public ActionResult PartialCommandUpdate(int id, JsonPatchDocument <TodoItemUpdateDto> pathDoc)
{
/*
* [
* {
* "op": "replace", //replace is the operation, there are other types
* "path": "/howto", //path is the attribute thats gonna be updated
* "value" :"new field value" // value is the new attribute's content
* }
* ]
*
*/
//get the object by the id passed in the url
var todoItemModelFromRepo = _repository.GetTodoItemById(id);
if (todoItemModelFromRepo == null)
{
return(NotFound());
}
//maps the object from the database into a TodoItemUpdateDto model
var todoItemToPatch = _mapper.Map <TodoItemUpdateDto>(todoItemModelFromRepo);
//attempts to merge the patch with the original object
pathDoc.ApplyTo(todoItemToPatch, ModelState);
//return validation error if fails to merge
if (!TryValidateModel(todoItemToPatch))
{
return(ValidationProblem(ModelState));
}
//apply the change to the filtered object
_mapper.Map(todoItemToPatch, todoItemModelFromRepo);
//calls update(but it does do anything since there is no implementation of the method update)
_repository.UpdateTodoItem(todoItemModelFromRepo);
//commits the object merged with the changes [todoItemModelFromRepo]
_repository.SaveChanges();
return(NoContent());
}
public async Task <TodoItem> UpdateTodoItem(TodoItem item)
{
return(await _repo.UpdateTodoItem(item));
}