Adapt article_data return value to ModelTree standards

kfet/views.py

@@ -1349,11 +1349,14 @@ def kpsul_articles_data(request):
 
     for article in articles:
         articlelist.append({
-            'id': article.id,
-            'name': article.name,
-            'price': article.price,
-            'stock': article.stock,
-            'category': {
+            'type': 'article',
+            'content': {
+                'id': article.id,
+                'name': article.name,
+                'price': article.price,
+                'stock': article.stock,
+            },
+            'parent': {
                 'id': article.category.id,
                 'name': article.category.name,
             }