Returns the fields that are valid to be used in orderby clauses.
File: src/db-objects/element-choices/element-choice-query.php
Element_Choice_Query::parse_join()
Parses the SQL join value.
Element_Choice_Query::parse_where()
Parses the SQL where clause.
Element_Choice_Query
Class representing a query for element choices.
Element_Choice_Query::__construct()
Constructor.