private function areIndexesDefined($file_id)
{
$index = new indexes($this->getDb());
$indexes = $index->select('*', 'WHERE file="' . $file_id . '"');
if (!isset($indexes[0]['id'])) {
return false;
} else {
return true;
}
}
public function base()
{
$results = array();
$query = isset($_GET['q']) ? $_GET['q'] : false;
$search = $query;
if ($query !== false) {
$stemmer = new PorterStemmer();
$index = new indexes($this->getDb());
$file = new files($this->getDb());
$scores = array();
$terms = explode(' ', $query);
$db_searches = new searches($this->getDb());
foreach ($terms as $term) {
if ($term != '') {
$old = $db_searches->select('*', 'WHERE term="' . $term . '"');
if (isset($old[0]['id'])) {
$db_searches->update(array('count' => ++$old[0]['count'], 'date' => time()), 'WHERE term="' . $term . '"');
} else {
$db_searches->insert(array('term' => $term, 'count' => 1, 'date' => time()));
}
}
}
$term_weight = 0.05;
$wpm_weight = 5;
//7
$count_weight = 150;
//135
$count = 0;
foreach ($terms as $term) {
$term = 'indx-' . $stemmer->Stem($term);
$data = $index->select('*', 'WHERE stem="' . $term . '" ORDER BY wpm DESC, count DESC LIMIT 0, 100');
foreach ($data as $file_data) {
$file_id = $file_data['file'];
$wpm = $file_data['wpm'];
$index_count = $file_data['count'];
$weight = $wpm * $wpm_weight * (1 - $term_weight * $count) + $index_count * $count_weight * (1 - $term_weight * $count);
if (isset($scores[$file_id])) {
$scores[$file_id] += $weight;
} else {
$scores[$file_id] = $weight;
}
}
$count++;
}
arsort($scores);
foreach ($scores as $key => $score) {
$results[$key] = array();
$results[$key]['score'] = $score;
}
$ids = array_keys($scores);
$files = array();
if (count($ids) > 0) {
$files = $file->select('*', 'WHERE id IN (' . implode(', ', $ids) . ')');
}
foreach ($files as $selected) {
$results[$selected['id']]['id'] = $selected['id'];
$results[$selected['id']]['name'] = $selected['name'];
$results[$selected['id']]['link'] = $selected['link'];
}
$this->set('results', $results);
} else {
$this->set('results', $results);
}
$this->set('search', $search);
$searches = new searches($this->getDb());
$this->set('popular', $searches->select('*', 'ORDER BY count DESC LIMIT 0, 10'));
}
