function views_handler_filter_in_operator::reduce_value_options

When using exposed filters, we may be required to reduce the set.

File

handlers/views_handler_filter_in_operator.inc, line 236

Class

views_handler_filter_in_operator

Simple filter to handle matching of multiple options selectable via checkboxes

Code

function reduce_value_options($input = NULL) {
    if (!isset($input)) {
        $input = $this->value_options;
    }
    // Because options may be an array of strings, or an array of mixed arrays
    // and strings (optgroups) or an array of objects, we have to
    // step through and handle each one individually.
    $options = array();
    foreach ($input as $id => $option) {
        if (is_array($option)) {
            $options[$id] = $this->reduce_value_options($option);
            continue;
        }
        else {
            if (is_object($option)) {
                $keys = array_keys($option->option);
                $key = array_shift($keys);
                if (isset($this->options['value'][$key])) {
                    $options[$id] = $option;
                }
            }
            else {
                if (isset($this->options['value'][$id])) {
                    $options[$id] = $option;
                }
            }
        }
    }
    return $options;
}