add exec

models/common/size.go

@@ -32,3 +32,8 @@ const (
 	MEMORY
 	HARDWARE
 )
+
+// String() - Returns the string representation of the storage type
+func (t StorageType) String() string {
+	return [...]string{"FILE", "STREAM", "API", "DATABASE", "S3", "MEMORY", "HARDWARE"}[t]
+}