Improved search: combine AND, exact terms and exclude search.
This commit is contained in:
ArthurHoaro
parent
07c2f73543
commit
bedd176a54
4 changed files with 83 additions and 29 deletions
|
|
@ -120,7 +120,9 @@ class LinkFilter
|
|||
*
|
||||
* Searches:
|
||||
* - in the URLs, title and description;
|
||||
* - are case-insensitive.
|
||||
* - are case-insensitive;
|
||||
* - terms surrounded by quotes " are exact terms search.
|
||||
* - terms starting with a dash - are excluded (except exact terms).
|
||||
*
|
||||
* Example:
|
||||
* print_r($mydb->filterFulltext('hollandais'));
|
||||
|
|
@ -137,18 +139,28 @@ class LinkFilter
|
|||
private function filterFulltext($searchterms, $privateonly = false)
|
||||
{
|
||||
$search = mb_convert_case(html_entity_decode($searchterms), MB_CASE_LOWER, 'UTF-8');
|
||||
$explodedSearch = explode(' ', trim($search));
|
||||
$keys = array('title', 'description', 'url', 'tags');
|
||||
$found = true;
|
||||
$searchExactPhrase = false;
|
||||
$exactRegex = '/"([^"]+)"/';
|
||||
// Retrieve exact search terms.
|
||||
preg_match_all($exactRegex, $search, $exactSearch);
|
||||
$exactSearch = array_values(array_filter($exactSearch[1]));
|
||||
|
||||
// Check if we're using double-quotes to search for the exact string
|
||||
if ($search[0] == '"' && $search[strlen($search) - 1] == '"') {
|
||||
$searchExactPhrase = true;
|
||||
|
||||
// Remove the double-quotes as they are not what we search for
|
||||
$search = substr($search, 1, -1);
|
||||
// Remove exact search terms to get AND terms search.
|
||||
$explodedSearchAnd = explode(' ', trim(preg_replace($exactRegex, '', $search)));
|
||||
$explodedSearchAnd = array_values(array_filter($explodedSearchAnd));
|
||||
|
||||
// Filter excluding terms and update andSearch.
|
||||
$excludeSearch = array();
|
||||
$andSearch = array();
|
||||
foreach ($explodedSearchAnd as $needle) {
|
||||
if ($needle[0] == '-' && strlen($needle) > 1) {
|
||||
$excludeSearch[] = substr($needle, 1);
|
||||
} else {
|
||||
$andSearch[] = $needle;
|
||||
}
|
||||
}
|
||||
|
||||
$keys = array('title', 'description', 'url', 'tags');
|
||||
|
||||
// Iterate over every stored link.
|
||||
foreach ($this->links as $link) {
|
||||
|
||||
|
|
@ -162,22 +174,22 @@ class LinkFilter
|
|||
// Be optimistic
|
||||
$found = true;
|
||||
|
||||
// FIXME: Find a better word for where you're searching in
|
||||
$haystack = mb_convert_case($link[$key], MB_CASE_LOWER, 'UTF-8');
|
||||
|
||||
// When searching for the phrase, check if it's in the haystack...
|
||||
if ( $searchExactPhrase && strpos($haystack, $search) !== false) {
|
||||
break;
|
||||
// First, we look for exact term search
|
||||
for ($i = 0; $i < count($exactSearch) && $found; $i++) {
|
||||
$found = strpos($haystack, $exactSearch[$i]) !== false;
|
||||
}
|
||||
else {
|
||||
// Iterate over keywords, if keyword is not found,
|
||||
// no need to check for the others. We want all or nothing.
|
||||
foreach($explodedSearch as $keyword) {
|
||||
if(strpos($haystack, $keyword) === false) {
|
||||
$found = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
// Iterate over keywords, if keyword is not found,
|
||||
// no need to check for the others. We want all or nothing.
|
||||
for ($i = 0; $i < count($andSearch) && $found; $i++) {
|
||||
$found = strpos($haystack, $andSearch[$i]) !== false;
|
||||
}
|
||||
|
||||
// Exclude terms.
|
||||
for ($i = 0; $i < count($excludeSearch) && $found; $i++) {
|
||||
$found = strpos($haystack, $excludeSearch[$i]) === false;
|
||||
}
|
||||
|
||||
// One of the fields of the link matches, no need to check the other.
|
||||
|
|
|
|||
|
|
@ -278,6 +278,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
|
|||
'stallman' => 1,
|
||||
'free' => 1,
|
||||
'-exclude' => 1,
|
||||
'stuff' => 2,
|
||||
),
|
||||
self::$publicLinkDB->allTags()
|
||||
);
|
||||
|
|
|
|||
|
|
@ -27,7 +27,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
|
|||
public function testFilter()
|
||||
{
|
||||
$this->assertEquals(
|
||||
6,
|
||||
7,
|
||||
count(self::$linkFilter->filter('', ''))
|
||||
);
|
||||
|
||||
|
|
@ -222,7 +222,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
|
|||
);
|
||||
|
||||
$this->assertEquals(
|
||||
2,
|
||||
3,
|
||||
count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '"free software"'))
|
||||
);
|
||||
}
|
||||
|
|
@ -250,11 +250,43 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
|
|||
public function testFilterFullTextMixed()
|
||||
{
|
||||
$this->assertEquals(
|
||||
2,
|
||||
3,
|
||||
count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, 'free software'))
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Full-text search - test exclusion with '-'.
|
||||
*/
|
||||
public function testExcludeSearch()
|
||||
{
|
||||
$this->assertEquals(
|
||||
1,
|
||||
count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, 'free -software'))
|
||||
);
|
||||
|
||||
$this->assertEquals(
|
||||
7,
|
||||
count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '-software'))
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Full-text search - test AND, exact terms and exclusion combined.
|
||||
*/
|
||||
public function testMultiSearch()
|
||||
{
|
||||
$this->assertEquals(
|
||||
2,
|
||||
count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '"Free Software " stallman "read this"'))
|
||||
);
|
||||
|
||||
$this->assertEquals(
|
||||
1,
|
||||
count(self::$linkFilter->filter(LinkFilter::$FILTER_TEXT, '"free software " stallman "read this" -beard'))
|
||||
);
|
||||
}
|
||||
|
||||
/**
|
||||
* Tag search with exclusion.
|
||||
*/
|
||||
|
|
@ -266,7 +298,7 @@ class LinkFilterTest extends PHPUnit_Framework_TestCase
|
|||
);
|
||||
|
||||
$this->assertEquals(
|
||||
5,
|
||||
6,
|
||||
count(self::$linkFilter->filter(LinkFilter::$FILTER_TAG, '-free'))
|
||||
);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -16,12 +16,21 @@ class ReferenceLinkDB
|
|||
$this->addLink(
|
||||
'Free as in Freedom 2.0',
|
||||
'https://static.fsf.org/nosvn/faif-2.0.pdf',
|
||||
'Richard Stallman and the Free Software Revolution',
|
||||
'Richard Stallman and the Free Software Revolution. Read this.',
|
||||
0,
|
||||
'20150310_114633',
|
||||
'free gnu software stallman -exclude'
|
||||
);
|
||||
|
||||
$this->addLink(
|
||||
'Note:',
|
||||
'local',
|
||||
'Stallman has a beard and is part of the Free Software Foundation (or not). Seriously, read this.',
|
||||
0,
|
||||
'20150310_114651',
|
||||
''
|
||||
);
|
||||
|
||||
$this->addLink(
|
||||
'MediaGoblin',
|
||||
'http://mediagoblin.org/',
|
||||
|
|
|
|||
Loading…
Reference in a new issue