RMYY_CallCenter_Api/RMYY_CallCen.../T_Msg_Chat.cs

using RMYY_CallCenter_Api.DB;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace RMYY_CallCenter_Api.Dal
{
   public  class T_Msg_Chat
    {
        public T_Msg_Chat()
        { }
        #region  BasicMethod

        /// <summary>
        /// 得到最大ID
        /// </summary>
        public int GetMaxId()
        {
            return DbHelperSQL.GetMaxID("Id", "T_Msg_Chat");
        }

        /// <summary>
        /// 是否存在该记录
        /// </summary>
        public bool Exists(int Id)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) from T_Msg_Chat");
            strSql.Append(" where Id=@Id");
            SqlParameter[] parameters = {
                    new SqlParameter("@Id", SqlDbType.Int,4)
            };
            parameters[0].Value = Id;

            return DbHelperSQL.Exists(strSql.ToString(), parameters);
        }


        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Model.T_Msg_Chat model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("insert into T_Msg_Chat(");
            strSql.Append("Content,VoiceUrl,CreateDate,FromUserId,ToUserId,ToRoleId,IsToAll,IsDelete,Files)");
            strSql.Append(" values (");
            strSql.Append("@Content,@VoiceUrl,@CreateDate,@FromUserId,@ToUserId,@ToRoleId,@IsToAll,@IsDelete,@Files)");
            strSql.Append(";select @@IDENTITY");
            SqlParameter[] parameters = {
                    new SqlParameter("@Content", SqlDbType.NText),
                    new SqlParameter("@VoiceUrl", SqlDbType.NVarChar,200),
                    new SqlParameter("@CreateDate", SqlDbType.DateTime),
                    new SqlParameter("@FromUserId", SqlDbType.Int,4),
                    new SqlParameter("@ToUserId", SqlDbType.Int,4),
                    new SqlParameter("@ToRoleId", SqlDbType.Int,4),
                    new SqlParameter("@IsToAll", SqlDbType.Int,4),
                    new SqlParameter("@IsDelete", SqlDbType.Int,4),
                      new SqlParameter("@Files", SqlDbType.NVarChar,100)
                    
            };
            parameters[0].Value = model.Content;
            parameters[1].Value = model.VoiceUrl;
            parameters[2].Value = model.CreateDate;
            parameters[3].Value = model.FromUserId;
            parameters[4].Value = model.ToUserId;
            parameters[5].Value = model.ToRoleId;
            parameters[6].Value = model.IsToAll;
            parameters[7].Value = model.IsDelete;
            parameters[8].Value = model.Files;
            object obj = DbHelperSQL.GetSingle(strSql.ToString(), parameters);
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(Model.T_Msg_Chat model)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("update T_Msg_Chat set ");
            strSql.Append("Content=@Content,");
            strSql.Append("VoiceUrl=@VoiceUrl,");
            strSql.Append("CreateDate=@CreateDate,");
            strSql.Append("FromUserId=@FromUserId,");
            strSql.Append("ToUserId=@ToUserId,");
            strSql.Append("ToRoleId=@ToRoleId,");
            strSql.Append("IsToAll=@IsToAll,");
            strSql.Append("IsDelete=@IsDelete");
            strSql.Append(" where Id=@Id");
            SqlParameter[] parameters = {
                    new SqlParameter("@Content", SqlDbType.NText),
                    new SqlParameter("@VoiceUrl", SqlDbType.NVarChar,200),
                    new SqlParameter("@CreateDate", SqlDbType.DateTime),
                    new SqlParameter("@FromUserId", SqlDbType.Int,4),
                    new SqlParameter("@ToUserId", SqlDbType.Int,4),
                    new SqlParameter("@ToRoleId", SqlDbType.Int,4),
                    new SqlParameter("@IsToAll", SqlDbType.Int,4),
                    new SqlParameter("@IsDelete", SqlDbType.Int,4),
                    new SqlParameter("@Id", SqlDbType.Int,4)};
            parameters[0].Value = model.Content;
            parameters[1].Value = model.VoiceUrl;
            parameters[2].Value = model.CreateDate;
            parameters[3].Value = model.FromUserId;
            parameters[4].Value = model.ToUserId;
            parameters[5].Value = model.ToRoleId;
            parameters[6].Value = model.IsToAll;
            parameters[7].Value = model.IsDelete;
            parameters[8].Value = model.Id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 删除一条数据
        /// </summary>
        public bool Delete(int Id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from T_Msg_Chat ");
            strSql.Append(" where Id=@Id");
            SqlParameter[] parameters = {
                    new SqlParameter("@Id", SqlDbType.Int,4)
            };
            parameters[0].Value = Id;

            int rows = DbHelperSQL.ExecuteSql(strSql.ToString(), parameters);
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }
        /// <summary>
        /// 批量删除数据
        /// </summary>
        public bool DeleteList(string Idlist)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("delete from T_Msg_Chat ");
            strSql.Append(" where Id in (" + Idlist + ")  ");
            int rows = DbHelperSQL.ExecuteSql(strSql.ToString());
            if (rows > 0)
            {
                return true;
            }
            else
            {
                return false;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Model.T_Msg_Chat GetModel(int Id)
        {

            StringBuilder strSql = new StringBuilder();
            strSql.Append("select  top 1 Id,Content,VoiceUrl,CreateDate,FromUserId,ToUserId,ToRoleId,IsToAll,Files,IsDelete from T_Msg_Chat ");
            strSql.Append(" where Id=@Id");
            SqlParameter[] parameters = {
                    new SqlParameter("@Id", SqlDbType.Int,4)
            };
            parameters[0].Value = Id;

            Model.T_Msg_Chat model = new Model.T_Msg_Chat();
            DataSet ds = DbHelperSQL.Query(strSql.ToString(), parameters);
            if (ds.Tables[0].Rows.Count > 0)
            {
                return DataRowToModel(ds.Tables[0].Rows[0]);
            }
            else
            {
                return null;
            }
        }


        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Model.T_Msg_Chat DataRowToModel(DataRow row)
        {
            Model.T_Msg_Chat model = new Model.T_Msg_Chat();
            if (row != null)
            {
                if (row["Id"] != null && row["Id"].ToString() != "")
                {
                    model.Id = int.Parse(row["Id"].ToString());
                }
                if (row["Content"] != null)
                {
                    model.Content = row["Content"].ToString();
                }
                
 if (row["Files"] != null)
                {
                    model.Files = row["Files"].ToString();
                }
                if (row["VoiceUrl"] != null)
                {
                    model.VoiceUrl = row["VoiceUrl"].ToString();
                }
                if (row["CreateDate"] != null && row["CreateDate"].ToString() != "")
                {
                    model.CreateDate = DateTime.Parse(row["CreateDate"].ToString());
                }
                if (row["FromUserId"] != null && row["FromUserId"].ToString() != "")
                {
                    model.FromUserId = int.Parse(row["FromUserId"].ToString());
                }
                if (row["ToUserId"] != null && row["ToUserId"].ToString() != "")
                {
                    model.ToUserId = int.Parse(row["ToUserId"].ToString());
                }
                if (row["ToRoleId"] != null && row["ToRoleId"].ToString() != "")
                {
                    model.ToRoleId = int.Parse(row["ToRoleId"].ToString());
                }
                if (row["IsToAll"] != null && row["IsToAll"].ToString() != "")
                {
                    model.IsToAll = int.Parse(row["IsToAll"].ToString());
                }
                if (row["IsDelete"] != null && row["IsDelete"].ToString() != "")
                {
                    model.IsDelete = int.Parse(row["IsDelete"].ToString());
                }
            }
            return model;
        }

        /// <summary>
        /// 获得数据列表
        /// </summary>
        public DataSet GetList(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select Id,Content,VoiceUrl,CreateDate,FromUserId,ToUserId,ToRoleId,IsToAll,IsDelete ,Files");
            strSql.Append(" FROM T_Msg_Chat ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获得前几行数据
        /// </summary>
        public DataSet GetList(int Top, string strWhere, string filedOrder)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select ");
            if (Top > 0)
            {
                strSql.Append(" top " + Top.ToString());
            }
            strSql.Append(" Id,Content,VoiceUrl,CreateDate,FromUserId,ToUserId,ToRoleId,IsToAll,IsDelete ");
            strSql.Append(" FROM T_Msg_Chat ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            strSql.Append(" order by " + filedOrder);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /// <summary>
        /// 获取记录总数
        /// </summary>
        public int GetRecordCount(string strWhere)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("select count(1) FROM T_Msg_Chat ");
            if (strWhere.Trim() != "")
            {
                strSql.Append(" where " + strWhere);
            }
            object obj = DbHelperSQL.GetSingle(strSql.ToString());
            if (obj == null)
            {
                return 0;
            }
            else
            {
                return Convert.ToInt32(obj);
            }
        }
        /// <summary>
        /// 分页获取数据列表
        /// </summary>
        public DataSet GetListByPage(string strWhere, string orderby, int startIndex, int endIndex)
        {
            StringBuilder strSql = new StringBuilder();
            strSql.Append("SELECT * FROM ( ");
            strSql.Append(" SELECT ROW_NUMBER() OVER (");
            if (!string.IsNullOrEmpty(orderby.Trim()))
            {
                strSql.Append("order by T." + orderby);
            }
            else
            {
                strSql.Append("order by T.Id desc");
            }
            strSql.Append(")AS Row, T.*  from T_Msg_Chat T ");
            if (!string.IsNullOrEmpty(strWhere.Trim()))
            {
                strSql.Append(" WHERE " + strWhere);
            }
            strSql.Append(" ) TT");
            strSql.AppendFormat(" WHERE TT.Row between {0} and {1}", startIndex, endIndex);
            return DbHelperSQL.Query(strSql.ToString());
        }

        /*
		/// <summary>
		/// 分页获取数据列表
		/// </summary>
		public DataSet GetList(int PageSize,int PageIndex,string strWhere)
		{
			SqlParameter[] parameters = {
					new SqlParameter("@tblName", SqlDbType.VarChar, 255),
					new SqlParameter("@fldName", SqlDbType.VarChar, 255),
					new SqlParameter("@PageSize", SqlDbType.Int),
					new SqlParameter("@PageIndex", SqlDbType.Int),
					new SqlParameter("@IsReCount", SqlDbType.Bit),
					new SqlParameter("@OrderType", SqlDbType.Bit),
					new SqlParameter("@strWhere", SqlDbType.VarChar,1000),
					};
			parameters[0].Value = "T_Msg_Chat";
			parameters[1].Value = "Id";
			parameters[2].Value = PageSize;
			parameters[3].Value = PageIndex;
			parameters[4].Value = 0;
			parameters[5].Value = 0;
			parameters[6].Value = strWhere;	
			return DbHelperSQL.RunProcedure("UP_GetRecordByPage",parameters,"ds");
		}*/

        #endregion  BasicMethod
        #region  ExtensionMethod

        #endregion  ExtensionMethod
    }
}