lsm/SqlSugar
1
0
Fork 0
mirror of https://gitee.com/dotnetchina/SqlSugar.git synced 2025-10-15 18:55:07 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Subquery

Browse Source
This commit is contained in:
sunkaixuan
2017-09-17 00:29:48 +08:00
parent 24caf2b6f9
commit 18adc06243
10 changed files with 185 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
Src/Asp.Net/SqlServerTest/Demos/1_Query.cs
View File

@@ -33,9 +33,12 @@ namespace OrmTest.Demo
private static void Subqueryable()
{
var db = GetInstance();
var getAll1 = db.Queryable<Student>()
.Where(it => it.Id == SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id))
.ToList();
var getAll7 = db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Any()).ToList();
var getAll8= db.Queryable<Student>().Where(it => SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).NotAny()).ToList();
var getAll1 = db.Queryable<Student>().Where(it => it.Id == SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id)).ToList();
var getAll2 = db.Queryable<Student, School>((st, sc) => new object[] {
JoinType.Left,st.Id==sc.Id
@@ -46,24 +49,28 @@ namespace OrmTest.Demo
var getAll3 = db.Queryable<Student, School>((st, sc) => new object[] {
JoinType.Left,st.Id==sc.Id
})
.Select(st=>
new {
name=st.Name,
id = SqlFunc.Subqueryable<School>().Where(s => s.Id == st.Id).Select(s => s.Id)
.Select(st =>
new
{
name = st.Name,
id = SqlFunc.Subqueryable<School>().Where(s => s.Id == st.Id).Select(s => s.Id)
})
.ToList();
var getAll4 = db.Queryable<Student>().Select(it =>
new {
name = it.Name,
id = SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id)
}).ToList();
new
{
name = it.Name,
id = SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id)
}).ToList();
var getAll5 = db.Queryable<Student>().Select(it =>
new Student {
new Student
{
Name = it.Name,
Id = SqlFunc.Subqueryable<School>().Where(s => s.Id == it.Id).Select(s => s.Id)
}).ToList();
}
private static void Async()

4
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubAny.cs
View File

@@ -25,13 +25,13 @@ namespace SqlSugar
{
get
{
return 1000;
return 0;
}
}
public string GetValue(ExpressionContext context, Expression expression)
{
return ">0";
return "EXISTS";
}
}
}

37
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubLeftBracket.cs Normal file
View File

@@ -0,0 +1,37 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace SqlSugar
{
public class SubLeftBracket : ISubOperation
{
public Expression Expression
{
get;set;
}
public string Name
{
get
{
return "LeftBracket";
}
}
public int Sort
{
get
{
return 50;
}
}
public string GetValue(ExpressionContext context, Expression expression)
{
return "(";
}
}
}

37
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubNotAny.cs Normal file
View File

@@ -0,0 +1,37 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace SqlSugar
{
public class SubNotAny : ISubOperation
{
public Expression Expression
{
get; set;
}
public string Name
{
get
{
return "NotAny";
}
}
public int Sort
{
get
{
return 0;
}
}
public string GetValue(ExpressionContext context, Expression expression)
{
return "NOT EXISTS";
}
}
}

37
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubRightBracket.cs Normal file
View File

@@ -0,0 +1,37 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace SqlSugar
{
public class SubRightBracket : ISubOperation
{
public Expression Expression
{
get;set;
}
public string Name
{
get
{
return "RightBracket";
}
}
public int Sort
{
get
{
return 500;
}
}
public string GetValue(ExpressionContext context, Expression expression)
{
return ")";
}
}
}

36
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubSelectDefault.cs Normal file
View File

@@ -0,0 +1,36 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace SqlSugar
{
public class SubSelectDefault : ISubOperation
{
public Expression Expression
{
get;set;
}
public string Name
{
get {
return "SelectDefault";
}
}
public int Sort
{
get
{
return 250;
}
}
public string GetValue(ExpressionContext context, Expression expression)
{
return "*";
}
}
}

9
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubResolve.cs
View File

@@ -47,9 +47,14 @@ namespace SqlSugar
var item = SubTools.SubItems.First(s => s.Name == methodName);
item.Expression = exp;
return item;
})
.OrderBy(it => it.Sort).ToList();
}).ToList();
isubList.Insert(0, new SubBegin());
if (isubList.Any(it => it is SubAny||it is SubNotAny)) {
isubList.Add(new SubLeftBracket());
isubList.Add(new SubRightBracket());
isubList.Add(new SubSelectDefault());
}
isubList= isubList.OrderBy(it => it.Sort).ToList();
List<string> result = isubList.Select(it =>
{
return it.GetValue(this.context, it.Expression);

1
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubTools.cs
View File

@@ -14,6 +14,7 @@ namespace SqlSugar
new SubSelect(),
new SubWhere(),
new SubAny(),
new SubNotAny(),
new SubBegin(),
new SubFromTable()
};

5
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Subquerable.cs
View File

@@ -31,6 +31,11 @@ namespace SqlSugar
return default(bool);
}
public bool NotAny()
{
return default(bool);
}
public bool Count()
{
return default(bool);

4
Src/Asp.Net/SqlSugar/SqlSugar.csproj
View File

@@ -73,10 +73,14 @@
<Compile Include="Abstract\DeleteProvider\DeleteableProvider.cs" />
<Compile Include="Enum\DbType.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\ISubAction.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubLeftBracket.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubFromTable.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubAny.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubBegin.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubRightBracket.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubSelect.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubSelectDefault.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubNotAny.cs" />
<Compile Include="ExpressionsToSql\Subquery\Subquerable.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubWhere.cs" />
<Compile Include="ExpressionsToSql\Subquery\SubResolve.cs" />