57 lines
2.2 KiB
C#
57 lines
2.2 KiB
C#
using MySql.Data.MySqlClient;
|
||
using System;
|
||
using System.Data.Entity;
|
||
using System.Data.Entity.Infrastructure;
|
||
using System.Data.Entity.Migrations;
|
||
using System.Data.Entity.ModelConfiguration;
|
||
using System.Linq;
|
||
using System.Reflection;
|
||
|
||
namespace Learun.DataBase.MySqlEx
|
||
{
|
||
/// <summary>
|
||
/// 版 本 PIT-ADMS V7.0.3 敏捷开发框架
|
||
/// Copyright (c) 2013-2018 Hexagon PPM
|
||
/// 创建人：研发部
|
||
/// 日 期：2017.03.04
|
||
/// 描 述：数据访问(MySql) 上下文
|
||
/// </summary>
|
||
public class DatabaseContext : DbContext, IDisposable, IObjectContextAdapter
|
||
{
|
||
#region 构造函数
|
||
/// <summary>
|
||
/// 初始化一个 使用指定数据连接名称或连接串 的数据访问上下文类 的新实例
|
||
/// </summary>
|
||
/// <param name="connString"></param>
|
||
public DatabaseContext(string connString)
|
||
: base(new MySqlConnection(connString), true)
|
||
{
|
||
this.Configuration.AutoDetectChangesEnabled = false;
|
||
this.Configuration.ValidateOnSaveEnabled = false;
|
||
this.Configuration.LazyLoadingEnabled = false;
|
||
this.Configuration.ProxyCreationEnabled = false;
|
||
|
||
|
||
}
|
||
#endregion
|
||
|
||
#region 重载
|
||
protected override void OnModelCreating(DbModelBuilder modelBuilder)
|
||
{
|
||
System.Data.Entity.Database.SetInitializer<DatabaseContext>(null);
|
||
string assembleFileName = Assembly.GetExecutingAssembly().CodeBase.Replace("Learun.DataBase.MySqlEx.DLL", "Learun.Application.Mapping.DLL").Replace("file:///", "");
|
||
Assembly asm = Assembly.LoadFile(assembleFileName);
|
||
var typesToRegister = asm.GetTypes()
|
||
.Where(type => !String.IsNullOrEmpty(type.Namespace))
|
||
.Where(type => type.BaseType != null && type.BaseType.IsGenericType && type.BaseType.GetGenericTypeDefinition() == typeof(EntityTypeConfiguration<>));
|
||
foreach (var type in typesToRegister)
|
||
{
|
||
dynamic configurationInstance = Activator.CreateInstance(type);
|
||
modelBuilder.Configurations.Add(configurationInstance);
|
||
}
|
||
base.OnModelCreating(modelBuilder);
|
||
}
|
||
#endregion
|
||
}
|
||
}
|