/**
* Matches the given term against the indexed data in the Redis database.
*
* @param string $term
* @param array $options
* @return array
*/
public function matches($term, $options = array())
{
$words = array_filter(explode(' ', Str::normalize($term)), function ($w) {
return Str::size($w) >= $this->getMinComplete() && !in_array($w, $this->getStopWords());
});
sort($words);
if (empty($words)) {
return [];
}
$limit = isset($options['limit']) ? $options['limit'] : 5;
$cache = isset($options['cache']) ? $options['cache'] : true;
$cacheExpiry = isset($options['expiry']) ? $options['expiry'] : 600;
$cacheKey = $this->getCachePrefix() . ':' . implode('|', $words);
if (!$cache || !$this->redis()->exists($cacheKey) || $this->redis()->exists($cacheKey) == 0) {
$interKeys = array_map(function ($w) {
return "{$this->getIndexPrefix()}:{$w}";
}, $words);
$this->redis()->zinterstore($cacheKey, $interKeys);
$this->redis()->expire($cacheKey, $cacheExpiry);
}
$ids = $this->redis()->zrevrange($cacheKey, 0, $limit - 1);
if (count($ids) === 0) {
return [];
}
$results = $this->redis()->hmget($this->getDataPrefix(), $ids);
$results = array_filter($results, function ($res) {
return !is_null($res);
});
return array_map(function ($res) {
return json_decode($res, true);
}, $results);
}
public function testSize()
{
$this->assertEquals(9, Str::size('something'));
$this->assertEquals(9, Str::size('sómèthïng'));
$this->assertEquals(4, Str::size('测试中文'));
}