Audit_APP/Models/ProductProvider.cs

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.Trim());
            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 count = db.SaveChanges();
            return count;
        }

        public List<Product> Select()
        {
            //var c = db.Product.SqlQuery("select * from Product").ToList();
            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();//类型0查询
        }

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

        public List<Product> Selects3()
        {
            return db.Product.SqlQuery("select * from Product where ProductType = 3").ToList();//类型2查询
        }

        public List<Product> Selectsql(Product t)
        {
            string sqlselect = "select * from Product Where ProductCode = " + "'" + t.ProductCode.ToString() + "'";
            return db.Product.SqlQuery(sqlselect).ToList();
        }
        public int Update(Product t)
        {
            if (t == null) return 0;
            var model = db.Product.ToList().FirstOrDefault(item => item.ProductCode.Trim() == t.ProductCode);
            if (model == null) return 0;
            model.Color = t.Color;
            model.Price = t.Price;
            model.SUPPLIER = t.SUPPLIER;
            model.ProductName = t.ProductName;
            model.GRAVITY = t.GRAVITY;
            model.Concentration = t.Concentration;
            model.ProductType = t.ProductType;
            int count = db.SaveChanges();
            return count;
        }
    }
}