-

OrmTest/Program.cs

@@ -15,10 +15,10 @@ namespace OrmTest
     {
         static void Main(string[] args)
         {
-            Expression<Func<Student, bool>> exp = it => it.Id > 0;
+            Expression<Func<Student, bool>> exp = it => it.Name!="";
             ExpressionContext expContext = new ExpressionContext(exp, ResolveExpressType.Single);
            // var x = expContext.GetFiledName();
-            var xx = expContext.GetWhere();
+            var xx = expContext.ToString();
 
 
             var b = DateTime.Now;
@@ -26,7 +26,7 @@ namespace OrmTest
             {
                 DbType = DbType.SqlServer,
                 ConnectionString = "server=.;uid=sa;pwd=sasa;database=SqlSugar4XTest",
-                EntityNamespace = "SqlSugar4XTest.Models",
+                EntityNamespace = "OrmTest.Models",
                 IsAutoCloseConnection = false
             };
             SqlSugarClient db = new SqlSugarClient(config);

SqlSugar/Expressions/ExpItems/MemberExpressionResolve.cs

@@ -1,19 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Linq.Expressions;
-using System.Text;
-
-namespace SqlSugar
-{
-    public class MemberExpressionResolve:BaseResolve
-    {
-        public MemberExpressionResolve(Expression exp) : base(exp)
-        {
-            var isLeft = this.IsLeft;
-            this.IsLeft = null;
-            var isSingle=base.Context.IsSingle;
-            var expression = exp as MemberExpression;
-        }
-    }
-}

SqlSugar/Expressions/ExpressionContext.cs

@@ -1,81 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Data.SqlClient;
-using System.Linq;
-using System.Linq.Expressions;
-using System.Text;
-namespace SqlSugar
-{
-    public class ExpressionContext : ExpResolveAccessory
-    {
-        public ResolveExpressType Type { get; set; }
-        public Expression Expression { get; set; }
-        public bool IsSingle { get { return this.Type == ResolveExpressType.Single; } }
-
-        public ExpressionContext(Expression expression, ResolveExpressType type)
-        {
-            this.Type = type;
-            this.Expression = expression;
-        }
-
-        public string GetFiledName()
-        {
-            string reval = null;
-            LambdaExpression lambda = this.Expression as LambdaExpression;
-            var isConvet = lambda.Body.NodeType.IsIn(ExpressionType.Convert);
-            var isMember = lambda.Body.NodeType.IsIn(ExpressionType.MemberAccess);
-            if (!isConvet && !isMember)
-                throw new SqlSugarException(ErrorMessage.ExpFileldError);
-            try
-            {
-                if (isConvet && IsSingle)
-                {
-                    var memberExpr = ((UnaryExpression)lambda.Body).Operand as MemberExpression;
-                    reval = memberExpr.Member.Name;
-                }
-                else if (!isConvet && IsSingle)//isMember
-                {
-                    reval = (lambda.Body as MemberExpression).Member.Name;
-                }
-                else if (isConvet && !IsSingle)
-                {
-                    var memberExpr = ((UnaryExpression)lambda.Body).Operand as MemberExpression;
-                    reval = memberExpr.ToString();
-                }
-                else if (!isConvet && !IsSingle)
-                {
-                    reval = lambda.Body.ToString();
-                }
-            }
-            catch
-            {
-                throw new SqlSugarException(ErrorMessage.ExpFileldError);
-            }
-            return reval;
-        }
-
-        public string GetWhere()
-        {
-            BaseResolve resolve = new BaseResolve(this.Expression);
-            resolve.Context = this;
-            resolve.Start();
-            return resolve.SqlWhere;
-        }
-
-        public string GetSelect() { return ""; }
-
-        public List<SqlParameter> Parameters
-        {
-            get
-            {
-                return PubMethod.IsNullReturnNew(base._Parameters);
-            }
-            set
-            {
-                base._Parameters = value;
-            }
-        }
-
-        public int Index { get; set; }
-    }
-}

SqlSugar/ExpressionsToSql/ExpItems/BaseResolve.cs

@@ -8,7 +8,6 @@ namespace SqlSugar
     public class BaseResolve
     {
         protected Expression Expression { get; set; }
-        protected Expression BaseExpression { get; set; }
         public ExpressionContext Context { get; set; }
         public string SqlWhere { get; set; }
         public bool IsFinished { get; set; }
@@ -19,24 +18,31 @@ namespace SqlSugar
         {
 
         }
-        public BaseResolve(Expression expression)
+        public BaseResolve(ExpressionParameter parameter)
         {
-            this.Expression = expression;
+            this.Expression = parameter.Expression;
+            this.Context = parameter.Context;
         }
 
         public BaseResolve Start()
         {
             this.Index++;
             this.IsFinished = false;
-            this.BaseExpression = null;
             Expression exp = this.Expression;
+            ExpressionParameter parameter = new ExpressionParameter()
+            {
+                Context = this.Context,
+                Expression = exp,
+                IsLeft = this.IsLeft,
+                BaseExpression=this.Expression
+            };
             if (exp is LambdaExpression)
             {
-                return new LambdaExpressionResolve(exp);
+                return new LambdaExpressionResolve(parameter);
             }
             else if (exp is BinaryExpression)
             {
-                return new BinaryExpressionResolve(exp);
+                return new BinaryExpressionResolve(parameter);
             }
             else if (exp is BlockExpression)
             {
@@ -48,19 +54,19 @@ namespace SqlSugar
             }
             else if (exp is MethodCallExpression)
             {
-                return new MethodCallExpressionResolve(exp);
+                return new MethodCallExpressionResolve(parameter);
             }
             else if (exp is ConstantExpression)
             {
-                return new ConstantExpressionResolve(exp);
+                return new ConstantExpressionResolve(parameter);
             }
             else if (exp is MemberExpression)
             {
-                return new MemberExpressionResolve(exp);
+                return new MemberExpressionResolve(parameter);
             }
             else if (exp is UnaryExpression)
             {
-                return new UnaryExpressionResolve(exp);
+                return new UnaryExpressionResolve(parameter);
             }
             else if (exp != null && exp.NodeType.IsIn(ExpressionType.New, ExpressionType.NewArrayBounds, ExpressionType.NewArrayInit))
             {

SqlSugar/ExpressionsToSql/ExpItems/BinaryExpressionResolve.cs

@@ -7,10 +7,10 @@ namespace SqlSugar
 {
     public class BinaryExpressionResolve : BaseResolve
     {
-        public BinaryExpressionResolve(Expression exp) : base(exp)
+        public BinaryExpressionResolve(ExpressionParameter parameter) : base(parameter)
         {
             var expression = this.Expression as BinaryExpression;
-            base.BaseExpression = expression;
+            var baseExpression = parameter.Expression;
             base.IsLeft = true;
             base.Expression = expression.Left;
             base.Start();

SqlSugar/ExpressionsToSql/ExpItems/BlockExpressionResolve.cs

@@ -7,7 +7,7 @@ namespace SqlSugar
 {
     public class BlockExpressionResolve:BaseResolve
     {
-        public BlockExpressionResolve(Expression exp):base(exp)
+        public BlockExpressionResolve(ExpressionParameter parameter) : base(parameter)
         {
 
         }

SqlSugar/ExpressionsToSql/ExpItems/ConditionalExpressionResolve.cs

@@ -7,7 +7,7 @@ namespace SqlSugar
 {
     public class ConditionalExpressionResolve:BaseResolve
     {
-        public ConditionalExpressionResolve(Expression exp) : base(exp)
+        public ConditionalExpressionResolve(ExpressionParameter parameter) : base(parameter)
         {
 
         }

SqlSugar/ExpressionsToSql/ExpItems/ConstantExpressionResolve.cs

@@ -7,7 +7,7 @@ namespace SqlSugar
 {
     public class ConstantExpressionResolve:BaseResolve
     {
-        public ConstantExpressionResolve(Expression exp) : base(exp)
+        public ConstantExpressionResolve(ExpressionParameter parameter) : base(parameter)
         {
 
         }

SqlSugar/ExpressionsToSql/ExpItems/LambdaExpressionResolve.cs

@@ -7,9 +7,9 @@ namespace SqlSugar
 {
     public class LambdaExpressionResolve : BaseResolve
     {
-        public LambdaExpressionResolve(Expression exp) : base(exp)
+        public LambdaExpressionResolve(ExpressionParameter parameter) : base(parameter)
         {
-            LambdaExpression lambda = exp as LambdaExpression;
+            LambdaExpression lambda =base.Expression as LambdaExpression;
             var expression = lambda.Body;
             if (expression.NodeType == ExpressionType.MemberAccess)
             {

SqlSugar/ExpressionsToSql/ExpItems/MemberExpressionResolve.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+namespace SqlSugar
+{
+    public class MemberExpressionResolve : BaseResolve
+    {
+        public MemberExpressionResolve(ExpressionParameter parameter) : base(parameter)
+        {
+            var expression = base.Expression as MemberExpression;
+            var isLeft = this.IsLeft;
+            this.IsLeft = null;
+            var isSingle = base.Context.IsSingle;
+            string field = string.Empty;
+            field = isSingle ? expression.Member.Name : expression.Member.ToString();
+            base.IsFinished = true;
+            if (IsLeft == true)
+            {
+                base.SqlWhere += ExpTool.GetOperator(parameter.BaseExpression.NodeType);
+            }
+            else if (isLeft == false)
+            {
+
+            }
+            else
+            {
+
+            }
+        }
+    }
+}

SqlSugar/ExpressionsToSql/ExpItems/MethodCallExpressionResolve.cs

@@ -7,7 +7,7 @@ namespace SqlSugar
 {
     public class MethodCallExpressionResolve:BaseResolve
     {
-        public MethodCallExpressionResolve(Expression exp) : base(exp)
+        public MethodCallExpressionResolve(ExpressionParameter parameter) : base(parameter)
         {
 
         }

SqlSugar/ExpressionsToSql/ExpItems/UnaryExpressionResolve.cs

@@ -7,7 +7,7 @@ namespace SqlSugar
 {
     public class UnaryExpressionResolve:BaseResolve
     {
-        public UnaryExpressionResolve(Expression exp) : base(exp)
+        public UnaryExpressionResolve(ExpressionParameter parameter) : base(parameter)
         {
 
         }

SqlSugar/ExpressionsToSql/ExpResolveAccessory.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Collections.Generic;
+using System.Data.Common;
 using System.Data.SqlClient;
 using System.Linq;
 using System.Text;
@@ -7,6 +8,6 @@ namespace SqlSugar
 {
     public class ExpResolveAccessory
     {
-        protected List<SqlParameter> _Parameters { get; set; }
+        protected List<DbParameter> _Parameters { get; set; }
     }
 }

SqlSugar/ExpressionsToSql/ExpressionContext.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Collections.Generic;
+using System.Data.Common;
+using System.Data.SqlClient;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+namespace SqlSugar
+{
+    public class ExpressionContext : ExpResolveAccessory
+    {
+        public ResolveExpressType Type { get; set; }
+        public Expression Expression { get; set; }
+        public bool IsSingle { get { return this.Type == ResolveExpressType.Single; } }
+
+        public ExpressionContext(Expression expression, ResolveExpressType type)
+        {
+            this.Type = type;
+            this.Expression = expression;
+        }
+
+        public override string ToString()
+        {
+            BaseResolve resolve = new BaseResolve(new ExpressionParameter() { Expression=this.Expression, Context=this });
+            resolve.Start();
+            return resolve.SqlWhere;
+        }
+
+        public string GetSelect() { return ""; }
+
+        public List<DbParameter> Parameters
+        {
+            get
+            {
+                return PubMethod.IsNullReturnNew(base._Parameters);
+            }
+            set
+            {
+                base._Parameters = value;
+            }
+        }
+
+        public int Index { get; set; }
+    }
+}

SqlSugar/ExpressionsToSql/ExpressionParameter.cs

@@ -9,6 +9,8 @@ namespace SqlSugar
     public class ExpressionParameter
     {
         public Expression Expression { get; set; }
-        public SqlSugarClient DbContext { get; set; }
+        public ExpressionContext Context { get; set; }
+        public bool? IsLeft { get; set; }
+        public Expression BaseExpression { get; set; }
     }
 }

SqlSugar/SqlSugar.csproj

@@ -97,7 +97,7 @@
     <Compile Include="Entities\ConnectionConfig.cs" />
     <Compile Include="Entities\DbColumnInfo.cs" />
     <Compile Include="Entities\DbTableInfo.cs" />
-    <Compile Include="Entities\ExpressionParameter.cs" />
+    <Compile Include="ExpressionsToSql\ExpressionParameter.cs" />
     <Compile Include="Entities\JoinQueryInfo.cs" />
     <Compile Include="Entities\Mapping\MappingColumn.cs" />
     <Compile Include="Entities\Mapping\MappingTable.cs" />
@@ -106,21 +106,21 @@
     <Compile Include="Enum\ApplyType.cs" />
     <Compile Include="Enum\JoinType.cs" />
     <Compile Include="Enum\OrderByType.cs" />
-    <Compile Include="Enum\ResolveExpressType.cs" />
+    <Compile Include="ExpressionsToSql\ResolveExpressType.cs" />
-    <Compile Include="Expressions\ExpConst.cs" />
+    <Compile Include="ExpressionsToSql\ExpConst.cs" />
-    <Compile Include="Expressions\ExpInfo.cs" />
+    <Compile Include="ExpressionsToSql\ExpInfo.cs" />
-    <Compile Include="Expressions\ExpItems\BaseResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\BaseResolve.cs" />
-    <Compile Include="Expressions\ExpItems\BinaryExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\BinaryExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpItems\BlockExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\BlockExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpItems\ConditionalExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\ConditionalExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpItems\ConstantExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\ConstantExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpItems\LambdaExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\LambdaExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpItems\MemberExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\MemberExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpItems\MethodCallExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\MethodCallExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpItems\UnaryExpressionResolve.cs" />
+    <Compile Include="ExpressionsToSql\ExpItems\UnaryExpressionResolve.cs" />
-    <Compile Include="Expressions\ExpResolveAccessory.cs" />
+    <Compile Include="ExpressionsToSql\ExpResolveAccessory.cs" />
-    <Compile Include="Expressions\ExpressionContext.cs" />
+    <Compile Include="ExpressionsToSql\ExpressionContext.cs" />
-    <Compile Include="Expressions\ExpTool.cs" />
+    <Compile Include="ExpressionsToSql\ExpTool.cs" />
     <Compile Include="InstanceFactory.cs" />
     <Compile Include="Interface\ICodeFirst.cs" />
     <Compile Include="Interface\IDb.cs" />

SqlSugar/obj/Debug/SqlSugar.csproj.FileListAbsolute.txt

@@ -3,4 +3,3 @@ F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\bin\Debug\SqlSugar.pdb
 F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\bin\Debug\Newtonsoft.Json.dll
 F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\obj\Debug\SqlSugar.dll
 F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\obj\Debug\SqlSugar.pdb
-F:\MyOpenSource\SqlSugar4.XNew\SqlSugar\SqlSugar\obj\Debug\SqlSugar.csprojResolveAssemblyReference.cache