public ViewExecutable::addHandler($display_id, $type, $table, $field, $options = array(), $id = NULL)
Adds an instance of a handler to the view.
Items may be fields, filters, sort criteria, or arguments.
Parameters
string $display_id: The machine name of the display.
string $type: The type of handler being added.
string $table: The name of the table this handler is from.
string $field: The name of the field this handler is from.
array $options: (optional) Extra options for this instance. Defau