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This commit is contained in:
sunkaixuan
2017-09-17 01:18:56 +08:00
parent 585b25157e
commit 86576373d5
16 changed files with 155 additions and 35 deletions
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6
Src/Asp.Net/SqlSugar/ExpressionsToSql/ResolveItems/MethodCallExpressionResolve.cs
View File

@@ -450,14 +450,14 @@ namespace SqlSugar
{ "AddMilliseconds",DateType.Millisecond}
};
private static bool IsContainsArray(MethodCallExpression express, string methodName, bool isValidNativeMethod)
private bool IsContainsArray(MethodCallExpression express, string methodName, bool isValidNativeMethod)
{
return !isValidNativeMethod && express.Method.DeclaringType.Namespace.IsIn("System.Linq", "System.Collections.Generic") && methodName == "Contains";
}
private static bool IsSubMethod(MethodCallExpression express, string methodName)
private bool IsSubMethod(MethodCallExpression express, string methodName)
{
return SubTools.SubItems.Any(it => it.Name == methodName) && express.Object != null && express.Object.Type.Name == "Subqueryable`1";
return SubTools.SubItems(this.Context).Any(it => it.Name == methodName) && express.Object != null && express.Object.Type.Name == "Subqueryable`1";
}
private void CheckMethod(MethodCallExpression expression)
{

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

@@ -8,9 +8,11 @@ namespace SqlSugar
{
public interface ISubOperation
{
ExpressionContext Context { get; set; }
string Name { get; }
string GetValue(ExpressionContext context, Expression expression);
string GetValue(Expression expression);
int Sort { get; }
Expression Expression { get; set; }
}
}

11
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubAnd.cs
View File

@@ -26,12 +26,17 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public ExpressionContext Context
{
get;set;
}
public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
var argExp = exp.Arguments[0];
var result = "AND " + SubTools.GetMethodValue(context, argExp, ResolveExpressType.WhereMultiple);
var selfParameterName = context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
var result = "AND " + SubTools.GetMethodValue(this.Context, argExp, ResolveExpressType.WhereMultiple);
var selfParameterName = this.Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name) + UtilConstants.Dot;
result = result.Replace(selfParameterName, string.Empty);
return result;
}

7
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubAny.cs
View File

@@ -8,6 +8,11 @@ namespace SqlSugar
{
public class SubAny : ISubOperation
{
public ExpressionContext Context
{
get;set;
}
public Expression Expression
{
get;set;
@@ -29,7 +34,7 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public string GetValue(Expression expression)
{
return "EXISTS";
}

7
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubBegin.cs
View File

@@ -29,7 +29,12 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public ExpressionContext Context
{
get;set;
}
public string GetValue(Expression expression)
{
return "SELECT";
}

10
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubFromTable.cs
View File

@@ -28,12 +28,18 @@ namespace SqlSugar
return 300;
}
}
public string GetValue(ExpressionContext context, Expression expression)
public ExpressionContext Context
{
get;set;
}
public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
var resType = exp.Method.ReturnType;
var name = resType.GetGenericArguments().First().Name;
return "FROM "+context.GetTranslationTableName(name, true);
return "FROM "+this.Context.GetTranslationTableName(name, true);
}
}
}

7
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubLeftBracket.cs
View File

@@ -8,6 +8,11 @@ namespace SqlSugar
{
public class SubLeftBracket : ISubOperation
{
public ExpressionContext Context
{
get;set;
}
public Expression Expression
{
get;set;
@@ -29,7 +34,7 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public string GetValue(Expression expression)
{
return "(";
}

7
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubNotAny.cs
View File

@@ -8,6 +8,11 @@ namespace SqlSugar
{
public class SubNotAny : ISubOperation
{
public ExpressionContext Context
{
get;set;
}
public Expression Expression
{
get; set;
@@ -29,7 +34,7 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public string GetValue(Expression expression)
{
return "NOT EXISTS";
}

7
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubRightBracket.cs
View File

@@ -8,6 +8,11 @@ namespace SqlSugar
{
public class SubRightBracket : ISubOperation
{
public ExpressionContext Context
{
get;set;
}
public Expression Expression
{
get;set;
@@ -29,7 +34,7 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public string GetValue(Expression expression)
{
return ")";
}

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

@@ -30,10 +30,15 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression = null)
public ExpressionContext Context
{
get;set;
}
public string GetValue(Expression expression = null)
{
var exp = expression as MethodCallExpression;
return SubTools.GetMethodValue(context, exp.Arguments[0],ResolveExpressType.FieldSingle);
return SubTools.GetMethodValue(this.Context, exp.Arguments[0],ResolveExpressType.FieldSingle);
}
}
}

7
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubSelectDefault.cs
View File

@@ -8,6 +8,11 @@ namespace SqlSugar
{
public class SubSelectDefault : ISubOperation
{
public ExpressionContext Context
{
get;set;
}
public Expression Expression
{
get;set;
@@ -28,7 +33,7 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public string GetValue(Expression expression)
{
return "*";
}

56
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubTop.cs Normal file
View File

@@ -0,0 +1,56 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
namespace SqlSugar
{
public class SubTop : ISubOperation
{
public ExpressionContext Context
{
get;set;
}
public Expression Expression
{
get;set;
}
public string Name
{
get
{
return "Top";
}
}
public int Sort
{
get
{
if (this.Context is SqlServerExpressionContext)
{
return 150;
}
else
{
return 450;
}
}
}
public string GetValue(Expression expression)
{
if (this.Context is SqlServerExpressionContext)
{
return "TOP 1";
}
else {
return "limit 0,1";
}
}
}
}

11
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/Items/SubWhere.cs
View File

@@ -26,12 +26,17 @@ namespace SqlSugar
}
}
public string GetValue(ExpressionContext context, Expression expression)
public ExpressionContext Context
{
get;set;
}
public string GetValue(Expression expression)
{
var exp = expression as MethodCallExpression;
var argExp= exp.Arguments[0];
var result= "WHERE "+SubTools.GetMethodValue(context, argExp, ResolveExpressType.WhereMultiple);
var selfParameterName =context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name)+UtilConstants.Dot;
var result= "WHERE "+SubTools.GetMethodValue(Context, argExp, ResolveExpressType.WhereMultiple);
var selfParameterName = Context.GetTranslationColumnName((argExp as LambdaExpression).Parameters.First().Name)+UtilConstants.Dot;
result = result.Replace(selfParameterName,string.Empty);
return result;
}

14
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubResolve.cs
View File

@@ -52,19 +52,25 @@ namespace SqlSugar
var isubList = this.allMethods.Select(exp =>
{
var methodName = exp.Method.Name;
var item = SubTools.SubItems.First(s => s.Name == methodName);
var items = SubTools.SubItems(this.context);
var item = items.First(s => s.Name == methodName);
if (item is SubWhere && hasWhere == false)
{
hasWhere = true;
}
else if(item is SubWhere)
else if (item is SubWhere)
{
item = SubTools.SubItems.First(s => s is SubAnd);
item = items.First(s => s is SubAnd);
}
item.Context = this.context;
item.Expression = exp;
return item;
}).ToList();
isubList.Insert(0, new SubBegin());
if (isubList.Any(it => it is SubSelect))
{
isubList.Add(new SubTop() { Context=this.context });
}
if (isubList.Any(it => it is SubAny || it is SubNotAny))
{
isubList.Add(new SubLeftBracket());
@@ -74,7 +80,7 @@ namespace SqlSugar
isubList = isubList.OrderBy(it => it.Sort).ToList();
List<string> result = isubList.Select(it =>
{
return it.GetValue(this.context, it.Expression);
return it.GetValue(it.Expression);
}).ToList();
return result;
}

26
Src/Asp.Net/SqlSugar/ExpressionsToSql/Subquery/SubTools.cs
View File

@@ -8,24 +8,28 @@ namespace SqlSugar
{
public class SubTools
{
public static List<ISubOperation> SubItems = new List<ISubOperation>()
public static List<ISubOperation> SubItems(ExpressionContext Context)
{
new SubSelect(),
new SubWhere(),
new SubAnd(),
new SubAny(),
new SubNotAny(),
new SubBegin(),
new SubFromTable()
};
public static string GetMethodValue(ExpressionContext context,Expression item,ResolveExpressType type)
return new List<ISubOperation>()
{
new SubSelect() { Context=Context },
new SubWhere(){ Context=Context },
new SubAnd(){ Context=Context },
new SubAny(){ Context=Context },
new SubNotAny(){ Context=Context },
new SubBegin(){ Context=Context },
new SubFromTable(){ Context=Context }
};
}
public static string GetMethodValue(ExpressionContext context, Expression item, ResolveExpressType type)
{
var newContext = context.GetCopyContext();
newContext.MappingColumns = context.MappingColumns;
newContext.MappingTables = context.MappingTables;
newContext.IgnoreComumnList = context.IgnoreComumnList;
newContext.Resolve(item,type);
newContext.Resolve(item, type);
context.Index = newContext.Index;
context.ParameterIndex = newContext.ParameterIndex;
return newContext.Result.GetResultString();

1
Src/Asp.Net/SqlSugar/SqlSugar.csproj
View File

@@ -82,6 +82,7 @@
<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\Items\SubTop.cs" />
<Compile Include="ExpressionsToSql\Subquery\Subquerable.cs" />
<Compile Include="ExpressionsToSql\Subquery\Items\SubWhere.cs" />
<Compile Include="ExpressionsToSql\Subquery\SubResolve.cs" />