Entity Framework Core Plus Audit - Customization

Problem

You want to customize some fields value like CreatedDate or even more, want to use your own class inheriting from AuditEntry && AuditEntryProperty?

Solution

Use AuditEntryFactory && AuditEntryPropertyFactory

Customize CreatedDate

// using Z.EntityFramework.Plus; // Don't forget to include this.

// Globally
AuditManager.DefaultConfiguration
            .AuditEntryFactory = args => 
			    new AuditEntry() { CreatedDate = DateTime.Now.AddHours(-5) };

// By Instance
var audit = new Audit();
audit.CreatedBy = "ZZZ Projects"; // Optional
audit.Configuration.AuditEntryFactory = args => 
                       new AuditEntry() {CreatedDate = DateTime.Now.AddHours(-5)};
ctx.SaveChanges(audit);

Try it in EF Core

Custom Class

// using Z.EntityFramework.Plus; // Don't forget to include this.

// Globally
AuditManager.DefaultConfiguration
            .AuditEntryFactory = args => 
			    new CustomAuditEntry() { IpAdress = address };

AuditManager.DefaultConfiguration
            .AuditEntryPropertyFactory = args => 
			    new CustomAuditEntryProperty() { CustomField = value };

// By Instance
var audit = new Audit();
audit.CreatedBy = "ZZZ Projects"; // Optional
audit.Configuration.AuditEntryFactory = args => 
			    new CustomAuditEntry() { IpAdress = address };

audit.Configuration.AuditEntryPropertyFactory = args => 
			    new CustomAuditEntryProperty() { CustomField = value };
ctx.SaveChanges(audit);

Try it

Custom DbSet with AutoSave

public class EntityContext : DbContext
{
   // ... context code ...
   public DbSet<CustomAuditEntry> CustomAuditEntries { get; set; }
   public DbSet<CustomAuditEntryProperty> CustomAuditEntryProperties { get; set; }
}

AuditManager.DefaultConfiguration.AutoSavePreAction = (context, audit) =>
    // ADD "Where(x => x.AuditEntryID == 0)" to allow multiple SaveChanges with same Audit
    (context as EntityContext).CustomAuditEntries.AddRange(audit.Entries.Cast<CustomAuditEntry>());

var audit = new Audit();
audit.CreatedBy = "ZZZ Projects"; // Optional
ctx.SaveChanges(audit);