/**
* Extract facets from the Solr response
*
* @param simplexml $xml solr response
* @return Facets, null if none
*/
protected function extractFacets($xml)
{
$facets = new Search\Facets();
$groups = $xml->xpath("//lst[@name='facet_fields']/lst");
if ($groups !== false && count($groups) > 0) {
foreach ($groups as $facet_group) {
// if only one entry, then all the results have this same facet,
// so no sense even showing this as a limit
$count = count($facet_group->int);
if ($count <= 1) {
continue;
}
$group_internal_name = (string) $facet_group["name"];
$group = new Search\FacetGroup();
$group->name = $group_internal_name;
$group->public = $this->config->getFacetPublicName($group_internal_name);
// put facets into an array
$facet_array = array();
foreach ($facet_group->int as $int) {
$facet_array[(string) $int["name"]] = (int) $int;
}
// date
$decade_display = array();
$is_date = $this->config->isDateType($group_internal_name);
if ($is_date == true) {
$date_arrays = $group->luceneDateToDecade($facet_array);
$decade_display = $date_arrays["display"];
$facet_array = $date_arrays["decades"];
}
foreach ($facet_array as $key => $value) {
$facet = new Search\Facet();
$facet->name = $key;
$facet->count = $value;
// dates are different
if ($is_date == true) {
$facet->name = $decade_display[$key];
$facet->is_date = true;
$facet->key = $key;
}
$group->addFacet($facet);
}
$facets->addGroup($group);
}
}
return $facets;
}
/**
* Parse facets out of the response
*
* @param DOMDocument $dom Primo XML
* @return Facets
*/
protected function extractFacets(\DOMDocument $dom)
{
$facets = new Search\Facets();
// echo $dom->saveXML();
$groups = $dom->getElementsByTagName("FACET");
if ($groups->length > 0) {
// we'll pass the facets into an array so we can control both which
// ones appear and in what order in the Xerxes config
$facet_group_array = array();
foreach ($groups as $facet_group) {
$facet_values = $facet_group->getElementsByTagName("FACET_VALUES");
// if only one entry, then all the results have this same facet,
// so no sense even showing this as a limit
if ($facet_values->length <= 1) {
continue;
}
$group_internal_name = $facet_group->getAttribute("NAME");
$facet_group_array[$group_internal_name] = $facet_values;
}
// now take the order of the facets as defined in xerxes config
foreach ($this->config->getFacets() as $group_internal_name => $facet_values) {
// we defined it, but it's not in the primo response
if (!array_key_exists($group_internal_name, $facet_group_array)) {
continue;
}
$group = new Search\FacetGroup();
$group->name = $group_internal_name;
$group->public = $this->config->getFacetPublicName($group_internal_name);
// get the actual facets out of the array above
$facet_values = $facet_group_array[$group_internal_name];
// and put them in their own array so we can mess with them
$facet_array = array();
foreach ($facet_values as $facet_value) {
$key = $facet_value->getAttribute("KEY");
$value = $facet_value->getAttribute("VALUE");
$facet_array[$key] = $value;
}
// date
$decade_display = array();
$is_date = $this->config->isDateType($group_internal_name);
if ($is_date == true) {
$date_arrays = $group->luceneDateToDecade($facet_array);
$decade_display = $date_arrays["display"];
$facet_array = $date_arrays["decades"];
} else {
// not a date, sort by hit count
arsort($facet_array);
}
// now make them into group facet objects
foreach ($facet_array as $key => $value) {
$public_value = $this->config->getValuePublicName($group_internal_name, $key);
$facet = new Search\Facet();
$facet->name = $public_value;
$facet->count = $value;
// dates are different
if ($is_date == true) {
$facet->name = $decade_display[$key];
$facet->is_date = true;
$facet->key = $key;
}
$group->addFacet($facet);
}
$facets->addGroup($group);
}
}
return $facets;
}
/**
* Parse facets out of the response
*
* @param DOMDocument $dom Primo XML
* @return Facets
*/
protected function extractFacets(\DOMDocument $dom)
{
$facets = new Search\Facets();
$id = $this->query->getHash();
// header("Content-type: text/plain"); print_r($this->query->getLimits());
// see if this is in the cache
$xml = $this->cache->get($id);
if ($xml == "") {
$this->cache->set($id, $dom->saveXML());
} else {
$dom = new \DOMDocument();
$dom->loadXML($xml);
}
$groups = $dom->getElementsByTagName("FACET");
// otherwise, grab the response
if ($groups->length > 0) {
// we'll pass the facets into an array so we can control both which
// ones appear and in what order in the Xerxes config
$facet_group_array = array();
foreach ($groups as $facet_group) {
$facet_values = $facet_group->getElementsByTagName("FACET_VALUES");
// if only one entry, then all the results have this same facet,
// so no sense even showing this as a limit
if ($facet_values->length <= 1) {
continue;
}
$group_internal_name = $facet_group->getAttribute("NAME");
$facet_group_array[$group_internal_name] = $facet_values;
}
// now take the order of the facets as defined in xerxes config
foreach ($this->config->getFacets() as $group_internal_name => $facet_values) {
// we defined it, but it's not in the primo response
if (!array_key_exists($group_internal_name, $facet_group_array)) {
continue;
}
$group = new Search\FacetGroup();
$group->name = $group_internal_name;
// get the actual facets out of the array above
$facet_values = $facet_group_array[$group_internal_name];
// and put them in their own array so we can mess with them
$facet_array = array();
foreach ($facet_values as $facet_value) {
$key = $facet_value->getAttribute("KEY");
$value = $facet_value->getAttribute("VALUE");
$facet_array[$key] = $value;
}
// date
$decade_display = array();
$is_date = $this->config->isDateType($group_internal_name);
if ($is_date == true) {
$date_arrays = $group->luceneDateToDecade($facet_array);
$decade_display = $date_arrays["display"];
$facet_array = $date_arrays["decades"];
} elseif ($group->name != "tlevel") {
// not a date, sort by hit count
arsort($facet_array);
}
// now make them into group facet objects
foreach ($facet_array as $key => $value) {
$facet = new Search\Facet();
$facet->count = $value;
$facet->name = $key;
if ($group->name == "tlevel" || $group->name == "pfilter") {
$facet->name = str_replace('_', ' ', $facet->name);
$facet->name = ucwords($facet->name);
}
// is this an excluded facet?
foreach ($this->query->getLimits() as $limit) {
if ($limit->field == $group->name && $limit->value == $key && $limit->boolean == "NOT") {
$facet->is_excluded = 1;
}
}
// dates are different
if ($is_date == true) {
$facet->name = $decade_display[$key];
$facet->is_date = true;
$facet->key = $key;
}
$group->addFacet($facet);
}
$facets->addGroup($group);
}
}
return $facets;
}
