Add exclusion in tag search
* Searching '-mytag' will now exlude all shaares with 'mytag' tag. * All tags starting with a '-' are renamed without it (through the Updater). * Unit tests. Minor code changes: * LinkDB->filter() can now take no parameters (get all link depending on logged status). * tagsStrToArray() is now static and filters blank tags.
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7 changed files with 77 additions and 12 deletions
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@ -340,7 +340,7 @@ public function getLinkFromUrl($url)
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*
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* @return array filtered links
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*/
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public function filter($type, $request, $casesensitive = false, $privateonly = false)
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public function filter($type = '', $request = '', $casesensitive = false, $privateonly = false)
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{
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$linkFilter = new LinkFilter($this->_links);
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$requestFilter = is_array($request) ? implode(' ', $request) : $request;
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@ -209,19 +209,33 @@ private function filterFulltext($searchterms, $privateonly = false)
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*/
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public function filterTags($tags, $casesensitive = false, $privateonly = false)
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{
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$searchtags = $this->tagsStrToArray($tags, $casesensitive);
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$searchtags = self::tagsStrToArray($tags, $casesensitive);
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$filtered = array();
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if (empty($searchtags)) {
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return $filtered;
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}
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foreach ($this->links as $l) {
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foreach ($this->links as $link) {
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// ignore non private links when 'privatonly' is on.
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if (! $l['private'] && $privateonly === true) {
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if (! $link['private'] && $privateonly === true) {
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continue;
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}
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$linktags = $this->tagsStrToArray($l['tags'], $casesensitive);
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$linktags = self::tagsStrToArray($link['tags'], $casesensitive);
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if (count(array_intersect($linktags, $searchtags)) == count($searchtags)) {
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$filtered[$l['linkdate']] = $l;
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$found = true;
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for ($i = 0 ; $i < count($searchtags) && $found; $i++) {
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// Exclusive search, quit if tag found.
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// Or, tag not found in the link, quit.
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if (($searchtags[$i][0] == '-' && in_array(substr($searchtags[$i], 1), $linktags))
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|| ($searchtags[$i][0] != '-') && ! in_array($searchtags[$i], $linktags)
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) {
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$found = false;
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}
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}
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if ($found) {
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$filtered[$link['linkdate']] = $link;
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}
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}
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krsort($filtered);
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@ -266,12 +280,12 @@ public function filterDay($day)
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*
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* @return array filtered tags string.
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*/
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public function tagsStrToArray($tags, $casesensitive)
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public static function tagsStrToArray($tags, $casesensitive)
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{
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// We use UTF-8 conversion to handle various graphemes (i.e. cyrillic, or greek)
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$tagsOut = $casesensitive ? $tags : mb_convert_case($tags, MB_CASE_LOWER, 'UTF-8');
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$tagsOut = str_replace(',', ' ', $tagsOut);
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return explode(' ', trim($tagsOut));
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return array_filter(explode(' ', trim($tagsOut)), 'strlen');
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}
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}
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@ -131,6 +131,21 @@ public function updateMethodMergeDeprecatedConfigFile()
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return true;
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}
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/**
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* Rename tags starting with a '-' to work with tag exclusion search.
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*/
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public function updateMethodRenameDashTags()
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{
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$linklist = $this->linkDB->filter();
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foreach ($linklist as $link) {
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$link['tags'] = preg_replace('/(^| )\-/', '$1', $link['tags']);
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$link['tags'] = implode(' ', array_unique(LinkFilter::tagsStrToArray($link['tags'], true)));
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$this->linkDB[$link['linkdate']] = $link;
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}
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$this->linkDB->savedb($this->config['config']['PAGECACHE']);
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return true;
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}
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}
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/**
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@ -276,7 +276,8 @@ public function testAllTags()
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'media' => 1,
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'software' => 1,
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'stallman' => 1,
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'free' => 1
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'free' => 1,
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'-exclude' => 1,
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),
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self::$publicLinkDB->allTags()
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);
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@ -295,7 +296,8 @@ public function testAllTags()
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'html' => 1,
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'w3c' => 1,
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'css' => 1,
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'Mercurial' => 1
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'Mercurial' => 1,
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'-exclude' => 1,
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),
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self::$privateLinkDB->allTags()
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);
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@ -254,4 +254,20 @@ public function testFilterFullTextMixed()
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count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, 'free software'))
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);
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}
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/**
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* Tag search with exclusion.
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*/
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public function testTagFilterWithExclusion()
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{
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$this->assertEquals(
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1,
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count(self::$linkFilter->filter(LinkFilter::$FILTER_TAG, 'gnu -free'))
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);
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$this->assertEquals(
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5,
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count(self::$linkFilter->filter(LinkFilter::$FILTER_TAG, '-free'))
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);
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}
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}
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@ -13,6 +13,11 @@ class UpdaterTest extends PHPUnit_Framework_TestCase
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*/
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private static $configFields;
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/**
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* @var string Path to test datastore.
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*/
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protected static $testDatastore = 'sandbox/datastore.php';
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/**
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* Executed before each test.
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*/
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@ -31,6 +36,7 @@ public function setUp()
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'config' => array(
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'CONFIG_FILE' => 'tests/Updater/config.php',
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'DATADIR' => 'tests/Updater',
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'PAGECACHE' => 'sandbox/pagecache',
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'config1' => 'config1data',
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'config2' => 'config2data',
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)
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@ -224,4 +230,16 @@ public function testMergeDeprecatedConfigNoFile()
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include self::$configFields['config']['CONFIG_FILE'];
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$this->assertEquals(self::$configFields['login'], $GLOBALS['login']);
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}
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public function testRenameDashTags()
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{
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$refDB = new ReferenceLinkDB();
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$refDB->write(self::$testDatastore);
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$linkDB = new LinkDB(self::$testDatastore, true, false);
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$this->assertEmpty($linkDB->filter(LinkFilter::$FILTER_TAG, 'exclude'));
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$updater = new Updater(array(), self::$configFields, $linkDB, true);
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$updater->updateMethodRenameDashTags();
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var_dump($linkDB->filter(LinkFilter::$FILTER_TAG, 'exclude'));
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$this->assertNotEmpty($linkDB->filter(LinkFilter::$FILTER_TAG, 'exclude'));
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}
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}
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@ -19,7 +19,7 @@ function __construct()
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'Richard Stallman and the Free Software Revolution',
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0,
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'20150310_114633',
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'free gnu software stallman'
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'free gnu software stallman -exclude'
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);
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$this->addLink(
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