Add JoinString Demo

SqlServerTest/Demos/JoinSql.cs

@@ -0,0 +1,36 @@
+using OrmTest.Demo;
+using OrmTest.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OrmTest.Demo
+{
+    /// <summary>
+    /// Secure string operations
+    /// </summary>
+    public class JoinSql : DemoBase
+    {
+        public static void Init()
+        {
+            var db = GetInstance();
+            //propertyName is valid
+            string propertyName = "Id";
+            string dbColumnName = db.EntityProvider.GetDbColumnName<Student>(propertyName);
+            var list = db.Queryable<Student>().OrderBy(dbColumnName).ToList();
+
+            //propertyName is invalid
+            try
+            {
+                propertyName = "Id'";
+                dbColumnName = db.EntityProvider.GetDbColumnName<Student>(propertyName);
+                var list2 = db.Queryable<Student>().OrderBy(dbColumnName).ToList();
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine(ex.Message);
+            }
+        }
+    }
+}

SqlServerTest/Program.cs

@@ -39,6 +39,7 @@ namespace OrmTest
             OrmTest.Demo.Delete.Init();
             OrmTest.Demo.Update.Init();
             OrmTest.Demo.DbFirst.Init();
+            OrmTest.Demo.JoinSql.Init();
         }
     }
 }

SqlServerTest/SqlServerTest.csproj

@@ -48,6 +48,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Config.cs" />
+    <Compile Include="Demos\JoinSql.cs" />
     <Compile Include="Demos\DbFirst.cs" />
     <Compile Include="Demos\Delete.cs" />
     <Compile Include="Demos\DemoBase.cs" />

SqlSugar/Abstract/DeleteProvider/DeleteableProvider.cs

@@ -57,7 +57,7 @@ namespace SqlSugar
                 var primaryField = primaryFields.Single();
                 foreach (var deleteObj in deleteObjs)
                 {
-                    var entityPropertyName = this.Context.EntityProvider.GetEntityPropertyName<T>(primaryField);
+                    var entityPropertyName = this.Context.EntityProvider.GetPropertyName<T>(primaryField);
                     var columnInfo = EntityInfo.Columns.Single(it => it.PropertyName == entityPropertyName);
                     var value = columnInfo.PropertyInfo.GetValue(deleteObj, null);
                     primaryKeyValues.Add(value);
@@ -82,7 +82,7 @@ namespace SqlSugar
                     {
                         if (i == 0)
                             andString.Append(DeleteBuilder.WhereInAndTemplate + PubConst.Space);
-                        var entityPropertyName = this.Context.EntityProvider.GetEntityPropertyName<T>(primaryField);
+                        var entityPropertyName = this.Context.EntityProvider.GetPropertyName<T>(primaryField);
                         var columnInfo = EntityInfo.Columns.Single(it => it.PropertyName == entityPropertyName);
                         var entityValue = columnInfo.PropertyInfo.GetValue(deleteObj, null);
                         andString.AppendFormat(DeleteBuilder.WhereInEqualTemplate, primaryField, entityValue);

SqlSugar/Abstract/EntityProvider/EntityProvider.cs

@@ -58,17 +58,19 @@ namespace SqlSugar
                 return mappingInfo == null ? tableName : mappingInfo.EntityName;
             }
         }
-        public string GetDbColumnName<T>(string entityPropertyName)
+        public string GetDbColumnName<T>(string propertyName)
         {
+            var isAny=this.GetEntityInfo<T>().Columns.Any(it => it.PropertyName.Equals(propertyName, StringComparison.CurrentCultureIgnoreCase));
+            Check.Exception(!isAny, "Property " + propertyName + " is Invalid");
             var typeName = typeof(T).Name;
-            if (this.Context.MappingColumns == null || this.Context.MappingColumns.Count == 0) return entityPropertyName;
+            if (this.Context.MappingColumns == null || this.Context.MappingColumns.Count == 0) return propertyName;
             else
             {
-                var mappingInfo = this.Context.MappingColumns.SingleOrDefault(it => it.EntityName == typeName && it.PropertyName == entityPropertyName);
+                var mappingInfo = this.Context.MappingColumns.SingleOrDefault(it => it.EntityName == typeName && it.PropertyName == propertyName);
-                return mappingInfo == null ? entityPropertyName : mappingInfo.DbColumnName;
+                return mappingInfo == null ? propertyName : mappingInfo.DbColumnName;
             }
         }
-        public string GetEntityPropertyName<T>(string dbColumnName)
+        public string GetPropertyName<T>(string dbColumnName)
         {
             var typeName = typeof(T).Name;
             if (this.Context.MappingColumns == null || this.Context.MappingColumns.Count == 0) return dbColumnName;