gorm 2 support in gollygorm2 package

gollygorm2/DbOpen.go

@@ -0,0 +1,33 @@
+package gollygorm2
+
+import (
+	"gorm.io/gorm"
+
+	"github.com/craigmj/golly"
+)
+
+// DbOpen is identical to golly.DbOpen, but returns a gorm database connection instead.
+func DbOpen(driverName, datasourceName string) (*gorm.DB, error) {
+	var db *gorm.DB
+	var err error
+	if err := golly.Run(func() error {
+		db, err = gorm.Open(driverName, datasourceName)
+		if nil != err {
+			if nil != golly.ErrorLog {
+				golly.ErrorLog(err)
+			}
+			return err
+		}
+		if err = db.DB().Ping(); nil != err {
+			db.Close()
+			if nil != err && nil != golly.ErrorLog {
+				golly.ErrorLog(err)
+			}
+			return err
+		}
+		return nil
+	}); nil != err {
+		return nil, err
+	}
+	return db, nil
+}