本仓储过期，看新地址： https://github.com/sunkaixuan/SqlSugar

The current version is no longer maintained. The address above is the new GIT address

#Contact information

Email 610262374@qq.com

QQ Group 225982985

Blog http://www.cnblogs.com/sunkaixuan

#All versions

ASP.NET 4.0+ MSSQL https://github.com/sunkaixuan/SqlSugar

ASP.NET CORE MSSQL https://github.com/sunkaixuan/ASP_NET_CORE_ORM_SqlSugar

ASP.NET 4.0+ MYSQL https://github.com/sunkaixuan/MySqlSugar

ASP.NET CORE MYSQL https://github.com/sunkaixuan/ASP_NET_CORE_ORM_MySqlSugar

ASP.NET 4.0+ Sqlite https://github.com/sunkaixuan/SqliteSugar

ASP.NET CORE Sqlite https://github.com/sunkaixuan/ASP_NET_CORE_ORM_SqliteSugar

ASP.NET 4.0+ ORACLE https://github.com/sunkaixuan/OracleSugar

ASP.NET CORE ORACLE https://github.com/sunkaixuan/ASP_NET_CORE_ORM_OracleSugar

Instance SqlSugar object

using(var db = new SqlSugarClient(ConnectionString)){

	//use object
	var list=db.Queryable<T>().ToList();
	
}

Package instance

/// <summary>
/// SqlSugar
/// </summary>
public class SugarDao
{
	private SugarDao()
	{

	}
	public static string ConnectionString
	{
		get
		{
			string reval = "server=.;uid=sa;pwd=sasa;database=SqlSugarTest"; 
			return reval;
		}
	}
	public static SqlSugarClient GetInstance()
	{
		var db = new SqlSugarClient(ConnectionString);
		db.IsEnableLogEvent = true;//Enable log events
		db.LogEventStarting = (sql, par) => { Console.WriteLine(sql + " " + par+"\r\n"); };
		return db;
	}
}

Use SugarDao

using (var db = SugarDao.GetInstance())
{
	var list=db.Queryable<T>().ToList();
}

1.Select

1.1 queryable

//select all
var student = db.Queryable<Student>().ToList();
var studentDynamic = db.Queryable<Student>().ToDynamic();
var studentJson = db.Queryable<Student>().ToJson();


//select single
var single = db.Queryable<Student>().Single(c => c.id == 1);
//select single by primarykey
var singleByPk = db.Queryable<Student>().InSingle(1);
//select single or default
var singleOrDefault = db.Queryable<Student>().SingleOrDefault(c => c.id == 11111111);
//select single or default
var single2 = db.Queryable<Student>().Where(c => c.id == 1).SingleOrDefault();

//select first
var first = db.Queryable<Student>().Where(c => c.id == 1).First();
var first2 = db.Queryable<Student>().Where(c => c.id == 1).FirstOrDefault();

//between 11 and 20
var page1 = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Skip(10).Take(10).ToList();

//between 11 and 20 
var page2 = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).ToPageList(2, 10);

//get count
var count = db.Queryable<Student>().Where(c => c.id > 10).Count();

//skip 2
var skip = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Skip(2).ToList();

//take 2
var take = db.Queryable<Student>().Where(c => c.id > 10).OrderBy(it => it.id).Take(2).ToList();

//Not like 
string conval = "a";
var notLike = db.Queryable<Student>().Where(c => !c.name.Contains(conval.ToString())).ToList();

//Like
conval = "三";
var like = db.Queryable<Student>().Where(c => c.name.Contains(conval)).ToList();

//where sql string
var student12 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>@id", new { id = 1 }).ToList();
var student13 = db.Queryable<Student>().Where(c => "a" == "a").Where("id>100 and id in( select 1)").ToList();


//is any
bool isAny100 = db.Queryable<Student>().Any(c => c.id == 100);
bool isAny1 = db.Queryable<Student>().Any(c => c.id == 1);


//get max id
object maxId = db.Queryable<Student>().Max(it => it.id);
int maxId1 = db.Queryable<Student>().Max(it => it.id).ObjToInt();
int maxId2 = db.Queryable<Student>().Max<int>("id"); 

//get min id
int minId1 = db.Queryable<Student>().Where(c => c.id > 0).Min(it => it.id).ObjToInt();
int minId2 = db.Queryable<Student>().Where(c => c.id > 0).Min<int>("id");


//order By 
var orderList = db.Queryable<Student>().OrderBy("id desc,name asc").ToList();
//order by 
var order2List = db.Queryable<Student>().OrderBy(it => it.name).OrderBy(it => it.id, OrderByType.desc).ToList(); // order by name as ,order by id desc

//In
var intArray = new[] { "5", "2", "3" };
var intList = intArray.ToList();
var listnew = db.Queryable<Student>().Where(it => intArray.Contains(it.name)).ToList();
var list0 = db.Queryable<Student>().In(it => it.id, 1, 2, 3).ToList();
var list1 = db.Queryable<Student>().In(it => it.id, intArray).ToList();
var list2 = db.Queryable<Student>().In("id", intArray).ToList();
var list3 = db.Queryable<Student>().In(it => it.id, intList).ToList();
var list4 = db.Queryable<Student>().In("id", intList).ToList();
var list6 = db.Queryable<Student>().In(intList).ToList(); //in primary fileds

//group by
var list7 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select("sex,count(*) Count").ToDynamic();
var list8 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).GroupBy(it => it.id).Select("id,sex,count(*) Count").ToDynamic();
List<StudentGroup> list9 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select<StudentGroup>("Sex,count(*) Count").ToList();
List<StudentGroup> list10 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy("sex").Select<StudentGroup>("Sex,count(*) Count").ToList();
//SELECT Sex,Count=count(*)  FROM Student  WHERE 1=1  AND  (id < 20)    GROUP BY Sex --生成结果



//join
var jList = db.Queryable<Student>()
	.JoinTable<School>((s1, s2) => s1.sch_id == s2.id) //默认left join
	.Where<School>((s1, s2) => s1.id == 1)
	.Select("s1.*,s2.name as schName")
	.ToDynamic();

/*join sql
						 SELECT s1.*,s2.name as schName 
						 FROM [Student]  s1 
						 LEFT JOIN [School]  s2 ON  s1.sch_id  = s2.id 
						 WHERE  s1.id  = 1 */

//join and page
var jList2 = db.Queryable<Student>()
	.JoinTable<School>((s1, s2) => s1.sch_id == s2.id) //默认left join
	//left inner join 
	//.JoinTable<School>((s1, s2) => s1.sch_id == s2.id ,JoinType.INNER)
	.Where<School>((s1, s2) => s1.id > 1)
	.OrderBy(s1 => s1.name)
	.Skip(10)
	.Take(20)
	.Select("s1.*,s2.name as schName")
	.ToDynamic();

//join three tables
var jList3 = db.Queryable<Student>()
	.JoinTable<School>((s1, s2) => s1.sch_id == s2.id) // left join  School s2  on s1.id=s2.id
	.JoinTable<School>((s1, s3) => s1.sch_id == s3.id) // left join  School s3  on s1.id=s3.id
	.Where<School>((s1, s2) => s1.id > 1)  // where s1.id>1
	.Where(s1 => s1.id > 0)
	.OrderBy<School>((s1, s2) => s1.id) 
	.Skip(10)
	.Take(20)
	.Select("s1.*,s2.name as schName,s3.name as schName2")//select string
	.ToDynamic();


//join five
List<V_Student> jList4 =
	db.Queryable<Student>()
	.JoinTable<School>((s1, s2) => s1.sch_id == s2.id) // left join  School s2  on s1.id=s2.id
	.JoinTable<School, Area>((s1, s2, a1) => a1.id == s2.AreaId)// left join  Area a1  on a1.id=s2.AreaId  
		.JoinTable<Area, School>((s1, a1, s3) => a1.id == s3.AreaId)// left join  School s3  on a1.id=s3.AreaId  
			.JoinTable<School>((s1, s4) => s1.sch_id == s4.id) // left join  School s2  on s1.id=s4.id
			.Select<School, Area, V_Student>((s1, s2, a1) => new V_Student { id = s1.id, name = s1.name, SchoolName = s2.name, AreaName = a1.name }).ToList();

//join five sql
//SELECT id = s1.id, name = s1.name, SchoolName = s2.name, AreaName = a1.name  
//FROM [Student]   s1 
//LEFT JOIN School  s2 ON  ( s1.sch_id  = s2.id )    
//LEFT JOIN Area  a1 ON  ( a1.id  = s2.AreaId )     
//LEFT JOIN School  s3 ON  ( a1.id  = s3.AreaId )    
//LEFT JOIN School  s4 ON  ( s1.sch_id  = s4.id )    
//WHERE 1=1    


//Join child
var childQuery = db.Queryable<Area>().Where("id=@id").Select(it => new { id = it.id }).ToSql();//create child SQL
string childTableName =SqlSugarTool.PackagingSQL(childQuery.Key);//package sql
var queryable = db.Queryable<Student>()
	.JoinTable<School>((s1, s2) => s1.sch_id == s2.id)  //LEFT JOIN School  s2 ON  ( s1.sch_id  = s2.id )  
	.JoinTable(childTableName, "a1", "a1.id=s2.areaid", new { id = 1 }, JoinType.INNER) //INNER JOIN (SELECT *  FROM [Area]   WHERE 1=1  AND id=@id   ) a1 ON a1.id=s2.areaid
	.OrderBy(s1 => s1.id);

var list = queryable.Select<School, Area, V_Student>((s1, s2, a1) => new V_Student { id = s1.id, name = s1.name, SchoolName = s2.name, AreaName = a1.name })
	.ToPageList(0, 200);
var count2 = queryable.Count();


//append queryable
var queryable2 = db.Queryable<Student>().Where(it => true);
if (maxId.ObjToInt() == 1)
{
	queryable2.Where(it => it.id == 1);
}
else
{
	queryable2.Where(it => it.id == 2);
}
var listJoin = queryable2.ToList();


//queryable SqlSugarClient 
var par = new Queryable<Student>().Where(it => it.id == 1);//声名没有connection对象的Queryable
par.DB = db;
var listPar = par.ToList();


//get sql和 pars
var id = 1;
var sqlAndPars = db.Queryable<Student>().Where(it => it.id == id).OrderBy(it => it.id).ToSql();



//express functions
var par1 = "2015-1-1"; var par2 = "   I have a trim  ";
var r1 = db.Queryable<Student>().Where(it => it.name == par1.ObjToString()).ToList(); //ObjToString if null return ""
var r2 = db.Queryable<InsertTest>().Where(it => it.d1 == par1.ObjToDate()).ToList();
var r3 = db.Queryable<InsertTest>().Where(it => it.id == 1.ObjToInt()).ToList();//ObjToInt if null return 0
var r4 = db.Queryable<InsertTest>().Where(it => it.id == 2.ObjToDecimal()).ToList();
var r5 = db.Queryable<InsertTest>().Where(it => it.id == 3.ObjToMoney()).ToList();
var r6 = db.Queryable<InsertTest>().Where(it => it.v1 == par2.Trim()).ToList();
var convert1 = db.Queryable<Student>().Where(c => c.name == "a".ToString()).ToList();
var convert2 = db.Queryable<Student>().Where(c => c.id == Convert.ToInt32("1")).ToList();
var convert3 = db.Queryable<Student>().Where(c => c.name == par2.ToLower()).ToList();
var convert4 = db.Queryable<Student>().Where(c => c.name == par2.ToUpper()).ToList();
var convert5= db.Queryable<Student>().Where(c => DateTime.Now > Convert.ToDateTime("2015-1-1")).ToList();
var c1 = db.Queryable<Student>().Where(c => c.name.Contains("a")).ToList();
var c2 = db.Queryable<Student>().Where(c => c.name.StartsWith("a")).ToList();
var c3 = db.Queryable<Student>().Where(c => c.name.EndsWith("a")).ToList();
var c4 = db.Queryable<Student>().Where(c => !string.IsNullOrEmpty(c.name)).ToList();
var c5 = db.Queryable<Student>().Where(c => c.name.Equals("小杰")).ToList();
var c6 = db.Queryable<Student>().Where(c => c.name.Length > 4).ToList();
var time = db.Queryable<InsertTest>().Where(c => c.d1>DateTime.Now.AddDays(1)).ToList();
var time2 = db.Queryable<InsertTest>().Where(c => c.d1 > DateTime.Now.AddYears(1)).ToList();
var time3 = db.Queryable<InsertTest>().Where(c => c.d1 > DateTime.Now.AddMonths(1)).ToList();
var intList = intArray.ToList();
var list0 = db.Queryable<Student>().In(it => it.id, 1,2,3).ToList();
var list1 = db.Queryable<Student>().In(it=>it.id, intArray).ToList();
var list2 = db.Queryable<Student>().In("id", intArray).ToList();
var list3 = db.Queryable<Student>().In(it => it.id, intList).ToList();
var list4 = db.Queryable<Student>().In("id", intList).ToList();

//group by
var list7 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select("sex,Count=count(*)").ToDynamic();
var list8 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).GroupBy(it=>it.id).Select("id,sex,Count=count(*)").ToDynamic();
List<SexTotal> list5 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy(it => it.sex).Select<Student, SexTotal>("Sex,Count=count(*)").ToList();
List<SexTotal> list6 = db.Queryable<Student>().Where(c => c.id < 20).GroupBy("sex").Select<Student, SexTotal>    ("Sex,Count=count(*)").ToList();
//SELECT Sex,Count=count(*)  FROM Student  WHERE 1=1  AND  (id < 20)    GROUP BY Sex 


//join
var jList = db.Queryable<Student>()
	.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id) //detault left join
		.Where<Student, School>((s1, s2) => s1.id == 1)
			.Select("s1.*,s2.name as schName")
			.ToDynamic();

//join by page
var jList2 = db.Queryable<Student>()
	.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id) //default left join
		//inner join
		//.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id  ,JoinType.INNER)
		.Where<Student, School>((s1, s2) => s1.id > 1)
			.OrderBy<Student, School>((s1, s2) => s1.name)
				.Skip(10)
				.Take(20)
				.Select("s1.*,s2.name as schName")
				.ToDynamic();

//join select new 
var jList3 = db.Queryable<Student>()
	.JoinTable<Student, School>((s1, s2) => s1.sch_id == s2.id) // left join  School s2  on s1.id=s2.id
		.Where<Student, School>((s1, s2) => s1.id > 1)  // where s1.id>1
			.OrderBy<Student, School>((s1, s2) => s1.id) //order by s1.id no one  ordder   .oderBy().orderby  
				.Skip(1)
				.Take(2)
				.Select<Student, School, classNew>((s1, s2) => new classNew() { newid = s1.id, newname = s2.name, xx_name = s1.name }) 
					.ToList();

1.2 SqlQuery

//to list
List<Student> list1 = db.SqlQuery<Student>("select * from Student");
//to list with par
List<Student> list2 = db.SqlQuery<Student>("select * from Student where id=@id", new { id = 1 });
//to dynamic
dynamic list3 = db.SqlQueryDynamic("select * from student");
//to json
string list4 = db.SqlQueryJson("select * from student");
//get int
var list5 = db.SqlQuery<int>("select top 1 id from Student").SingleOrDefault();
//get dictionary
Dictionary<string, string> list6 = db.SqlQuery<KeyValuePair<string, string>>("select id,name from Student").ToDictionary(it => it.Key, it => it.Value);
//get List<string[]>
var list7 = db.SqlQuery<string[]>("select top 1 id,name from Student").SingleOrDefault();
//get sp result
var spResult = db.SqlQuery<School>("exec sp_school @p1,@p2", new { p1 = 1, p2 = 2 });

//get sp and output 
var pars = SqlSugarTool.GetParameters(new { p1 = 1,p2=0 }); //dynmaic to SqlParameter
db.IsClearParameters = false;//close clear parametrs
pars[1].Direction = ParameterDirection.Output; //set  output
var spResult2 = db.SqlQuery<School>("exec sp_school @p1,@p2 output", pars);
db.IsClearParameters = true;//open  clear parameters
var outPutValue = pars[1].Value;//get output @p2 value

//sp 
var pars2 = SqlSugarTool.GetParameters(new { p1 = 1, p2 = 0 }); 
db.CommandType = CommandType.StoredProcedure;
var spResult3 = db.SqlQuery<School>("sp_school", pars2);
db.CommandType = CommandType.Text;


//get first row first column
string v1 = db.GetString("select '张三' as name");
int v2 = db.GetInt("select 1 as name");
double v3 = db.GetDouble("select 1 as name");
decimal v4 = db.GetDecimal("select 1 as name");
//....

1.3 Sqlable

//join
List<School> dataList = db.Sqlable()
	.From("school", "s")
	.Join("student", "st", "st.id", "s.id", JoinType.INNER)
	.Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
	.Where("s.id>100 and s.id<@id")
	.Where("1=1")
	.OrderBy("id")
	.SelectToList<School/*new model*/>("st.*", new { id = 1 });

//join page
List<School> dataPageList = db.Sqlable()
	.From("school", "s")
	.Join("student", "st", "st.id", "s.id", JoinType.INNER)
	.Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
	.Where("s.id>100 and s.id<100")
	.SelectToPageList<School>("st.*", "s.id", 1, 10);

//page where
List<School> dataPageList2 = db.Sqlable()
	.From("school", "s")
	.Join("student", "st", "st.id", "s.id", JoinType.INNER)
	.Join("student", "st2", "st2.id", "st.id", JoinType.LEFT)
	.Where("s.id>100 and s.id<100 and s.id in (select 1 )" )
	.SelectToPageList<School>("st.*", "s.id", 1, 10);



//-------- Dynmaic OR Json-----//

//join
var list1 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDynamic("*", new { id = 1 });
var list2 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToJson("*", new { id = 1 });
var list3 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToDataTable("*", new { id = 1 });

//page
var list4 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 });
var list5 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageTable("s.*", "l.id", 1, 10, new { id = 1 });
var list6 = db.Sqlable().From("student", "s").Join("school", "l", "s.sch_id", "l.id and l.id=@id", JoinType.INNER).SelectToPageDynamic("s.*", "l.id", 1, 10, new { id = 1 });


//--------append sqlable-----//
Sqlable sable = db.Sqlable().From<Student>("s").Join<School>("l", "s.sch_id", "l.id", JoinType.INNER);
string name = "a";
int id = 1;
if (!string.IsNullOrEmpty(name))
{
	sable = sable.Where("s.name=@name");
}
if (!string.IsNullOrEmpty(name))
{
	sable = sable.Where("s.id=@id or s.id=100");
}
if (id > 0)
{
	sable = sable.Where("l.id in (select top 10 id from school)");
}
var pars = new { id = id, name = name };
int pageCount = sable.Count(pars);
var list7 = sable.SelectToPageList<Student>("s.*", "l.id desc", 1, 20, pars);

2.Insert

//insert item
db.Insert(GetInsertItem());  

//insert list
db.InsertRange(GetInsertList()); 

//insert list (so fast)
db.SqlBulkCopy(GetInsertList()); 


//setting disable insert columns
db.DisableInsertColumns = new string[] { "sex" };
Student s = new Student()
{
	name = "mr" + new Random().Next(1, int.MaxValue),
	sex = "gril"
};

var id = db.Insert(s); // insert  with no 【sex】

3.Update

//update specified column
db.Update<School>(new { name = "蓝翔14" }, it => it.id == 14); //only update name
db.Update<School, int>(new { name = "蓝翔11 23 12", areaId = 2 }, 11, 23, 12);
db.Update<School, string>(new { name = "蓝翔2" }, new string[] { "11", "21" });
db.Update<School>(new { name = "蓝翔2" }, it => it.id == 100);
var array=new int[]{1,2,3};
db.Update<School>(new { name = "蓝翔2" }, it => array.Contains(it.id));// id in 1,2,3

//update list  by enity primary key
var updateResult = db.UpdateRange(GetUpdateList());a

//update list  by enity primary key (so fast)
var updateResult2 = db.SqlBulkReplace(GetUpdateList2());

//update by dictionary
var dic = new Dictionary<string, string>();
dic.Add("name", "第十三条");
dic.Add("areaId", "1");
db.Update<School, int>(dic, 13);


//update  by  entity
db.Update(new School { id = 16, name = "蓝翔16", AreaId = 1 });
db.Update<School>(new School { id = 12, name = "蓝翔12", AreaId = 2 }, it => it.id == 18);
db.Update<School>(new School() { id = 11, name = "青鸟11" });

//settig disable Update Columns
db.DisableUpdateColumns = new string[] { "CreateTime" };//CreateTime no update

TestUpdateColumns updObj = new TestUpdateColumns()
{
	VGUID = Guid.Parse("542b5a27-6984-47c7-a8ee-359e483c8470"),
	Name = "xx",
	Name2 = "xx2",
	IdentityField = 0,
	CreateTime = null
};

db.Update(updObj);

4.Delete

//delete by primary key
db.Delete<School, int>(10);

//delete by exp
db.Delete<School>(it => it.id > 100);//support it=>array.contains(it.id)

//delete by primary key values
db.Delete<School, string>(new string[] { "100", "101", "102" });

//delete by field values
db.Delete<School, string>(it => it.name, new string[] { "" });
db.Delete<School, int>(it => it.id, new int[] { 20, 22 });


//delete by entity
db.Delete(new School() { id = 200 });

//delete by sql where  string
db.Delete<School>("id=@id", new { id = 100 });

//false delete
//db.FalseDelete<school>("is_del", 100);
//sql: update school set is_del=1 where id in(100)
//db.FalseDelete<school>("is_del", it=>it.id==100);

5.Tran

using (SqlSugarClient db = SugarDao.GetInstance())
{
	db.IsNoLock = true; 
	db.CommandTimeOut = 30000; 
	try
	{
		db.BeginTran();
		//db.BeginTran(IsolationLevel.ReadCommitted);+3

		db.CommitTran();
	}
	catch (Exception)
	{
		db.RollbackTran();
		throw;
	}
}

6.Rename tables

public class MappingTable : IDemos
{

	public void Init()
	{
		Console.WriteLine("启动MappingTable.Init");

		//单个设置
		using (var db = SugarDao.GetInstance())
		{
			var list = db.Queryable<V_Student>("Student").ToList();//查询的是 select * from student 而我的实体名称为V_Student
		}


		//全局设置
		using (var db = SugarFactory.GetInstance())
		{
			var list = db.Queryable<V_Student>().ToList();//查询的是 select * from student 而我的实体名称为V_Student
		}
	}


	/// <summary>
	/// 全局配置类
	/// </summary>
	public class SugarConfigs
	{
		//key类名 value表名
		public static List<KeyValue> MpList = new List<KeyValue>(){
			new KeyValue(){ Key="FormAttr", Value="Flow_FormAttr"},
				new KeyValue(){ Key="Student3", Value="Student"},
				new KeyValue(){ Key="V_Student", Value="Student"}
		};
	}

	/// <summary>
	/// SqlSugar实例工厂
	/// </summary>
	public class SugarFactory
	{

		//禁止实例化
		private SugarFactory()
		{

		}
		public static SqlSugarClient GetInstance()
		{
			string connection = SugarDao.ConnectionString; //这里可以动态根据cookies或session实现多库切换
			var db = new SqlSugarClient(connection);

			db.SetMappingTables(SugarConfigs.MpList);//设置关联表 (引用地址赋值，每次赋值都只是存储一个内存地址)



			//批量设置别名表
			//db.ClassGenerating.ForeachTables(db, tableName =>
			//{
			//    db.AddMappingTable(new KeyValue() { Key = tableName.Replace("bbs.",""), Value =  tableName }); //key实体名，value表名
			//});


			return db;
		}
	}
}

7.Rename Columns

//别名列的功能
public class MappingColumns : IDemos
{

	public void Init()
	{
		Console.WriteLine("启动MappingColumns.Init");

		//全局设置
		using (var db = SugarFactory.GetInstance())
		{
			var list = db.Queryable<Student>().Where(it=>it.classId==1).ToList();
		}
	}

	public class Student
	{

		//id
		public int classId { get; set; }

		//name
		public string className { get; set; }

		//sch_id
		public int classSchoolId { get; set; }

		public int isOk { get; set; }
	}

	/// <summary>
	/// 全局配置别名列（不区分表）
	/// </summary>
	public class SugarConfigs
	{
		//key实体字段名 value表字段名 ，KEY唯一否则异常
		public static List<KeyValue> MpList = new List<KeyValue>(){
			new KeyValue(){ Key="classId", Value="id"},
				new KeyValue(){ Key="className", Value="name"},
				new KeyValue(){ Key="classSchoolId", Value="sch_id"}
		};
	}

	/// <summary>
	/// SqlSugar实例工厂
	/// </summary>
	public class SugarFactory
	{

		//禁止实例化
		private SugarFactory()
		{

		}
		public static SqlSugarClient GetInstance()
		{
			string connection = SugarDao.ConnectionString; //这里可以动态根据cookies或session实现多库切换
			var db = new SqlSugarClient(connection);
			//注意：只有启动属性映射才可以使用SetMappingColumns
			db.IsEnableAttributeMapping = true;
			db.SetMappingColumns(SugarConfigs.MpList);//设置关联列 (引用地址赋值，每次赋值都只是存储一个内存地址)
			return db;
		}
	}
}

#8.Ignore error columns

using (var db = SugarDao.GetInstance())
{
	db.IsIgnoreErrorColumns = true;
}

#9.Create class files

db.ClassGenerating.CreateClassFiles(db, ("e:/TestModels"), "Models");

More http://www.cnblogs.com/sunkaixuan/p/5911334.html

Name		Name	Last commit message	Last commit date
Latest commit History 114 Commits
SqlSugarCore		SqlSugarCore
.gitattributes		.gitattributes
.gitignore		.gitignore
README.md		README.md

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本仓储过期，看新地址： https://github.com/sunkaixuan/SqlSugar

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Instance SqlSugar object

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Use SugarDao

1.Select

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5.Tran

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7.Rename Columns

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本仓储过期 ，看新地址： https://github.com/sunkaixuan/SqlSugar

The current version is no longer maintained. The address above is the new GIT address

Instance SqlSugar object

Package instance

Use SugarDao

1.Select

1.1 queryable

1.3 Sqlable

2.Insert

3.Update

4.Delete

5.Tran

6.Rename tables

7.Rename Columns

More http://www.cnblogs.com/sunkaixuan/p/5911334.html

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