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

namespace Models
{
    public class ProductProvider : IProvider<Product>
    {
        private readonly TicketEntities db = new TicketEntities();
        public int Delete(Product t)//删除
        {
            if (t == null) return 0;
            var model = db.Product.ToList().FirstOrDefault(item => t.ProductCode == item.ProductCode);
            if (model == null) return 0;
            db.Product.Remove(model);
            int count = db.SaveChanges();
            return count;
        }

        public int Insert(Product t)//插入
        {
            if (t == null) return 0;
            if (String.IsNullOrEmpty(t.ProductCode)) return 0;
            db.Product.Add(t);
            int counti = db.SaveChanges();
            return counti;
        }

        public List<Product> Select()
        {
            return db.Product.SqlQuery("select * from Product").ToList();//查询
        }

        public List<Product> Selects0()
        {
            return db.Product.SqlQuery("select * from Product where ProductType = 0").ToList();//查询
        }

        public List<Product> Selects1()
        {
            return db.Product.SqlQuery("select * from Product where ProductType = 1").ToList();//查询
        }
        public List<Product> Selects2()
        {
            return db.Product.SqlQuery("select * from Product where ProductType = 2").ToList();//查询
        }
        public int Update(Product t)
        {
            throw new NotImplementedException();
        }
    }
}