Product type: Angular Framework type: .net core ABP Framework version: v11
We do have an entity class defined as below:
[Table("Users", Schema = "Mstr")]
[Audited]
public class User
{
public virtual string FamilyName { get; set; }
public virtual string SurName { get; set; }
[NotMapped]
public virtual string DisplayName
{
get => SurName + " " + FamilyName;
private set { }
}
}
This is working just fine. Now we would like to extract the logic part SurName + " " + FamilyName to a helper class which is usually injected with dependency injection. Unfortunately DI is not working for an entity class.
Therefor my question: is there any way in aspnetzero to intercept the creation of new User objects? Is there a method from EF which I could override to execute some additional logic after a User object was created by EF?
6 Answer(s)
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0
Hi @enio aspnetboilerplate generates events for CRUD operations of your entities. Can you please check if it meet your needs? https://aspnetboilerplate.com/Pages/Documents/EventBus-Domain-Events#entity-changes
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0
Hi @musa.demir
Thank you for your hint with the entity-changes events. Unfortunately I am looking for an event which is triggered when I query the data and such a predefined event does not exists. EntityCreatingEventData<>-Event is triggered when a new entity is inserted into the database not when a new entity object was created with data from the database.
Does anyone have another approach?
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0
Hi,
You can also try this approach;
protected override void OnModelCreating(ModelBuilder modelBuilder) { modelBuilder.Entity<User>() .Property(p => p.DisplayName) .HasComputedColumnSql("[SurName ] + ' ' + [FamilyName]"); } -
0
Hi @ismcagdas
Thank you for your hint with the computed column. I already checked out this approach but unfortunately this does not work with Dependency Injection.
Kind regards, marco
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0
Hi @enio
Sorry, I think I couldn't understand your need correctly. Would you like to inject a class to your user entity ? If so, it is not possible. However, you can create a new method in UserManager (or a similar class) and call it right after getting the User from database.
I can't think of a different approach at the moment.
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0
Hi ismagdas
I see that there is currently no matching hook/event available in entity framework or abp. It seems a bit strange to me that apparently there is no need for that.
kind regards, marco
