I am trying to use InsertOrUpdate method in IRepository. I can insert an entity but not for update. It throws an error saying the same entity key is exists. Do you have any example how to use it ?
And another question. How to create 2 way-binding in Entity Framework ? for example, A task has a assigned person. but from person class, how to automatically has "Tasks" that the person is on. Now i have manual call ITaskIRepository.where(p => p.PersonId == id) to get the task list. I know this is quite not related with ABP, but a help is very appreciated.
PS. if you would like me to split into 2 question, please lets me know.
Thx for help
3 Answer(s)
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Hi,
For your second question, why don't you use navigation collection property in the Person entity (like public virtual ICollection<Task> Tasks)?
For the first one, can you create an issue on Github repository? Also, please copy your code so we may understand it better.
Thanks.
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For the first issue: here is the shot code snap:
I have a IInputDto class said :
public class TheaterUpdate : IInputDto { public int Id;
[Required] public string name; }
Then in a AppService said :
public class TheaterAppService: ITheaterAppService { public void AddOrUpdate(TheaterUpdate entity) { var obj = new Theater() obj.Id = entity.Id; obj.Name = entity.Name; _repo.InsertOrUpdate(obj);
} }
then i will get the Exception said there is already has the same entity key exists. And suggestion ??
For the second issue, i will try in couple days and will feedback asap.
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Replace your this code:
var obj = new Theater() obj.Id = entity.Id; obj.Name = entity.Name; _repo.InsertOrUpdate(obj);
with this one:
var obj = _repo.Get(entity.Id); obj.Name = entity.Name;
No need to call update. This is a better practice then creating a new Theater. Always get entity from repository, update needed fields. You could also use AutoMapper to map values.
For InsertOrUpdate, can you create an issue on Github.
Thanks.
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