RMS.BLL/RMS/MenuBll.cs

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using RMS.Common;
using RMS.EF.Model;
using System;
using System.Collections.Generic;
using System.Data.Entity;
using System.Data.SqlClient;
using System.Linq;
using System.Linq.Dynamic;
using System.Text;
using System.Threading.Tasks;

namespace RMS.BLL
{
    public class MenuBll
    {

        /// <summary>
        /// 新增
        /// </summary>
        /// <param name="model">新增的模型实体</param>
        /// <returns></returns>
        public CommonOutPutVm Add(RMS_Menu model)
        {
            var result = new CommonOutPutVm();
            #region 输入验证
            var errdic = model.Validate();
            if (errdic != null)
            {
                result.ErrorDic = errdic;
                return result;
            }
            #endregion
            #region 默认值赋值
            var now = DateTime.Now;
            model.Id = Guid.NewGuid().ToString();
            model.EDeleted = E_Deleted.Normal;
            model.CreationTime = now;
            model.CreationUser = model.LastUpdateUser;
            model.LastUpdateTime = now;
            #endregion
            using (var db = new RMSEntities())
            {
                using (var tran = db.Database.BeginTransaction())
                {
                    try
                    {
                        #region 存在验证
                        bool exist = db.RMS_Menu.Any(p => p.Deleted == (int)E_Deleted.Normal && p.Id != model.Id
                            && p.ProgramId == model.ProgramId && p.ParentId == model.ParentId && p.Url == model.Url && !string.IsNullOrEmpty(p.Url));
                        if (exist)
                        {
                            result.Message = "菜单已经存在";
                            return result;
                        }
                        #endregion
                        #region 保存
                        db.RMS_Menu.Add(model);
                        int row = db.SaveChanges();
                        if (row != 1)
                        {