parameters: (self, field, value, objs)
docstring: Schedule a field update. 'objs' must be a homogeneous iterable
          collection of model instances (e.g. a QuerySet).
docstring_summary: Schedule a field update. 'objs' must be a homogeneous iterable
          collection of model instances (e.g. a QuerySet).
docstring_tokens: Schedule a field update . objs must be a homogeneous iterable collection of model instances ( e . g . a QuerySet ) .
function: def add_field_update(self, field, value, objs):
          """
          Schedule a field update. 'objs' must be a homogeneous iterable
          collection of model instances (e.g. a QuerySet).
          """
          if not objs.exists():
              return
          model = objs.model
          self.field_updates.setdefault(model, {})
          self.field_updates[model].setdefault((field, value), [])
          self.field_updates[model][(field, value)].append(objs)
function_tokens: def add_field_update ( self , field , value , objs ) : if not objs . exists ( ) : return model = objs . model self . field_updates . setdefault ( model , { } ) self . field_updates [ model ] . setdefault ( ( field , value ) , [ ] ) self . field_updates [ model ] [ ( field , value ) ] . append ( objs )