EF Core and Database First: cannot convert error

[spetikala]

Description

Based on this documentation I am trying to implement AutoSave audit logging with database-first approach using Entity Framework Core plus audit.

However on the last line (in AddRange) in below code I get an error (see Exception):

static EntityContext()
{
      AuditManager.DefaultConfiguration.AutoSavePreAction = (context, audit) =>
         (context as EntityContext).AuditEntries.AddRange(audit.Entries);
}

Exception

cannot convert from 'System.Collections.Generic.IEnumerable<Z.EntityFramework.Plus.AuditEntry>' to 'MyProject.MyDataModels.AuditEntries'

Also note that I changed these marked lines:

Fiddle or Project

Fiddle: based on the default DB first fiddle I created this fiddle which produces the same error.

I also created a test project with code first and sqlite connection where everything works fine. Then from those entities I scaffolded the db and get above error.

I uploaded my test project here

Further technical details

• EF version: latest
• EF Plus version: latest
• Database Provider: SQL Server and sqlite

Hope you can help figure out what I am doing wrong.

[JonathanMagnan]

Hello @thorstenschroeder ,

The issue happens because your Import should return a DbAuditEntry and DbAuditEntryProperty type. You currently return the wrong entity type which leads to this error.

Best Regards,

Jon

---

Performance Libraries
context.BulkInsert(list, options => options.BatchSize = 1000);
Entity Framework Extensions • Entity Framework Classic • Bulk Operations • Dapper Plus

Runtime Evaluation
Eval.Execute("x + y", new {x = 1, y = 2}); // return 3
C# Eval Function • SQL Eval Function

[spetikala]

Thanks, I did have the wrong return type.