Allow making model changing in on_model_change before persisiting when using peewee

flask_admin/contrib/peeweemodel/view.py

@@ -277,13 +277,12 @@ class ModelView(BaseModelView):
         try:
             model = self.model()
             form.populate_obj(model)
+            self.on_model_change(form, model)
             model.save()
 
             # For peewee have to save inline forms after model was saved
             save_inline(form, model)
 
-            self.on_model_change(form, model)
-
             return True
         except Exception, ex:
             flash(gettext('Failed to create model. %(error)s', error=str(ex)), 'error')
@@ -292,13 +291,12 @@ class ModelView(BaseModelView):
     def update_model(self, form, model):
         try:
             form.populate_obj(model)
+            self.on_model_change(form, model)
             model.save()
 
             # For peewee have to save inline forms after model was saved
             save_inline(form, model)
 
-            self.on_model_change(form, model)
-
             return True
         except Exception, ex:
             flash(gettext('Failed to update model. %(error)s', error=str(ex)), 'error')