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补充 表达式解析 Equals 为 = #28

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2881099
2019-04-05 00:16:35 +08:00
parent 8b49dd8f83
commit b1578f8cdc
7 changed files with 66 additions and 2 deletions
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12
FreeSql/Internal/CommonExpression.cs
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@ -306,6 +306,18 @@ namespace FreeSql.Internal {
return $"case when {ExpressionLambdaToSql(condExp.Test, _tables, _selectColumnMap, getSelectGroupingMapString, tbtype, isQuoteName, isDisableDiyParse, style)} then {ExpressionLambdaToSql(condExp.IfTrue, _tables, _selectColumnMap, getSelectGroupingMapString, tbtype, isQuoteName, isDisableDiyParse, style)} else {ExpressionLambdaToSql(condExp.IfFalse, _tables, _selectColumnMap, getSelectGroupingMapString, tbtype, isQuoteName, isDisableDiyParse, style)} end";
case ExpressionType.Call:
var exp3 = exp as MethodCallExpression;
if (exp3.Method.Name == "Equals" && exp3.Object != null && exp3.Arguments.Count > 0) {
var tmptryoper = "=";
var tmpleft = ExpressionLambdaToSql(exp3.Object, _tables, _selectColumnMap, getSelectGroupingMapString, tbtype, isQuoteName, isDisableDiyParse, style);
var tmpright = ExpressionLambdaToSql(exp3.Arguments[0], _tables, _selectColumnMap, getSelectGroupingMapString, tbtype, isQuoteName, isDisableDiyParse, style);
if (tmpleft == "NULL") {
var tmp33 = tmpright;
tmpright = tmpleft;
tmpleft = tmp33;
}
if (tmpright == "NULL") tmptryoper = " IS ";
return $"{tmpleft}{tmptryoper}{tmpright}";
}
var callType = exp3.Object?.Type ?? exp3.Method.DeclaringType;
switch (callType.FullName) {
case "System.String": return ExpressionLambdaToSqlCallString(exp3, _tables, _selectColumnMap, getSelectGroupingMapString, tbtype, isQuoteName, isDisableDiyParse, style);