SqlSugar源码
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using SqlSugar;
using System.Linq.Expressions;
using OrmTest.Models;
namespace OrmTest.UnitTest
{
public class SelectQuery : UnitTestBase
{
private SelectQuery() { }
public SelectQuery(int eachCount)
{
this.Count = eachCount;
}
internal void Init()
{
base.Begin();
for (int i = 0; i < base.Count; i++)
{
Q2();
}
base.End("Method Test");
}
public void Q2()
{
using (var db = GetInstance())
{
//db.Database.IsEnableLogEvent = true;
db.Aop.OnLogExecuting = (sql, pars) =>
{
Console.WriteLine(sql + " " + pars);
};
#region dr ot entity
db.IgnoreColumns.Add("TestId", "Student");
var s1 = db.Queryable<Student>().Select(it => new ViewModelStudent2 { Name = it.Name, Student = it }).ToList();
var s2 = db.Queryable<Student>().Select(it => new { id = it.Id, w = new { x = it } }).ToList();
var s3 = db.Queryable<Student>().Select(it => new { newid = it.Id }).ToList();
var s4 = db.Queryable<Student>().Select(it => new { newid = it.Id, obj = it }).ToList();
var s5 = db.Queryable<Student>().Select(it => new ViewModelStudent2 { Student = it, Name = it.Name }).ToList();
#endregion
#region sql and parameters validate
var t1 = db.Queryable<Student, School>((st, sc) => new object[] {
JoinType.Inner,st.Id==sc.Id
}).GroupBy(st => st.Id).Having(st => SqlFunc.AggregateAvg(st.Id) == 1).Select(st => new { avgId = SqlFunc.AggregateAvg(st.Id) }).ToSql();
base.Check("SELECT AVG(`st`.`ID`) AS `avgId` FROM `STudent` st Inner JOIN `School` sc ON ( `st`.`ID` = `sc`.`Id` ) GROUP BY `st`.`ID` HAVING (AVG(`st`.`ID`) = @Const0 ) ",
new List<SugarParameter>() {
new SugarParameter("@Const0",1)
}
,
t1.Key, t1.Value, " select t1 Error");
var t2 = db.Queryable<School, School>((st, st2) => new object[] {
JoinType.Left,st.Id==st2.Id
})
.Where(st => st.Id > 0)
.Select((st, st2) => new { stid = st.Id, scId = st2.Id, xx = st }).ToSql();
base.Check("SELECT `st`.`Id` AS `stid` , `st2`.`Id` AS `scId` , `st`.`Id` AS `School.Id` , `st`.`Name` AS `School.Name` FROM `School` st Left JOIN `School` st2 ON ( `st`.`Id` = `st2`.`Id` ) WHERE ( `st`.`Id` > @Id0 ) "
, new List<SugarParameter>() {
new SugarParameter("@Id0",0)
}, t2.Key, t2.Value, "select t2 Error");
var t3 = db.Queryable<Student, School, School>((st, sc, sc2) => new object[] {
JoinType.Left,st.SchoolId==sc.Id,
JoinType.Left,sc2.Id==sc.Id
}).Where(st => st.Id > 0)
.Select<School>((st) => new School() { Id = st.Id }).ToSql();
base.Check("SELECT `st`.`ID` AS `Id` FROM `STudent` st Left JOIN `School` sc ON ( `st`.`SchoolId` = `sc`.`Id` ) Left JOIN `School` sc2 ON ( `sc2`.`Id` = `sc`.`Id` ) WHERE ( `st`.`ID` > @Id0 ) ",
new List<SugarParameter>() {
new SugarParameter("@Id0",0)
}, t3.Key, t3.Value, "select t3 Error");
#endregion
}
}
public SqlSugarClient GetInstance()
{
SqlSugarClient db = new SqlSugarClient(new ConnectionConfig() { ConnectionString = Config.ConnectionString, DbType = DbType.MySql });
return db;
}
}
}