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Add getTagsForObjects in ITags 

Returns the list of tags that are set on the given object ids.
This commit is contained in:
Vincent Petry 2014-11-24 21:51:45 +01:00
parent 6fb2477fb7
commit cae600722e
3 changed files with 89 additions and 1 deletions
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42
lib/private/tags.php
View File

@ -199,6 +199,48 @@ class Tags implements \OCP\ITags {
);
}
/**
* Get the list of tags for the given ids.
*
* @param array $objIds array of object ids
* @return array|boolean of tags id as key to array of tag names
* or false if an error occurred
*/
public function getTagsForObjects(array $objIds) {
$entries = array();
try {
$conn = \OC_DB::getConnection();
$chunks = array_chunk($objIds, 1000, false);
foreach ($chunks as $chunk) {
$result = $conn->executeQuery(
'SELECT `category`, `categoryid`, `objid` ' .
'FROM `' . self::RELATION_TABLE . '` r, `' . self::TAG_TABLE . '` ' .
'WHERE `categoryid` = `id` AND `uid` = ? AND r.`type` = ? AND `objid` IN (?)',
array($this->user, $this->type, $chunk),
array(null, null, \Doctrine\DBAL\Connection::PARAM_INT_ARRAY)
);
while ($row = $result->fetch()) {
$objId = (int)$row['objid'];
if (!isset($entries[$objId])) {
$entry = $entries[$objId] = array();
}
$entry = $entries[$objId][] = $row['category'];
}
}
if (\OCP\DB::isError($result)) {
\OCP\Util::writeLog('core', __METHOD__. 'DB error: ' . \OCP\DB::getErrorMessage($result), \OCP\Util::ERROR);
return false;
}
} catch(\Exception $e) {
\OCP\Util::writeLog('core', __METHOD__.', exception: '.$e->getMessage(),
\OCP\Util::ERROR);
return false;
}
return $entries;
}
/**
* Get the a list if items tagged with $tag.
*

18
lib/public/itags.php
View File

@ -76,7 +76,23 @@ interface ITags {
public function getTags();
/**
* Get the a list if items tagged with $tag.
* Get a list of tags for the given item ids.
*
* This returns an array with object id / tag names:
* [
* 1 => array('First tag', 'Second tag'),
* 2 => array('Second tag'),
* 3 => array('Second tag', 'Third tag'),
* ]
*
* @param array $objIds item ids
* @return array|boolean with object id as key and an array
* of tag names as value or false if an error occurred
*/
public function getTagsForObjects(array $objIds);
/**
* Get a list of items tagged with $tag.
*
* Throws an exception if the tag could not be found.
*

30
tests/lib/tags.php
View File

@ -132,6 +132,36 @@ class Test_Tags extends \Test\TestCase {
$this->assertFalse($tagger->isEmpty());
}
public function testGetTagsForObjects() {
$defaultTags = array('Friends', 'Family', 'Work', 'Other');
$tagger = $this->tagMgr->load($this->objectType, $defaultTags);
$tagger->tagAs(1, 'Friends');
$tagger->tagAs(1, 'Other');
$tagger->tagAs(2, 'Family');
$tags = $tagger->getTagsForObjects(array(1));
$this->assertEquals(1, count($tags));
$tags = current($tags);
sort($tags);
$this->assertSame(array('Friends', 'Other'), $tags);
$tags = $tagger->getTagsForObjects(array(1, 2));
$this->assertEquals(2, count($tags));
$tags1 = $tags[1];
sort($tags1);
$this->assertSame(array('Friends', 'Other'), $tags1);
$this->assertSame(array('Family'), $tags[2]);
$this->assertEquals(
array(),
$tagger->getTagsForObjects(array(4))
);
$this->assertEquals(
array(),
$tagger->getTagsForObjects(array(4, 5))
);
}
public function testdeleteTags() {
$defaultTags = array('Friends', 'Family', 'Work', 'Other');
$tagger = $this->tagMgr->load($this->objectType, $defaultTags);