Question

我想使用存储库模式创建一个窗口应用程序...以下是我的存储库代码。

模型是：

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Text;

namespace Domain.Models
{
   public class Pet
    {
       public int ID { get; set; }


       [Display(Name="Pet Name")]
       public String PetName { get; set; }


       public String Detail { get; set; }


       [DataType(DataType.Currency)]
       public Double Price { get; set; }


       [Display(Name="Pet Code")]
       public int PetCode { get; set; }
    }
}

模型界面：

    using Domain.Models;
    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Text;
    using System.Threading.Tasks;


        namespace Domain.Abstract
        {
            public  interface IPetRepository
            {
                IEnumerable<Pet> Pets { get; }
                bool SAvePet(Pet pet);
                Pet DeletePet(int ID);

            }
        }

接口

的实现

namespace Domain.Concret
{
    public class EFPetRepository:IPetRepository
    {
        public readonly DbAccess context = new DbAccess();

        public IEnumerable<Models.Pet> Pets
        {
            get { return context.Pets ; }
        }

        public bool SAvePet(Models.Pet pet)
        {
            if (pet.ID == 0)
            {
                context.Pets.Add(pet);
            }
            else
            {
                var pt = context.Pets.Find(pet.ID);
                if (pt.ID != null)
                {
                    pt.PetCode = pt.PetCode;
                    pt.PetName = pt.PetName;
                    pt.Price = pt.Price;
                    pt.Detail = pt.Detail;

                }
            }
            try
            {
                context.SaveChanges();
                return true;
            }
            catch (Exception)
            {
                return false;
            }
        }

        public Models.Pet DeletePet(int ID)
        {
            var pt = context.Pets.Find(ID);
            if (pt != null)
            {
                context.Pets.Remove(pt);
                context.SaveChanges();
            }
            return pt;
        }
    }
}

现在我想在窗口形式中使用它...所以如何重用其代码来保存和删除按钮：

    namespace inventryMangt
{
    public partial class pet : Office2007Form
    {
        private readonly IPetRepository repo;
        public pet()
        {
            repo = new EFPetRepository();

            InitializeComponent();

        }







        private void btnadd_Click(object sender, EventArgs e)
        {

        repo.SavePet();
        }

        private void btndelete_Click(object sender, EventArgs e)
        {
           repo.delete();
        }


    }
}

Answer 1

最好的方法是使用Generic存储库，它允许您在调用方法时启动对象。

public static void Save<T>(T model) where T : class
{
  // your Context code for saving
}

// call your method
Pet pet = new Pet();
Save<Pet>(pet)

Answer 2

您可以使用实施＆＃34; EFPetRepository＆＃34;通过添加相关的命名空间/引用，在任何其他项目中接口IPetRepository。它应该如下

    private void btnadd_Click(object sender, EventArgs e)
    {
       var pet = (Models.Pet)sender;           
       pet.petName= "pet1";
       pet.petCode = "p124";
       repo.SavePet(pet);
    }

    private void btndelete_Click(object sender, EventArgs e)
    {
       var pet = (Models.Pet)sender;
       repo.delete(pet.ID);
    }

如何重用存储库中的Save和Delete代码

2 个答案: