext.showcase.logic.action.get.showcase_package_list,
+        'ckanext_showcase_package_list_count':
+            ckanext.showcase.logic.action.get.showcase_package_list_count,
         'ckanext_package_showcase_list':
             ckanext.showcase.logic.action.get.package_showcase_list,
         'ckanext_showcase_admin_add':

ckanext/showcase/logic/action/get.py

@@ -44,6 +44,33 @@ def showcase_list(context, data_dict):
     return showcase_list
 
 
+@toolkit.side_effect_free
+def showcase_package_list_count(context, data_dict):
+    '''Get number of packages associated with a showcase.
+
+    :param showcase_id: id or name of the showcase
+    :type showcase_id: string
+
+    :rtype: int
+    '''
+
+    toolkit.check_access('ckanext_showcase_package_list', context, data_dict)
+
+    # validate the incoming data_dict
+    validated_data_dict, errors = validate(data_dict,
+                                           showcase_package_list_schema(),
+                                           context)
+
+    if errors:
+        raise toolkit.ValidationError(errors)
+
+    # get a list of package ids associated with showcase id
+    pkg_id_list = ShowcasePackageAssociation.get_package_ids_for_showcase(
+        validated_data_dict['showcase_id'])
+
+    return len(pkg_id_list)
+
+
 @toolkit.side_effect_free
 def showcase_package_list(context, data_dict):
     '''Get paginated list of packages associated with a showcase.

ckanext/showcase/plugin/__init__.py

@@ -162,9 +162,8 @@ def _add_to_pkg_dict(self, context, pkg_dict):
                                  qualified=True)
 
         # Add dataset count
-        pkg_dict[u'num_datasets'] = len(
-            tk.get_action('ckanext_showcase_package_list')(
-                context, {'showcase_id': pkg_dict['id']}))
+        pkg_dict[u'num_datasets'] = tk.get_action('ckanext_showcase_package_list_count')(
+                context, {'showcase_id': pkg_dict['id']})
 
         # Rendered notes
         if showcase_helpers.get_wysiwyg_editor() == 'ckeditor':