- // FIXME: explode(' ',$searchterms) and perform a AND search.
- // FIXME: accept double-quotes to search for a string "as is"?
- $filtered = array();
- $search = mb_convert_case($searchterms, MB_CASE_LOWER, 'UTF-8');
- $keys = array('title', 'description', 'url', 'tags');
-
- foreach ($this->_links as $link) {
- $found = false;
-
- foreach ($keys as $key) {
- if (strpos(mb_convert_case($link[$key], MB_CASE_LOWER, 'UTF-8'),
- $search) !== false) {
- $found = true;
- }
- }
-
- if ($found) {
- $filtered[$link['linkdate']] = $link;
- }
- }
- krsort($filtered);
- return $filtered;
- }
-
- /**
- * Returns the list of links associated with a given list of tags
- *
- * You can specify one or more tags, separated by space or a comma, e.g.
- * print_r($mydb->filterTags('linux programming'));
- */
- public function filterTags($tags, $casesensitive=false)
- {
- // Same as above, we use UTF-8 conversion to handle various graphemes (i.e. cyrillic, or greek)
- // FIXME: is $casesensitive ever true?
- $t = str_replace(
- ',', ' ',
- ($casesensitive ? $tags : mb_convert_case($tags, MB_CASE_LOWER, 'UTF-8'))
- );
-
- $searchtags = explode(' ', $t);
- $filtered = array();
-
- foreach ($this->_links as $l) {
- $linktags = explode(
- ' ',
- ($casesensitive ? $l['tags']:mb_convert_case($l['tags'], MB_CASE_LOWER, 'UTF-8'))
- );
-
- if (count(array_intersect($linktags, $searchtags)) == count($searchtags)) {
- $filtered[$l['linkdate']] = $l;
- }
- }
- krsort($filtered);
- return $filtered;
- }
-
-
- /**
- * Returns the list of articles for a given day, chronologically sorted
- *
- * Day must be in the form 'YYYYMMDD' (e.g. '20120125'), e.g.
- * print_r($mydb->filterDay('20120125'));
- */
- public function filterDay($day)
- {
- if (! checkDateFormat('Ymd', $day)) {
- throw new Exception('Invalid date format');
- }
-
- $filtered = array();
- foreach ($this->_links as $l) {
- if (startsWith($l['linkdate'], $day)) {
- $filtered[$l['linkdate']] = $l;
- }
- }
- ksort($filtered);
- return $filtered;
- }
-
- /**
- * Returns the article corresponding to a smallHash
- */
- public function filterSmallHash($smallHash)
- {
- $filtered = array();
- foreach ($this->_links as $l) {
- if ($smallHash == smallHash($l['linkdate'])) {
- // Yes, this is ugly and slow
- $filtered[$l['linkdate']] = $l;
- return $filtered;
- }
- }
- return $filtered;