// Entity Framework Plus

// Doc: https://entityframework-plus.net/audit

​

// @nuget: EntityFramework

// @nuget: Z.EntityFramework.Plus.EF6

​

using System;

using System.Data.Entity;

using System.Linq;

using Z.EntityFramework.Plus;

​

public class Program

{

    public static void Main()

    {           

        // Audit : Easily tracks changes, exclude/include entity or property and auto save audit entries in the database.

        using (var context = new EntityContext())

        {            

            context.Customers.Add(new Customer() { Name = "Customer_C", Description = "Description", IsActive = false}); // add

            var audit = new Audit();

            audit.CreatedBy = "ZZZ Projects"; // Optional

            context.SaveChanges(audit);

​

            FiddleHelper.WriteTable("1 - Audit Entries", context.AuditEntries);

            FiddleHelper.WriteTable("2 - Audit Entries Properties", context.AuditEntries.SelectMany(x => x.Properties));

        }

    }

​

    public class EntityContext : DbContext

    {

        public EntityContext() : base(FiddleHelper.GetConnectionStringSqlServer())

        {

            // Custom Class: Globally

            AuditManager.DefaultConfiguration

                .AuditEntryFactory = args => 

                new CustomAuditEntry() { Time_CustomAuditEntry = DateTime.Now  };

​

            AuditManager.DefaultConfiguration

                .AuditEntryPropertyFactory = args => 

                new CustomAuditEntryProperty() { Text_CustomAuditEntryProperty = "Text" };

            AuditManager.DefaultConfiguration.AutoSavePreAction = (context, audit) => {

                ((EntityContext)context).AuditEntries.AddRange(audit.Entries.Cast<CustomAuditEntry>());

            };

        }

        public DbSet<Customer> Customers { get; set; }

        public DbSet<CustomAuditEntry> AuditEntries { get; set; }

        public DbSet<CustomAuditEntryProperty> AuditEntryProperties { get; set; }

    } 

    public class Customer

    {

        public int CustomerID { get; set; }

        public string Name { get; set; }

        public string Description { get; set; }

        public Boolean IsActive { get; set; }

    }

    public class CustomAuditEntry : AuditEntry

    {

        public DateTime Time_CustomAuditEntry {get;set;}

    }

    public class CustomAuditEntryProperty : AuditEntryProperty

    {

        public String Text_CustomAuditEntryProperty {get;set;}

    }

}