add ExpressionCall tests #269

FreeSql.Tests/FreeSql.Tests/Issues/269.cs

@@ -0,0 +1,67 @@
+using FreeSql.DataAnnotations;
+using FreeSql;
+using System;
+using System.Collections.Generic;
+using Xunit;
+using System.Linq;
+using Newtonsoft.Json.Linq;
+using NpgsqlTypes;
+using Npgsql.LegacyPostgis;
+using System.Linq.Expressions;
+using System.Threading.Tasks;
+using System.ComponentModel.DataAnnotations;
+using System.Threading;
+using System.Data.SqlClient;
+using kwlib;
+using System.Diagnostics;
+using System.IO;
+using System.Text;
+
+namespace FreeSql.Tests.Issues
+{
+    public class _269
+    {
+        [Fact]
+        public void ToSql()
+        {
+            var fsql = g.sqlite;
+
+            var sql1 = fsql.Select<Edi>()
+                .Where(a =>
+                    DbFunc222.FuncExpression<EDIUseMode?, EDIUseMode, EDIUseMode>("ISNULL", a.UseMode, EDIUseMode.Both) == EDIUseMode.Both)
+                .ToSql(); //这么写报错：ExpressionTree 转换类型错误，值(a.[EDI_USE_MODE])，类型(System.String)，目标类型(System.Nullable`1[EDIUseMode])，Requested value 'a.[EDI_USE_MODE]' was not found.
+            var sql2 = fsql.Select<Edi>()
+                .Where(a =>
+                    DbFunc222.FuncExpression<int?, int, int>("ISNULL", (int)a.UseMode, (int)EDIUseMode.Both) == (int)EDIUseMode.Both)
+                .ToSql(); //这么写就不报错
+
+        }
+
+        public enum EDIUseMode : byte
+        {
+            OutPut = 1,
+            Import = 2,
+            Both = 3,
+        }
+        [Table(Name = "EDI222")]
+        public class Edi
+        {
+            [Column(Name = "EDI_ID")] public long Id { get; set; }
+            [Column(Name = "EDI_USE_MODE")] public EDIUseMode? UseMode { get; set; }
+        }
+    }
+
+    [ExpressionCall]
+    public static class DbFunc222
+    {
+        static ThreadLocal<ExpressionCallContext> context = new ThreadLocal<ExpressionCallContext>();
+        //自定义数据库方法
+        public static TOut FuncExpression<T1, T2, TOut>(string func, T1 p1, T2 p2)
+        {
+            var up = context.Value;
+            var values = up.ParsedContent.Values.ToArray();
+            context.Value.Result = $"{func}({values[1]}, {values[2]})";
+            return default;
+        }
+    }
+}