change incorrect 'error' messages to 'success' (#1274)

flask_admin/contrib/mongoengine/view.py

@@ -671,7 +671,7 @@ class ModelView(BaseModelView):
             flash(ngettext('Record was successfully deleted.',
                            '%(count)s records were successfully deleted.',
                            count,
-                           count=count), 'error')
+                           count=count), 'success')
         except Exception as ex:
             if not self.handle_view_exception(ex):
                 flash(gettext('Failed to delete records. %(error)s', error=str(ex)),

flask_admin/contrib/peewee/view.py

@@ -498,7 +498,7 @@ class ModelView(BaseModelView):
             flash(ngettext('Record was successfully deleted.',
                            '%(count)s records were successfully deleted.',
                            count,
-                           count=count), 'error')
+                           count=count), 'success')
         except Exception as ex:
             if not self.handle_view_exception(ex):
                 flash(gettext('Failed to delete records. %(error)s', error=str(ex)), 'error')

flask_admin/contrib/pymongo/view.py

@@ -395,6 +395,6 @@ class ModelView(BaseModelView):
             flash(ngettext('Record was successfully deleted.',
                            '%(count)s records were successfully deleted.',
                            count,
-                           count=count))
+                           count=count), 'success')
         except Exception as ex:
             flash(gettext('Failed to delete records. %(error)s', error=str(ex)), 'error')

flask_admin/contrib/sqla/view.py

@@ -1106,7 +1106,7 @@ class ModelView(BaseModelView):
             flash(ngettext('Record was successfully deleted.',
                            '%(count)s records were successfully deleted.',
                            count,
-                           count=count), 'error')
+                           count=count), 'success')
         except Exception as ex:
             if not self.handle_view_exception(ex):
                 raise