- new jd order handle ok, access jd api synchronously.

compat/corm/corm.go

@@ -0,0 +1,5 @@
+package corm
+
+type DBErrorChecker interface {
+	ErrorIsDuplicate(error) bool
+}

compat/corm/corm_mysql.go

@@ -0,0 +1,17 @@
+package corm
+
+import (
+	"github.com/go-sql-driver/mysql"
+)
+
+type MysqlErrorChecker struct {
+}
+
+func (c MysqlErrorChecker) ErrorIsDuplicate(err error) bool {
+	if err == nil {
+		return false
+	}
+
+	realErr := err.(*mysql.MySQLError)
+	return realErr.Number == 1062
+}