formsets and back django

project/docs/views/base_views.py

@@ -575,13 +575,13 @@ class BaseItemsViews(BaseViews):
         assert self.ITEM_MODEL is not None, (u"%s.ITEM_MODEL can't be None!" % self.__class__.__name__)
         assert self.ITEM_FORM_CLASS is not None, (u"%s.ITEM_FORM_CLASS can't be None!" % self.__class__.__name__)
 
-    def set_item_formset_class(self):
+    def set_item_formset_class(self, extra_count=2):
         """Класс FormSet-а для табличной части документа."""
         self.ITEM_FORMSET_CLASS = inlineformset_factory(
             parent_model = self.MODEL,
             model = self.ITEM_MODEL,
             form = self.ITEM_FORM_CLASS,
-            extra=2,
+            extra=extra_count,
             can_delete=True,
         )
 
@@ -684,6 +684,8 @@ class BaseItemsViews(BaseViews):
                 d.pop('created_at', None)
                 d.pop('updated_at', None)
                 kwargs['initial_items'].append(d)
+                
+                self.set_item_formset_class(extra_count=len(kwargs['initial_items']))
 
         return self.add(self.request, *args, **kwargs)
 

project/docs/views/mixins.py

@@ -35,5 +35,6 @@ class AddByInvoiceMethodMixin(object):
                         fields=getattr(InvoiceItemForm.Meta, 'fields', None),
                         exclude=getattr(InvoiceItemForm.Meta, 'exclude', None)
                     ))
+        self.set_item_formset_class(extra_count=len(kwargs['initial_items']))
 
         return self.add(self.request, *args, **kwargs)

requirements.txt

@@ -1,4 +1,4 @@
-Django==1.6.5
+Django==1.5.8
 Pillow==2.2.1
 South==1.0
 amqp==1.4.5