You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
415 lines
19 KiB
415 lines
19 KiB
using SqlSugar;
|
|
using System;
|
|
using System.Collections.Generic;
|
|
using System.Data;
|
|
using System.Dynamic;
|
|
using System.Linq;
|
|
using System.Text;
|
|
|
|
namespace OrmTest
|
|
{
|
|
public class Demo1_Queryable
|
|
{
|
|
|
|
public static void Init()
|
|
{
|
|
EasyExamples();
|
|
QueryConditions();
|
|
JoinTable();
|
|
Async();
|
|
NoEntity();
|
|
Mapper();
|
|
SqlFuncTest();
|
|
Subquery();
|
|
ReturnType();
|
|
ConfiQuery();
|
|
}
|
|
private static void ConfiQuery()
|
|
{
|
|
var db = GetInstance();
|
|
db.ConfigQuery.SetTable<Order>(it => it.Id, it => it.Name, "01", it => it.Id > 1);
|
|
db.ConfigQuery.SetTable<Order>(it => it.Id, it => it.Name, "02", it => it.Id > 2);
|
|
db.ConfigQuery.SetTable<Order>(it => it.Id, it => it.Name, null);
|
|
var list = db.Queryable<OrderItem>().Select(it => new OrderItem
|
|
{
|
|
ItemId = it.ItemId.SelectAll(),
|
|
OrderName = it.OrderId.GetConfigValue<Order>("01")
|
|
}).ToList();
|
|
var list2 = db.Queryable<OrderItem>().Select(it => new OrderItem
|
|
{
|
|
ItemId = it.ItemId.SelectAll(),
|
|
OrderName = it.OrderId.GetConfigValue<Order>("02")
|
|
}).ToList();
|
|
var list3 = db.Queryable<OrderItem>().Select(it => new OrderItem
|
|
{
|
|
ItemId = it.ItemId.SelectAll(),
|
|
OrderName = it.OrderId.GetConfigValue<Order>()
|
|
}).ToList();
|
|
|
|
var list4 = db.Queryable<OrderItem>().Select(it => new OrderItem
|
|
{
|
|
ItemId = it.ItemId.SelectAll(),
|
|
OrderName = it.OrderId.GetConfigValue<Order>()
|
|
})
|
|
.Where(it => it.OrderId.GetConfigValue<Order>() == "order1")
|
|
.OrderBy(it => it.OrderId.GetConfigValue<Order>()).ToList();
|
|
|
|
var list5 = db.Queryable<Order, OrderItem>((o, i) => o.Id == i.OrderId)
|
|
.OrderBy((o, i) => i.OrderId.GetConfigValue<Order>(), OrderByType.Desc)
|
|
.Select<ViewOrder>((o, i) => new ViewOrder()
|
|
{
|
|
Id = o.Id.SelectAll(),
|
|
Name = i.OrderId.GetConfigValue<Order>()
|
|
})
|
|
.ToList();
|
|
}
|
|
private static void EasyExamples()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### Examples Start ####");
|
|
var db = GetInstance();
|
|
var dbTime = db.GetDate();
|
|
var getAll = db.Queryable<Order>().ToList();
|
|
var getAll2 = db.Queryable<Order>().Where(it=>it.CreateTime.Day>=DateTime.Now.Date.Day).ToList();
|
|
var getOrderBy = db.Queryable<Order>().OrderBy(it => it.Name,OrderByType.Desc).ToList();
|
|
var getOrderBy2 = db.Queryable<Order>().OrderBy(it => it.Id).OrderBy(it => it.Name, OrderByType.Desc).ToList();
|
|
var getOrderBy3 = db.Queryable<Order>().OrderBy(it =>new { it.Name,it.Id}).ToList();
|
|
var getRandom = db.Queryable<Order>().OrderBy(it => SqlFunc.GetRandom()).First();
|
|
var getByPrimaryKey = db.Queryable<Order>().InSingle(2);
|
|
var getSingleOrDefault = db.Queryable<Order>().Where(it => it.Id == 1).Single();
|
|
var getFirstOrDefault = db.Queryable<Order>().First();
|
|
var getByWhere = db.Queryable<Order>().Where(it => it.Id == 1 || it.Name == "a").ToList();
|
|
var getByWhere2 = db.Queryable<Order>().Where(it => it.Id == DateTime.Now.Year).ToList();
|
|
var getByFuns = db.Queryable<Order>().Where(it => SqlFunc.IsNullOrEmpty(it.Name)).ToList();
|
|
var getByFuns2 = db.Queryable<Order>().GroupBy(it => it.Name).Select(it => SqlFunc.AggregateDistinctCount(it.Price)).ToList();
|
|
var dp = DateTime.Now;
|
|
var test05 = db.Queryable<Order>().Where(it => it.CreateTime.Month == dp.Month).ToList();
|
|
var fromatList = db.Queryable<Order>().Select(it => it.CreateTime.ToString("%Y-%m")).ToList();
|
|
var test06 = db.Queryable<Order>().Where(it => it.CreateTime.Date.Day >= DateTime.Now.Date.Day).ToList();
|
|
var test07 = db.Queryable<Order>().Select(it => SqlFunc.DateDiff(DateType.Day, Convert.ToDateTime("2021-1-1"), Convert.ToDateTime("2021-1-12"))).ToList();
|
|
var q1 = db.Queryable<Order>().Take(1);
|
|
var q2 = db.Queryable<Order>().Take(2);
|
|
var test02 = db.Union(q1, q2).ToList();
|
|
Console.WriteLine("#### Examples End ####");
|
|
}
|
|
|
|
private static void ReturnType()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### ReturnType Start ####");
|
|
var db = GetInstance();
|
|
List<Order> list = db.Queryable<Order>().ToList();
|
|
|
|
Order item = db.Queryable<Order>().First(it => it.Id == 1);
|
|
|
|
DataTable dataTable = db.Queryable<Order>().Select(it => it.Id).ToDataTable();
|
|
|
|
var json = db.Queryable<Order>().ToJson();
|
|
|
|
List<int> listInt = db.Queryable<Order>().Select(it => it.Id).ToList();
|
|
|
|
var dynamic = db.Queryable<Order>().Select<dynamic>().ToList();
|
|
|
|
var viewModel = db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
|
|
JoinType.Left, o.Id == i.OrderId ,
|
|
JoinType.Left, o.CustomId == c.Id
|
|
))
|
|
.Select<ViewOrder>().ToList();
|
|
|
|
var newDynamic = db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
|
|
JoinType.Left, o.Id == i.OrderId,
|
|
JoinType.Left, o.CustomId == c.Id
|
|
))
|
|
.Select((o, i, c) => new { orderName = o.Name, cusName=c.Name }).ToList();
|
|
|
|
var newClass = db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
|
|
JoinType.Left, o.Id == i.OrderId,
|
|
JoinType.Left, o.CustomId == c.Id
|
|
))
|
|
.Select((o, i, c) => new ViewOrder { Name=o.Name, CustomName=c.Name }).ToList();
|
|
|
|
|
|
var oneClass = db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
|
|
JoinType.Left, o.Id == i.OrderId,
|
|
JoinType.Left, o.CustomId == c.Id
|
|
))
|
|
.Select((o, i, c) => c).ToList();
|
|
|
|
var twoClass = db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
|
|
JoinType.Left, o.Id == i.OrderId,
|
|
JoinType.Left, o.CustomId == c.Id
|
|
))
|
|
.Select((o, i, c) => new { o,i}).ToList();
|
|
|
|
|
|
var mergeList= db.Queryable<Order>()
|
|
.Select(it => new { id = it.Id })
|
|
.MergeTable().Select<Order>().ToList();
|
|
|
|
Console.WriteLine("#### ReturnType End ####");
|
|
}
|
|
|
|
private static void Subquery()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### Subquery Start ####");
|
|
var db = GetInstance();
|
|
|
|
var list = db.Queryable<Order>().Take(10).Select(it => new
|
|
{
|
|
customName=SqlFunc.Subqueryable<Custom>().Where("it.CustomId=id").Select(s=>s.Name),
|
|
customName2 = SqlFunc.Subqueryable<Custom>().Where("it.CustomId = id").Where(s => true).Select(s => s.Name)
|
|
}).ToList();
|
|
|
|
var list2 = db.Queryable<Order>().Where(it => SqlFunc.Subqueryable<OrderItem>().Where(i => i.OrderId == it.Id).Any()).ToList();
|
|
|
|
Console.WriteLine("#### Subquery End ####");
|
|
}
|
|
|
|
private static void SqlFuncTest()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### SqlFunc Start ####");
|
|
var db = GetInstance();
|
|
var index= db.Queryable<Order>().Select(it => SqlFunc.CharIndex("a", "cccacc")).First();
|
|
var list2 = db.Queryable<Order>().Select(it => new
|
|
{
|
|
date = SqlFunc.ToDateShort(it.CreateTime),
|
|
datetime = SqlFunc.ToDate(it.CreateTime)
|
|
}).ToList();
|
|
Console.WriteLine("#### SqlFunc End ####");
|
|
}
|
|
|
|
private static void Mapper()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### Mapper Start ####");
|
|
var db = GetInstance();
|
|
//Creater Table
|
|
db.CodeFirst.InitTables(typeof(Tree));
|
|
db.DbMaintenance.TruncateTable("tree");
|
|
db.Insertable(new Tree() { Id = 1, Name = "root" }).ExecuteCommand();
|
|
db.Insertable(new Tree() { Id = 11, Name = "child1",ParentId=1 }).ExecuteCommand();
|
|
db.Insertable(new Tree() { Id = 12, Name = "child2",ParentId=1 }).ExecuteCommand();
|
|
db.Insertable(new Tree() { Id = 2, Name = "root" }).ExecuteCommand();
|
|
db.Insertable(new Tree() { Id = 22, Name = "child3", ParentId = 2 }).ExecuteCommand();
|
|
db.Insertable(new Tree() { Id = 222, Name = "child222", ParentId = 22 }).ExecuteCommand();
|
|
// Same property name mapping,Both entities have parentId
|
|
var list = db.Queryable<Tree>().Mapper(it => it.Parent, it => it.ParentId).ToList();
|
|
|
|
|
|
//If both entities have parentId, I don't want to associate with parentId.
|
|
var list1 =db.Queryable<Tree>()
|
|
//parent=(select * from parent where id=it.parentid)
|
|
.Mapper(it=>it.Parent,it=>it.ParentId, it=>it.Parent.Id)
|
|
//Child=(select * from parent where ParentId=it.id)
|
|
.Mapper(it => it.Child, it => it.Id, it => it.Parent.ParentId)
|
|
.ToList();
|
|
//one to one
|
|
var list2 = db.Queryable<OrderItemInfo>().Mapper(it => it.Order, it => it.OrderId).ToList();
|
|
|
|
//one to many
|
|
var list3 = db.Queryable<Order>().Mapper(it => it.Items, it => it.Items.First().OrderId).ToList();
|
|
|
|
//many to many
|
|
db.CodeFirst.InitTables<A, B, ABMapping>();
|
|
|
|
db.Insertable(new A() { Name = "A" }).ExecuteCommand();
|
|
db.Insertable(new B() { Name = "B" }).ExecuteCommand();
|
|
db.Insertable(new ABMapping() { AId = 1, BId = 1 }).ExecuteCommand();
|
|
|
|
var list4 = db.Queryable<ABMapping>()
|
|
.Mapper(it => it.A, it => it.AId)
|
|
.Mapper(it => it.B, it => it.BId).ToList();
|
|
|
|
//Manual mode
|
|
var result = db.Queryable<OrderInfo>().Take(10).Select<ViewOrder>().Mapper((itemModel, cache) =>
|
|
{
|
|
var allItems = cache.Get(orderList => {
|
|
var allIds = orderList.Select(it => it.Id).ToList();
|
|
return db.Queryable<OrderItem>().Where(it => allIds.Contains(it.OrderId)).ToList();//Execute only once
|
|
});
|
|
itemModel.Items = allItems.Where(it => it.OrderId==itemModel.Id).ToList();//Every time it's executed
|
|
}).ToList();
|
|
|
|
|
|
var tree = db.Queryable<Tree>().ToTree(it => it.Child, it => it.ParentId, 0);
|
|
var parentList = db.Queryable<Tree>().ToParentList(it => it.ParentId, 22);
|
|
var parentList2 = db.Queryable<Tree>().ToParentList(it => it.ParentId, 222);
|
|
var parentList3 = db.Queryable<Tree>().ToParentList(it => it.ParentId, 2);
|
|
Console.WriteLine("#### End Start ####");
|
|
}
|
|
|
|
private static void NoEntity()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### No Entity Start ####");
|
|
var db = GetInstance();
|
|
|
|
var list = db.Queryable<dynamic>().AS("order").Where("id=id", new { id = 1 }).ToList();
|
|
|
|
var list2 = db.Queryable<dynamic>("o").AS("order").AddJoinInfo("OrderDetail", "i", "o.id=i.OrderId").Where("id=id", new { id = 1 }).Select("o.*").ToList();
|
|
Console.WriteLine("#### No Entity End ####");
|
|
}
|
|
|
|
private static void JoinTable()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### Join Table Start ####");
|
|
var db = GetInstance();
|
|
|
|
//Simple join
|
|
var list = db.Queryable<Order, OrderItem, Custom>((o, i, c) => o.Id == i.OrderId&&c.Id == o.CustomId)
|
|
.Select<ViewOrder>()
|
|
.ToList();
|
|
|
|
//Join table
|
|
var list2 = db.Queryable<Order, OrderItem, Custom>((o, i, c) => new JoinQueryInfos(
|
|
JoinType.Left, o.Id == i.OrderId,
|
|
JoinType.Left, c.Id == o.CustomId
|
|
))
|
|
.Select<ViewOrder>().ToList();
|
|
|
|
//Join queryable
|
|
var query1 = db.Queryable<Order, OrderItem>((o, i) => new JoinQueryInfos(
|
|
JoinType.Left, o.Id == i.OrderId
|
|
))
|
|
.Where(o => o.Name == "jack");
|
|
|
|
var query2 = db.Queryable<Custom>();
|
|
var list3=db.Queryable(query1, query2,JoinType.Left, (p1, p2) => p1.CustomId == p2.Id).Select<ViewOrder>().ToList();
|
|
|
|
Console.WriteLine("#### Join Table End ####");
|
|
}
|
|
|
|
private static void QueryConditions()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### Query Conditions Start ####");
|
|
|
|
SqlSugarClient db = GetInstance();
|
|
|
|
/*** By expression***/
|
|
|
|
//id=@id
|
|
var list = db.Queryable<Order>().Where(it => it.Id == 1).ToList();
|
|
//id=@id or name like '%'+@name+'%'
|
|
var list2 = db.Queryable<Order>().Where(it => it.Id == 1 || it.Name.Contains("jack")).ToList();
|
|
|
|
|
|
//Create expression
|
|
var exp = Expressionable.Create<Order>()
|
|
.And(it => it.Id == 1)
|
|
.Or(it => it.Name.Contains("jack")).ToExpression();
|
|
var list3 = db.Queryable<Order>().Where(exp).ToList();
|
|
|
|
|
|
/*** By sql***/
|
|
|
|
//id=@id
|
|
var list4 = db.Queryable<Order>().Where("id=@id", new { id = 1 }).ToList();
|
|
//id=@id or name like '%'+@name+'%'
|
|
var list5 = db.Queryable<Order>().Where("id=@id or name like @name ", new { id = 1, name = "%jack%" }).ToList();
|
|
|
|
|
|
|
|
/*** By dynamic***/
|
|
|
|
//id=1
|
|
var conModels = new List<IConditionalModel>();
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "1" });//id=1
|
|
var student = db.Queryable<Order>().Where(conModels).ToList();
|
|
|
|
//Complex use case
|
|
List<IConditionalModel> Order = new List<IConditionalModel>();
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "1" });//id=1
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Like, FieldValue = "1" });// id like '%1%'
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.IsNullOrEmpty });
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.In, FieldValue = "1,2,3" });
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.NotIn, FieldValue = "1,2,3" });
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.NoEqual, FieldValue = "1,2,3" });
|
|
conModels.Add(new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.IsNot, FieldValue = null });// id is not null
|
|
|
|
conModels.Add(new ConditionalCollections()
|
|
{
|
|
ConditionalList = new List<KeyValuePair<WhereType, SqlSugar.ConditionalModel>>()// (id=1 or id=2 and id=1)
|
|
{
|
|
//new KeyValuePair<WhereType, ConditionalModel>( WhereType.And ,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "1" }),
|
|
new KeyValuePair<WhereType, ConditionalModel> (WhereType.Or,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "2" }),
|
|
new KeyValuePair<WhereType, ConditionalModel> ( WhereType.And,new ConditionalModel() { FieldName = "id", ConditionalType = ConditionalType.Equal, FieldValue = "2" })
|
|
}
|
|
});
|
|
var list6 = db.Queryable<Order>().Where(conModels).ToList();
|
|
|
|
/*** Conditional builder ***/
|
|
|
|
// use whereif
|
|
string name = "";
|
|
int id = 1;
|
|
var query = db.Queryable<Order>()
|
|
.WhereIF(!string.IsNullOrEmpty(name), it => it.Name.Contains(name))
|
|
.WhereIF(id > 0, it => it.Id == id).ToList();
|
|
//clone new Queryable
|
|
var query2 = db.Queryable<Order>().Where(it => it.Id == 1);
|
|
var list7 = query2.Clone().Where(it => it.Name == "jack").ToList();//id=1 and name = jack
|
|
var list8 = query2.Clone().Where(it => it.Name == "tom").ToList();//id=1 and name = tom
|
|
db.CodeFirst.InitTables<Tree>(); //无限级高性能导航映射
|
|
var treeRoot = db.Queryable<Tree>().Where(it => it.Id == 1).ToList();
|
|
db.ThenMapper(treeRoot, item =>
|
|
{
|
|
item.Child = db.Queryable<Tree>().SetContext(x => x.ParentId, () => item.Id, item).ToList();
|
|
});
|
|
db.ThenMapper(treeRoot.SelectMany(it => it.Child), it =>
|
|
{
|
|
it.Child = db.Queryable<Tree>().SetContext(x => x.ParentId, () => it.Id, it).ToList();
|
|
});
|
|
db.ThenMapper(treeRoot.SelectMany(it => it.Child).SelectMany(it => it.Child), it =>
|
|
{
|
|
it.Child = db.Queryable<Tree>().SetContext(x => x.ParentId, () => it.Id, it).ToList();
|
|
});
|
|
db.ThenMapper(treeRoot.SelectMany(it => it.Child).SelectMany(it => it.Child).SelectMany(it => it.Child), it =>
|
|
{
|
|
it.Child = db.Queryable<Tree>().SetContext(x => x.ParentId, () => it.Id, it).ToList();
|
|
});
|
|
Console.WriteLine("#### Condition Screening End ####");
|
|
|
|
|
|
|
|
}
|
|
|
|
private static void Async()
|
|
{
|
|
Console.WriteLine("");
|
|
Console.WriteLine("#### Async Start ####");
|
|
|
|
SqlSugarClient db = GetInstance();
|
|
var task1 = db.Queryable<Order>().FirstAsync();
|
|
task1.Wait();
|
|
var task2 = db.Queryable<Order>().Where(it => it.Id == 1).ToListAsync();
|
|
|
|
|
|
task2.Wait();
|
|
|
|
Console.WriteLine("#### Async End ####");
|
|
}
|
|
|
|
private static SqlSugarClient GetInstance()
|
|
{
|
|
return new SqlSugarClient(new ConnectionConfig()
|
|
{
|
|
DbType = SqlSugar.DbType.MySql,
|
|
ConnectionString = Config.ConnectionString,
|
|
InitKeyType = InitKeyType.Attribute,
|
|
IsAutoCloseConnection = true,
|
|
AopEvents = new AopEvents
|
|
{
|
|
OnLogExecuting = (sql, p) =>
|
|
{
|
|
Console.WriteLine(sql);
|
|
Console.WriteLine(string.Join(",", p?.Select(it => it.ParameterName + ":" + it.Value)));
|
|
}
|
|
}
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|