20230201_145_upperpc/InSituLaboratory.Service/BaseService.cs

using InSituLaboratory.Base;
using InSituLaboratory.IService;
using Microsoft.Data.SqlClient;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.Storage;
using System.Linq.Expressions;

namespace InSituLaboratory.Service
{
    public class BaseService : IBaseService
    {
        protected readonly DbContext Context;
        public BaseService(DbContext context)
        {
            Context = context;
        }

        #region Query

        /// <summary>
        /// Context <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>EFcore<72><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Context
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="id"></param>
        /// <returns></returns>
        public T Find<T>(int id) where T : class
        {
            return Context.Set<T>().Find(id);
        }

        /// <summary>
        ///  <20><>Ӧ<EFBFBD>ñ<EFBFBD>¶<EFBFBD><C2B6><EFBFBD>϶<EFBFBD>ʹ<EFBFBD><CAB9><EFBFBD>ߣ<EFBFBD><DFA3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <returns></returns>
        //[Obsolete("<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD>ã<EFBFBD>using <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽĿ¼<C4BF><C2BC><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD>")]
        public IQueryable<T> Set<T>() where T : class
        {
            return Context.Set<T>();
        }

        /// <summary>
        /// <20><><EFBFBD><EFBFBD><EFBFBD>Ǻ<EFBFBD><C7BA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>϶˸<CFB6><CBB8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѯ
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="funcWhere"></param>
        /// <returns></returns>
        public IQueryable<T> Query<T>(Expression<Func<T, bool>> funcWhere) where T : class
        {
            return Context.Set<T>().Where(funcWhere);
        }

        /// <summary>
        /// <20><>ҳ<EFBFBD><D2B3>ѯ
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <typeparam name="S"></typeparam>
        /// <param name="funcWhere"></param>
        /// <param name="pageSize"></param>
        /// <param name="pageIndex"></param>
        /// <param name="funcOrderby"></param>
        /// <param name="isAsc"></param>
        /// <returns></returns>
        public PageResult<T> QueryPage<T, S>(Expression<Func<T, bool>> funcWhere, int pageSize, int pageIndex, Expression<Func<T, S>> funcOrderby, bool isAsc = true) where T : class
        {

            var list = Set<T>();
            if (funcWhere != null)
            {
                list = list.Where(funcWhere);
            }
            if (isAsc)
            {
                list = list.OrderBy(funcOrderby);
            }
            else
            {
                list = list.OrderByDescending(funcOrderby);
            }
            PageResult<T> result = new PageResult<T>()
            {
                DataList = list.Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList(),
                PageIndex = pageIndex,
                PageSize = pageSize,
                TotalCount = list.Count()
            };
            return result;
        }
        #endregion

        #region Insert
        /// <summary>
        /// <20><>ʹ<EFBFBD><CAB9><EFBFBD><EFBFBD>  <20><><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA>Commit
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="t"></param>
        /// <returns></returns>
        public T Insert<T>(T t) where T : class
        {
            Context.Set<T>().Add(t);
            Commit();//д<><D0B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>  <20>Ͳ<EFBFBD><CDB2><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD><EFBFBD>commit  <20><>д<EFBFBD><D0B4><EFBFBD><EFBFBD>Ҫ
            return t;
        }

        public IEnumerable<T> Insert<T>(IEnumerable<T> tList) where T : class
        {
            Context.Set<T>().AddRange(tList);
            Commit();//һ<><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>  <20><><EFBFBD><EFBFBD>sql
            return tList;
        }
        #endregion

        #region Update
        /// <summary>
        /// <20><>û<EFBFBD><C3BB>ʵ<EFBFBD>ֲ<EFBFBD>ѯ<EFBFBD><D1AF>ֱ<EFBFBD>Ӹ<EFBFBD><D3B8>µ<EFBFBD>,<2C><>ҪAttach<63><68>State
        /// 
        /// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ѿ<EFBFBD><D1BE><EFBFBD>context<78><74>ֻ<EFBFBD><D6BB><EFBFBD>ٷ<EFBFBD>װһ<D7B0><D2BB>(<28>ھ<EFBFBD><DABE><EFBFBD><EFBFBD><EFBFBD>service)
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="t"></param>
        public void Update<T>(T t) where T : class
        {

            if (t == null) throw new Exception("t is null");

            Context.Set<T>().Attach(t);//<2F><><EFBFBD><EFBFBD><EFBFBD>ݸ<EFBFBD><DDB8>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģ<EFBFBD>֧<EFBFBD><D6A7>ʵ<EFBFBD><CAB5><EFBFBD>޸ĺ<DEB8><C4BA><EFBFBD>ʵ<EFBFBD>壬<EFBFBD><E5A3AC><EFBFBD><EFBFBD>ΪUnChanged
            Context.Entry(t).State = EntityState.Modified;
            Commit();//<2F><><EFBFBD><EFBFBD> Ȼ<><C8BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪUnChanged
        }

        public void Update<T>(IEnumerable<T> tList) where T : class
        {

            foreach (var t in tList)
            {
                Context.Set<T>().Attach(t);
                Context.Entry(t).State = EntityState.Modified;
            }
            Commit();
        }

        #endregion

        #region Delete
        /// <summary>
        /// <20>ȸ<EFBFBD><C8B8><EFBFBD> <20><>ɾ<EFBFBD><C9BE>
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="t"></param>
        public void Delete<T>(T t) where T : class
        {

            if (t == null) throw new Exception("t is null");
            Context.Set<T>().Attach(t);
            Context.Set<T>().Remove(t);
            Commit();
        }

        /// <summary>
        /// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӷǼ<D3B7>ʱcommit<69>汾<EFBFBD>ģ<EFBFBD>
        /// <20><><EFBFBD><EFBFBD>protected
        /// </summary>
        /// <typeparam name="T"></typeparam>
        /// <param name="Id"></param>
        public void Delete<T>(int Id) where T : class
        {

            T t = Find<T>(Id);//Ҳ<><D2B2><EFBFBD>Ը<EFBFBD><D4B8><EFBFBD>
            if (t == null) throw new Exception("t is null");
            Context.Set<T>().Remove(t);
            Commit();
        }

        public void Delete<T>(IEnumerable<T> tList) where T : class
        {

            foreach (var t in tList)
            {
                Context.Set<T>().Attach(t);
            }
            Context.Set<T>().RemoveRange(tList);
            Commit();
        }
        #endregion

        #region Other

        /// <summary>
        /// <20><>ʡ<EFBFBD><CAA1><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>Զ<EFBFBD><D4B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>SaveChange <20><><EFBFBD>ǰѶ<C7B0><D1B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͳһ<CDB3>ύ
        /// </summary>
        public void Commit()
        {
            Context.SaveChanges();
        }

        public IQueryable<T> ExcuteQuery<T>(string sql, SqlParameter[] parameters) where T : class
        {
            return null;
        }

        public void Excute<T>(string sql, SqlParameter[] parameters) where T : class
        {
            IDbContextTransaction trans = null;
            //DbContextTransaction trans = null;
            try
            {
                trans = Context.Database.BeginTransaction(); //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
                //this.Context.Database.ExecuteSqlRaw(sql, parameters);
                trans.Commit();
            }
            catch (Exception)
            {
                if (trans != null)
                    trans.Rollback();
                throw;
            }
        }

        public virtual void Dispose()
        {
            if (Context != null)
            {
                Context.Dispose();
            }
        }
        #endregion
    }

}