Synchronization code

DotNetNext · Sep 29, 2023 · 9dcff07 · 9dcff07
1 parent 4ba9ecc
commit 9dcff07
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Showing 4 changed files with 67 additions and 2 deletions.
diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/NavigatManager.cs
@@ -491,7 +491,7 @@ select new
         private void Dynamic(List<object> list, Func<ISugarQueryable<object>, List<object>> selector, EntityInfo listItemEntity, System.Reflection.PropertyInfo navObjectNamePropety, EntityColumnInfo navObjectNameColumnInfo,Expression expression)
         {
             var args = navObjectNameColumnInfo.PropertyInfo.PropertyType.GetGenericArguments();
-            if (args.Length == 0) 
+            if (args.Length == 0)
             {
                 DynamicOneToOne(list,selector,listItemEntity, navObjectNamePropety, navObjectNameColumnInfo,expression);
                 return;
@@ -504,6 +504,10 @@ private void Dynamic(List<object> list, Func<ISugarQueryable<object>, List<objec
             childDb.InitMappingInfo(navEntity);
             var navEntityInfo = childDb.EntityMaintenance.GetEntityInfo(navEntity);
             var sqlObj = GetWhereSql(navObjectNameColumnInfo.Navigat.Name);
+            if (IsJsonMapping(navObjectNameColumnInfo, sqlObj))
+            {
+                CreateDynamicMappingExpression(sqlObj, navObjectNameColumnInfo.Navigat.Name, navEntityInfo, listItemEntity);
+            }
             Check.ExceptionEasy(sqlObj.MappingExpressions.IsNullOrEmpty(), $"{expression} error,dynamic need MappingField ,Demo: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())", $"{expression} 解析出错,自定义映射需要 MappingField ,例子: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())");
             if (list.Any() && navObjectNamePropety.GetValue(list.First()) == null)
             {
@@ -530,6 +534,10 @@ private void DynamicOneToOne(List<object> list, Func<ISugarQueryable<object>, Li
             var navEntityInfo = this.Context.EntityMaintenance.GetEntityInfo(navEntity);
             this.Context.InitMappingInfo(navEntity);
             var sqlObj = GetWhereSql(navObjectNameColumnInfo.Navigat.Name);
+            if (IsJsonMapping(navObjectNameColumnInfo, sqlObj))
+            {
+                CreateDynamicMappingExpression(sqlObj, navObjectNameColumnInfo.Navigat.Name, navEntityInfo, listItemEntity);
+            }
             Check.ExceptionEasy(sqlObj.MappingExpressions.IsNullOrEmpty(), $"{expression} error，dynamic need MappingField ,Demo: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())", $"{expression}解析出错， 自定义映射需要 MappingField ,例子: Includes(it => it.Books.MappingField(z=>z.studenId,()=>it.StudentId).ToList())");
             if (list.Any() && navObjectNamePropety.GetValue(list.First()) == null)
             {
@@ -846,5 +854,31 @@ private bool IsEnumNumber(EntityColumnInfo navPkColumn)
                 navPkColumn?.SqlParameterDbType == null &&
                 this.Context?.CurrentConnectionConfig?.MoreSettings?.TableEnumIsString != true;
         }
+
+        private static bool IsJsonMapping(EntityColumnInfo navObjectNameColumnInfo, SqlInfo sqlObj)
+        {
+            return sqlObj.MappingExpressions == null && navObjectNameColumnInfo.Navigat.Name.HasValue();
+        }
+
+        private void CreateDynamicMappingExpression(SqlInfo sqlObj, string name, EntityInfo navEntityInfo, EntityInfo listItemEntity)
+        {
+            var json = Newtonsoft.Json.Linq.JArray.Parse(name);
+            sqlObj.MappingExpressions = new List<MappingFieldsExpression>();
+            foreach (var item in json)
+            {
+                 string m =  item["m"]+"";
+                 string c = item["c"] + "";
+                 Check.ExceptionEasy(m.IsNullOrEmpty() || c.IsNullOrEmpty(), $"{name} Navigation json format error, see documentation", $"{name}导航json格式错误,请看文档");
+                var cColumn= navEntityInfo.Columns.FirstOrDefault(it => it.PropertyName.EqualCase(c));
+                Check.ExceptionEasy(cColumn==null, $"{c} does not exist in {navEntityInfo.EntityName}", $"{c}不存在于{navEntityInfo.EntityName}");
+                var mColumn = listItemEntity.Columns.FirstOrDefault(it => it.PropertyName.EqualCase(m));
+                Check.ExceptionEasy(cColumn == null, $"{m} does not exist in {listItemEntity.EntityName}", $"{m}不存在于{listItemEntity.EntityName}");
+                sqlObj.MappingExpressions.Add(new MappingFieldsExpression() { 
+
+                      LeftEntityColumn = cColumn,
+                     RightEntityColumn = mColumn,
+                });
+            }
+        }
     }
 }
diff --git a/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs b/Src/Asp.Net/SqlSugar/Abstract/QueryableProvider/QueryableProvider.cs
@@ -8,7 +8,7 @@
 using System.Text.RegularExpressions;
 using System.Reflection;
 using System.Dynamic;
-using System.Threading.Tasks;
+using System.Threading.Tasks; 
 
 namespace SqlSugar
 {
@@ -1339,6 +1339,15 @@ public virtual ISugarQueryable<TResult> Select<TResult>(Expression expression)
             }
             return _Select<TResult>(expression);
         }
+        public ISugarQueryable<TResult> Select<TResult>(string expShortName, FormattableString expSelect, Type propertyType) 
+        {
+            var exp = DynamicCoreHelper.GetMember(typeof(TResult),propertyType, expShortName, expSelect);
+            return _Select<TResult>(exp); 
+        }
+        public ISugarQueryable<T> Select(string expShortName, FormattableString expSelect,Type propertyType) 
+        {
+            return Select<T>(expShortName, expSelect, propertyType);
+        }
         public virtual ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression)
         {
             if (IsAppendNavColumns())

diff --git a/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs b/Src/Asp.Net/SqlSugar/Interface/IQueryable.cs
@@ -151,6 +151,8 @@ public partial interface ISugarQueryable<T>
         Task<bool> AnyAsync(Expression<Func<T, bool>> expression, CancellationToken token);
         bool Any();
         Task<bool> AnyAsync();
+        ISugarQueryable<TResult> Select<TResult>(string expShortName, FormattableString expSelect, Type propertyType);
+        ISugarQueryable<T> Select(string expShortName, FormattableString expSelect, Type propertyType);
         ISugarQueryable<TResult> Select<TResult>(Expression expression);
         ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression);
         ISugarQueryable<TResult> Select<TResult>(Expression<Func<T, TResult>> expression,bool isAutoFill);

diff --git a/Src/Asp.Net/SqlSugar/Json2Sql/DynamicLinq/DynamicCoreHelper.cs b/Src/Asp.Net/SqlSugar/Json2Sql/DynamicLinq/DynamicCoreHelper.cs
@@ -32,6 +32,26 @@ public static LambdaExpression GetWhere(Type entityType, string shortName, Forma
 
             return lambda;
         }
+        public static LambdaExpression GetMember(Type entityType,Type propertyType, string shortName, FormattableString memberSql)
+        {
+            var parameter = Expression.Parameter(entityType, "it");
+
+            // 提取 FormattableString 中的参数值
+            var arguments = memberSql.GetArguments();
+
+
+            var sql = ReplaceFormatParameters(memberSql.Format);
+
+            // 构建动态表达式，使用常量表达式和 whereSql 中的参数值
+            var lambda = SqlSugarDynamicExpressionParser.ParseLambda(
+                new[] { parameter },
+                propertyType,
+               sql,
+               memberSql.GetArguments()
+            );
+
+            return lambda;
+        }
         private static string ReplaceFormatParameters(string format)
         {
             int parameterIndex = 0; // 起始参数索引