SqlSugar/Src/Asp.Net/SqlServerTest/UnitTest/UCustom04.cs

using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace OrmTest 
{
    public class UCustom04
    {
        public static void Init() 
        {
            var db = NewUnitTest.Db;
            var sql = db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
               JoinType.Left, o.Id == i.OrderId,
               JoinType.Left, o.CustomId == c.Id
           ))
           .Select<ViewModel>().ToSql().Key;
            UValidate.Check(sql, @"SELECT [o].[Name] AS [Name],[o].[Price] AS [Price],[i].[OrderId] AS [OrderItemOrderId],[i].[Price] AS [OrderItemPrice],[c].[Name] AS [CustomName] FROM [Order] [o] Left JOIN [OrderDetail] [i] ON ( [o].[Id] = [i].[OrderId] )  Left JOIN [Custom] [c] ON ( [o].[CustomId] = [c].[Id] )", "unit");
            var list =
                db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
               JoinType.Left, o.Id == i.OrderId,
               JoinType.Left, o.CustomId == c.Id
           ))
           .Where((o,i,c)=>i.ItemId>0&&c.Id>0)
           .Select<ViewModel>().ToList();
        }
        public class ViewModel
        {
            public string Name { get; set; }
            public decimal Price { get; set; }
            public int OrderItemOrderId { get; set; }
            public int OrderItemPrice { get; set; }
            public string CustomName { get; set; }
        }
    }
}