/**
* Returns the items in the first array that aren't in the second array. Arrays
* are recursively compared. If a value in the array is set by a String key, then
* that same key is checked in array2, otherwise, the existance of the value
* in array2 is checked.
* @param array $array1
* @param array $array2
* @return array
*/
function array_diff_semi_assoc_recursive($array1, $array2)
{
$difference = array();
foreach ($array1 as $key => $value) {
if (is_array($value)) {
if (!isset($array2[$key])) {
$difference[$key] = $value;
} elseif (!is_array($array2[$key])) {
$new_diff = array_diff_semi_assoc_recursive($value, (array) $array2[$key]);
if (!empty($new_diff)) {
$difference[$key] = $new_diff;
}
} else {
$new_diff = array_diff_semi_assoc_recursive($value, $array2[$key]);
if (!empty($new_diff)) {
$difference[$key] = $new_diff;
}
}
} else {
if (is_string($key) && (!array_key_exists($key, $array2) || $array2[$key] != $value)) {
if (!(isset($array2[$key]) && is_array($array2[$key]) && in_array($value, $array2[$key]))) {
$difference[$key] = $value;
}
} elseif (is_int($key) && !in_array($value, $array2)) {
$difference[] = $value;
}
}
}
return $difference;
}
public function itemHTML($item, $classes)
{
//set empty values to false so they will be removed from the built querystring
$item->value = array_map(function ($value) {
if (empty($value)) {
$value = false;
}
return $value;
}, $item->value);
if ($item->selected) {
$qs = http_build_query(array_diff_semi_assoc_recursive($this->form->getStateVars(), $item->value));
$opt_url = $this->form->getSearchBaseURL() . (strlen($qs) ? '?' . $qs : '');
} else {
$qs = http_build_query(array_merge_recursive($this->form->getStateVars(), $item->value));
$opt_url = $this->form->getSearchBaseURL() . (strlen($qs) ? '?' . $qs : '');
}
return sprintf('<li class="%s"><a href="%s">%s</a></li>', implode(' ', $classes), esc_url($opt_url), esc_html($item->label));
}
/**
* Returns an array of selectable filter items
* @param Lift_WP_Query $lift_query
* @return array
*/
protected function getControlItems($lift_query)
{
$facets = $lift_query->get_facets();
if (empty($facets[$this->field->getName()])) {
return array();
}
$my_facets = $facets[$this->field->getName()];
$items = array();
$selectedFound = false;
$current_request = $this->field->bqToRequest($this->field->wpToBooleanQuery($lift_query->wp_query->query_vars));
//$current_request = array_map( 'arrayify', $current_request );
foreach ($my_facets as $bq_value => $count) {
$facet_request_vars = $this->field->bqToRequest($this->field->getName() . ':' . $bq_value);
$facet_wp_vars = $this->field->requestToWP($facet_request_vars);
//determine if this item is selected by comparing the relative request vars to this query
//we're assuming that these don't go further than 1 level deep
$selected = 0 === count(array_diff_semi_assoc_recursive($facet_request_vars, $current_request));
if ($selected) {
$selectedFound = true;
}
$label = $this->field->wpToLabel($facet_wp_vars);
if ($count) {
$label = sprintf('%1$s (%2$d)', $label, $count);
}
$item = (object) array('selected' => $selected, 'value' => $facet_request_vars, 'label' => $label);
$items[] = $item;
}
if (!$selectedFound) {
$selectedBq = $this->field->wpToBooleanQuery($lift_query->wp_query->query_vars);
if ($selectedBq) {
$items[] = (object) array('selected' => true, 'value' => $this->field->bqToRequest($selectedBq), 'label' => sprintf('%1$s (%2$d)', $this->field->wpToLabel($lift_query->wp_query->query_vars), $lift_query->wp_query->found_posts));
}
}
return $items;
}
