/**
* Modifies the search form by providing an additional marker linking to a
* new query with the suggestions provided by Solr as the search terms.
*
* @param array An array of existing form markers
* @param tx_solr_Template An isntance of the tempalte engine
* @return array Array with additional markers for suggestions
*/
public function modifyForm(array $markers, tx_solr_Template $template)
{
$spellCheckingEnabled = $this->configuration['search.']['spellchecking'];
if ($spellCheckingEnabled && $this->search->hasSearched()) {
$suggestions = $this->search->getSpellcheckingSuggestions();
if ($suggestions) {
$query = clone $this->search->getQuery();
$query->setKeywords($suggestions['collation']);
$markers['suggestion'] = tslib_cObj::noTrimWrap($query->getQueryLink($query->getKeywords()), $this->configuration['search.']['spellchecking.']['wrap']);
}
}
return $markers;
}
/**
* Generates a link with spell checking suggestions if it is activated and
* spell checking suggestions are returned by Solr.
*
* @return string A link to start over with a new search using the suggested keywords.
*/
public function getSpellCheckingSuggestions()
{
$suggestionsLink = '';
if ($this->configuration['search.']['spellchecking'] && $this->search->hasSearched()) {
$suggestions = $this->getSuggestions();
if ($suggestions && !$suggestions['correctlySpelled'] && !empty($suggestions['collation'])) {
$suggestionsLink = tslib_cObj::noTrimWrap($this->getSuggestionQueryLink(), $this->configuration['search.']['spellchecking.']['wrap']);
}
}
return $suggestionsLink;
}
