// Entity Framework Plus

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

​

// @nuget: Microsoft.EntityFrameworkCore.SqlServer

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

​

using System;

using System.Linq;

using Microsoft.EntityFrameworkCore;

using System.Collections.Generic;

using Microsoft.Data.SqlClient;

using Z.EntityFramework.Plus;

​

public class Program

{

    public static void Main()

    {

        using (var context = new EntityContext())

        {

            context.Database.EnsureCreated();

        }

        GenerateData();     

        // Globally

        AuditManager.DefaultConfiguration.Format<Customer>(x => x.IsActive, 

                                                    x => x.ToString().Replace("True","Value: 1").Replace("False","Value: 0"));

​

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

        using (var context = new EntityContext())

        {

            var listToRemove = context.Customers.Where(x => x.IsActive == false ).ToList();

            var listToModify = context.Customers.Where(x => x.IsActive == true ).ToList();

            var listToAdd = new List<Customer>() { new Customer() { Name = "Customer_C", Description = "Description", IsActive = false}};

            context.Customers.AddRange(listToAdd); // add

            context.Customers.RemoveRange(listToRemove); // remove

            listToModify.First().Description = "Updated_A"; // modify

            var audit = new Audit();

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

            // By Instance

            audit.Configuration.Format<Customer>(x => x.CustomerID,

                                      x => "#" + x );

            context.SaveChanges(audit);

​

            // Access to all auditing information

            var entries = audit.Entries;

            FiddleHelper.WriteTable("All Entry",entries);

            foreach(var entry in entries)

            { 

                FiddleHelper.WriteTable("Properties for One Entry",entry.Properties);

            } 

        }

    }

    public static void GenerateData()

    {

        using (var context = new EntityContext())

        {

            context.Customers.Add(new Customer() { Name ="Customer_A", Description = "Description", IsActive = true });

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

            context.SaveChanges();  

        }

    }

​

    public class EntityContext : DbContext

    {

        public EntityContext() 

        {

        }

​

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)

        {

            optionsBuilder.UseSqlServer(new SqlConnection(FiddleHelper.GetConnectionStringSqlServer()));

​

            base.OnConfiguring(optionsBuilder);

        }

        public DbSet<Customer> Customers { 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; }

    }

}