C# (CSharp) DbFluent.IsNull示例

示例#1

        public void TestInterprete_Fun_SqlIf()
        {
            string value   = null;
            string script1 = DbFluent.If(DbFluent.IsNull(value), DbFluent.Field("RegionalDirectorateId"), DbFluent.Field("RegionalDirectorateId2"));

            string expectedResult = @"case when (null is null) then ""RegionalDirectorateId"" else ""RegionalDirectorateId2"" end";

            var log = new BdoLog();

            var scriptVariableSet = new ScriptVariableSet();

            scriptVariableSet.SetValue(VarSetDb.__DbBuilder,
                                       DbQueryFactory.CreateQueryBuilder <DbQueryBuilder_PostgreSql>(GlobalVariables.AppHost));
            string result = GlobalVariables.AppHost.Scope.Interpreter.Evaluate(script1, DataExpressionKind.Script, scriptVariableSet, log: log)?.ToString();

            string xml = "";

            if (log.HasErrorsOrExceptions())
            {
                xml = ". Result was '" + log.ToXml();
            }
            Assert.That(result.Trim().Equals(expectedResult.Trim(), StringComparison.OrdinalIgnoreCase), "Bad script interpretation" + xml);
        }