64 lines
3.1 KiB
C#
64 lines
3.1 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Linq.Expressions;
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using System.Text;
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namespace SqlSugar
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{
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public class SubTools
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{
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public static List<ISubOperation> SubItems(ExpressionContext Context)
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{
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return new List<ISubOperation>()
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{
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new SubSelect() { Context=Context },
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new SubWhere(){ Context=Context },
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new SubWhereIF(){ Context=Context },
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new SubAnd(){ Context=Context },
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new SubAndIF(){ Context=Context },
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new SubAny(){ Context=Context },
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new SubNotAny(){ Context=Context },
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new SubBegin(){ Context=Context },
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new SubFromTable(){ Context=Context },
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new SubCount(){ Context=Context },
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new SubMax(){ Context=Context },
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new SubMin(){ Context=Context },
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new SubSum(){ Context=Context },
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new SubAvg(){ Context=Context },
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new SubOrderBy(){ Context=Context },
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new SubOrderByDesc(){ Context=Context },
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new SubGroupBy(){ Context=Context}
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};
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}
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public static string GetSubReplace(ExpressionContext context)
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{
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if (context.SubQueryIndex == 0)
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return string.Empty;
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else
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return "subTableIndex"+context.SubQueryIndex+".";
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}
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public static List<ISubOperation> SubItemsConst = SubItems(null);
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public static string GetMethodValue(ExpressionContext context, Expression item, ResolveExpressType type)
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{
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var newContext = context.GetCopyContext();
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newContext.MappingColumns = context.MappingColumns;
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newContext.MappingTables = context.MappingTables;
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newContext.InitMappingInfo = context.InitMappingInfo;
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newContext.RefreshMapping = context.RefreshMapping;
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newContext.IgnoreComumnList = context.IgnoreComumnList;
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newContext.SqlFuncServices = context.SqlFuncServices;
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newContext.Resolve(item, type);
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context.Index = newContext.Index;
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context.ParameterIndex = newContext.ParameterIndex;
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if (newContext.Parameters.HasValue())
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context.Parameters.AddRange(newContext.Parameters);
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return newContext.Result.GetResultString();
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}
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}
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}
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