jiance-analysis/Uninpho.DBOperation/Operation/Demo2_Updateable.cs

using SqlSugar;
using System;
using System.Collections.Generic;
using System.Data;
using Uninpho.DBOperation.Model;


namespace Uninpho.DBOperation.Operation
{
    public class Demo2_Updateable
    {
        public static void Test()
        {


            SqlSugarClient db =  Config.GetPgClient(); 
            /*** 1.entity or List ***/

            var updateObj = new User() { Id = 1, Name = "order1" };
            var updateObjs = new List<User> {
                 new User() { Id = 11, Name = "order11" },
                 new User() { Id = 12, Name = "order12" }
            };

            //update all columns by primary key
            var result = db.Updateable(updateObj).ExecuteCommand();//update single
            var result2 = db.Updateable(updateObjs).ExecuteCommand();//update List<Class>

            

            //If there is no primary key
            var result5 = db.Updateable(updateObj).WhereColumns(it => new { it.Id }).ExecuteCommand();//update single by id
            var result6 = db.Updateable(updateObjs).WhereColumns(it => new { it.Id }).ExecuteCommand();//update List<Class> by id




            /*** 2.by expression ***/

            //update  name,createtime
            var result7 = db.Updateable<User>(it => new User() { Name = "a" }).Where(it => it.Id == 11).ExecuteCommand();
            var result71 = db.Updateable<User>().SetColumns(it => new User() { Name = "a" }).Where(it => it.Id == 11).ExecuteCommand();
            //only update name
            var result8 = db.Updateable<User>(it => it.Name == "Name").Where(it => it.Id == 1).ExecuteCommand();
            var result81 = db.Updateable<User>()
                .SetColumns(it => it.Name == "Name" )
                  
                .Where(it => it.Id == 1).ExecuteCommand();
            //




            /*** 3.by Dictionary ***/
            var dt = new Dictionary<string, object>();
            dt.Add("id", 1);
            dt.Add("name", "abc");
            dt.Add("createTime", DateTime.Now);
            var dtList = new List<Dictionary<string, object>>();
            dtList.Add(dt);

            var t66 = db.Updateable(dt).AS("order").WhereColumns("id").ExecuteCommand();
            var t666 = db.Updateable(dtList).AS("order").WhereColumns("id").ExecuteCommand();



            /*** 4.Other instructions ***/

            var caseValue = "1";
            //Do not update NULL columns
            db.Updateable(updateObj).IgnoreColumns(ignoreAllNullColumns: true).ExecuteCommand();

            //if 1 update name else if 2 update name,createtime
            db.Updateable(updateObj)
                            .UpdateColumnsIF(caseValue == "1", it => new { it.Name })
                            .UpdateColumnsIF(caseValue == "2", it => new { it.Name })
                            .ExecuteCommand();
            //Use Lock
            db.Updateable(updateObj).With(SqlWith.UpdLock).ExecuteCommand();

            //Where Sql
            //db.Updateable(updateObj).Where("id=@x", new { x = 1 }).ExecuteCommand();

            Console.WriteLine("#### Updateable End ####");
        }

    }
}