From a16658623d80e77ba1c1d9a7519dca69724d812f Mon Sep 17 00:00:00 2001
From: sunkaixuan <610262374@qq.com>
Date: Mon, 28 Apr 2025 15:06:01 +0800
Subject: [PATCH] Add  queryable.LeftJoinIF(queryable)

---
 .../QueryableProvider06-10.cs                 | 90 +++++++++++++++++++
 .../QueryableProvider11-12.cs                 | 18 ++++
 .../SqlSugar/Interface/IQueryable.cs          | 10 +++
 3 files changed, 118 insertions(+)

diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs
index 2791c19c0..11e58118a 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider06-10.cs
@@ -110,6 +110,24 @@ namespace SqlSugar
             result.QueryBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6,T7> LeftJoinIF<T7>(bool isJoin, ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression)
+        {
+            var result = LeftJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6,T7> InnerJoinIF<T7>(bool isJoin, ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression)
+        {
+            var result = InnerJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7> LeftJoin<T7>(Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T7>();
@@ -924,6 +942,24 @@ namespace SqlSugar
             result.QueryBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7,T8> LeftJoinIF<T8>(bool isJoin, ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression)
+        {
+            var result = LeftJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> InnerJoinIF<T8>(bool isJoin, ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression)
+        {
+            var result = InnerJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> LeftJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T8>();
@@ -1747,6 +1783,24 @@ namespace SqlSugar
             result.QueryBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> LeftJoinIF<T9>(bool isJoin, ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression)
+        {
+            var result = LeftJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> InnerJoinIF<T9>(bool isJoin, ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression)
+        {
+            var result = InnerJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> LeftJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T9>();
@@ -2506,6 +2560,24 @@ namespace SqlSugar
             result.QueryBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoinIF<T10>(bool isJoin, ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9,T10, bool>> joinExpression)
+        {
+            var result = LeftJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoinIF<T10>(bool isJoin, ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9,T10, bool>> joinExpression)
+        {
+            var result = InnerJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T10>();
@@ -3275,6 +3347,24 @@ namespace SqlSugar
             result.QueryBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11> LeftJoinIF<T11>(bool isJoin, ISugarQueryable<T11> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression)
+        {
+            var result = LeftJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10,T11> InnerJoinIF<T11>(bool isJoin, ISugarQueryable<T11> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression)
+        {
+            var result = InnerJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11> LeftJoin<T11>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T11>();
diff --git a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs
index 9053c00b6..59d40cef5 100644
--- a/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Abstract/QueryableProvider/QueryableProvider11-12.cs
@@ -106,6 +106,24 @@ namespace SqlSugar
             result.QueryBuilder.LambdaExpressions.ParameterIndex = this.QueryBuilder.LambdaExpressions.ParameterIndex;
             return result;
         }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12> LeftJoinIF<T12>(bool isJoin, ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression)
+        {
+            var result = LeftJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
+        public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> InnerJoinIF<T12>(bool isJoin, ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression)
+        {
+            var result = InnerJoin(joinQueryable, joinExpression);
+            if (isJoin == false)
+            {
+                result.QueryBuilder.JoinQueryInfos.Remove(result.QueryBuilder.JoinQueryInfos.Last());
+            }
+            return result;
+        }
         public ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> LeftJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression)
         {
             this.Context.InitMappingInfo<T12>();
diff --git a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
index 80e7f5a23..4f9a6bc2e 100644
--- a/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
+++ b/Src/Asp.NetCore2/SqlSugar/Interface/IQueryable.cs
@@ -934,6 +934,8 @@ namespace SqlSugar
         ISugarQueryable<TResult> SelectMergeTable<TResult>(Expression<Func<T, T2, T3, T4, T5,T6, TResult>> expression);
         ISugarQueryable<T, T2, T3, T4, T5, T6,T7> LeftJoinIF<T7>(bool isLeftJoin, Expression<Func<T, T2, T3, T4, T5, T6,T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6,T7> InnerJoinIF<T7>(bool isJoin, Expression<Func<T, T2, T3, T4, T5, T6,T7, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7> LeftJoinIF<T7>(bool isJoin, ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7> InnerJoinIF<T7>(bool isJoin, ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7> LeftJoin<T7>(ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7> InnerJoin<T7>(ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7> RightJoin<T7>(ISugarQueryable<T7> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, bool>> joinExpression);
@@ -1091,6 +1093,8 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> LeftJoin<T8>(ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> InnerJoin<T8>(ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> RightJoin<T8>(ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> LeftJoinIF<T8>(bool isJoin, ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> InnerJoinIF<T8>(bool isJoin, ISugarQueryable<T8> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> LeftJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7,T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> FullJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8> InnerJoin<T8>(Expression<Func<T, T2, T3, T4, T5, T6, T7,T8, bool>> joinExpression);
@@ -1240,6 +1244,8 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> LeftJoin<T9>(ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> InnerJoin<T9>(ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> RightJoin<T9>(ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> LeftJoinIF<T9>(bool isJoin, ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> InnerJoinIF<T9>(bool isJoin, ISugarQueryable<T9> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9> LeftJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8,T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9> FullJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8,T9> InnerJoin<T9>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8,T9, bool>> joinExpression);
@@ -1390,6 +1396,8 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoin<T10>(ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoin<T10>(ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> RightJoin<T10>(ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoinIF<T10>(bool isJoin, ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoinIF<T10>(bool isJoin, ISugarQueryable<T10> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> LeftJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9,T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> FullJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10> InnerJoin<T10>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, bool>> joinExpression);
@@ -1679,6 +1687,8 @@ namespace SqlSugar
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> LeftJoin<T12>(ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> InnerJoin<T12>(ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> RightJoin<T12>(ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> LeftJoinIF<T12>(bool isJoin, ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
+        ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> InnerJoinIF<T12>(bool isJoin, ISugarQueryable<T12> joinQueryable, Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12> LeftJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12> FullJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, bool>> joinExpression);
         ISugarQueryable<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12> InnerJoin<T12>(Expression<Func<T, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11,T12, bool>> joinExpression);