$custom_filters_runeupgrade $custom_filters_runeupgrade : array<mixed,\Filter> Type array<mixed,\Filter> — Custom filters for thie rune upgrade form.
__construct() __construct(resource $db) Constructor. Retrieves the data and initializes the variables. Parameters resource $db Connection to the database.
parse_filters() parse_filters() Parses the request looking for the selected filters, validates them and adds them to the $filters array. Must be overriden in the page classes.