Add ICustomConditionalFunc

Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs

@@ -129,7 +129,17 @@ namespace SqlSugar
                 if (model is ConditionalModel)
                 {
                     var item = model as ConditionalModel;
-                    if (item.FieldName == $"[value=sql{UtilConstants.ReplaceKey}]") 
+                    if (item.CustomConditionalFunc != null) 
+                    {
+                        var colIndex = mainIndex + beginIndex;
+                        var colType = colIndex == 0 ? "" : "AND";
+                        var custom = item.CustomConditionalFunc.GetConditionalSql(item, colIndex);
+                        parameters.AddRange(custom.Value);
+                        builder.AppendFormat(" "+colType + " "+custom.Key);
+                        mainIndex++;
+                        continue;
+                    }
+                    else if (item.FieldName == $"[value=sql{UtilConstants.ReplaceKey}]") 
                     {
                         builder.Append(item.FieldValue);
                         continue;

Src/Asp.Net/SqlSugar/Entities/ConditionalModel.cs

@@ -25,6 +25,14 @@ namespace SqlSugar
         public string FieldName { get; set; }
         public string FieldValue { get; set; }
         public string CSharpTypeName { get; set; }
+        
+
+        public ICustomConditionalFunc CustomConditionalFunc { get; set; }
+        public string CustomP1 { get; set; }
+        public string CustomP2 { get; set; }
+        public string CustomP3 { get; set; }
+        public string CustomP4 { get; set; }
+
         public ConditionalType ConditionalType { get; set; }
         [Newtonsoft.Json.JsonIgnoreAttribute]
         public Func<string,object> FieldValueConvertFunc { get; set; }

Src/Asp.Net/SqlSugar/Interface/ICustomConditionalFunc.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SqlSugar 
+{
+    public interface ICustomConditionalFunc
+    {
+        KeyValuePair<string, SugarParameter[]> GetConditionalSql(ConditionalModel  json,int index);
+    }
+}

Src/Asp.Net/SqlSugar/SqlSugar.csproj

@@ -138,6 +138,7 @@
     <Compile Include="ExpressionsToSql\Subquery\Items\SubSelectStringJoin.cs" />
     <Compile Include="ExpressionsToSql\Subquery\Items\SubWithNoLock.cs" />
     <Compile Include="ExpressionsToSql\Subquery\Items\SubEnableTableFilter.cs" />
+    <Compile Include="Interface\ICustomConditionalFunc.cs" />
     <Compile Include="Json2Sql\Entities\JsonDeleteResult.cs" />
     <Compile Include="Json2Sql\Entities\JsonInsertResult.cs" />
     <Compile Include="Json2Sql\Entities\JsonQueryResult.cs" />

Src/Asp.Net/SqlSugar/Utilities/DbExtensions.cs

@@ -79,6 +79,17 @@ namespace SqlSugar
             }
             return value;
         }
+        public static string ToCheckRegexW(this string value) 
+        {
+            if (Regex.IsMatch(value,@"^\w+$"))
+            {
+                return value;
+            }
+            else 
+            {
+                throw new Exception($"ToCheckRegexW {value} format error ");
+            }
+        }
         internal static string ToLower(this string value ,bool isAutoToLower)
         {
             if (value == null) return null;