using iWareCommon.Common.Service;
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using iWareCommon.Utils;
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using iWareDataCore.BASE.Dao;
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using iWareDataCore.BASE.Entity;
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using iWareDataCore.ORM;
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using iWareDataCore.Properties;
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using System;
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using System.Collections.Generic;
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using System.Data.Entity.Validation;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace iWareDataCore.BASE.Service
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{
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public class PlaceTypeService : CommonService<PlaceTypeEntity, BASEPlaceType, DbModelCore>
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{
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private static object Lock = new object();
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private PlaceTypeService() : base(PlaceTypeDao.GetInstance()) { }
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private static PlaceTypeService Instance = null;
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/// <summary>
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/// 获取单例的方法
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/// </summary>
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/// <returns>角色服务的单例实体</returns>
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public static PlaceTypeService GetInstance()
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{
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if (Instance == null)
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{
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lock (Lock)
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{
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if (Instance == null)
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{
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Instance = new PlaceTypeService();
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}
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}
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}
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return Instance;
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}
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public override int Delete(int id, out string msg)
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{
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Delete(new List<int> { id }, out msg);
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return string.IsNullOrEmpty(msg) ? id : -1;
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}
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public override int Delete(List<int> ids, out string msg)
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{
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msg = "";
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using (var dbModel = new DbModelCore())
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{
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try
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{
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var roleUsers = dbModel.BASEPlaceTypes.Where(x => ids.Contains(x.id)).ToList();
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foreach (var roleUser in roleUsers)
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{
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dbModel.BASEPlaceTypes.Remove(roleUser);
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}
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dbModel.SaveChanges();
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return ids.Count;
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}
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catch (DbEntityValidationException ex)
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{
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var errs = ex.EntityValidationErrors.SelectMany(validationResult => validationResult.ValidationErrors).Select(m => m.ErrorMessage);
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msg = string.Join(", ", errs);
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LogTextHelper.WriteLog(Resources.LogDir, this.ToString(), "Delete", msg);
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return 0;
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}
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catch (Exception ex)
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{
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LogTextHelper.WriteLog(Resources.LogDir, this.ToString(), "Delete", ex.Message);
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return 0;
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}
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}
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}
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}
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}
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