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<?php |
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/** |
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* Dataobject wraps EasyRdf resources and provides access to the data. |
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*/ |
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class DataObject |
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{ |
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/** |
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* Preferred order of properties, to be set by subclasses |
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*/ |
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protected $order; |
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/** |
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* Model instance which created this object |
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*/ |
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protected $model; |
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/** |
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* EasyRdf resource representing this object |
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*/ |
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protected $resource; |
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/** |
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* Initializes the DataObject |
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* @param Model $model |
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* @param EasyRdf\Resource $resource |
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* @throws Exception |
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*/ |
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public function __construct($model, $resource) |
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{ |
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if (!($model instanceof Model) || !($resource instanceof EasyRdf\Resource)) { |
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throw new InvalidArgumentException('Invalid constructor parameter given to DataObject.'); |
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} |
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$this->model = $model; |
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$this->resource = $resource; |
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$this->order = array(); |
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} |
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/** |
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* Generates and makes a query into a external vocabulary for an exact |
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* match for a particular concept. |
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* @param Vocabulary $exvoc external vocabulary to query |
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* @param string $exuri resource URI |
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* @param string $lang language of label to query for |
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* @return EasyRdf\Literal label, or null if not found in vocabulary |
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*/ |
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protected function getExternalLabel($exvoc, $exuri, $lang) |
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{ |
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if ($exvoc) { |
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try { |
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$exsparql = $exvoc->getSparql(); |
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$results = $exsparql->queryLabel($exuri, $lang); |
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return isset($results[$lang]) ? $results[$lang] : null; |
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} catch (EasyRdf\Http\Exception | EasyRdf\Exception | Throwable $e) { |
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if ($this->model->getConfig()->getLogCaughtExceptions()) { |
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error_log('Caught exception: ' . $e->getMessage()); |
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} |
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} |
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} |
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return null; |
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} |
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/** |
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* Generates and makes a query into a external vocabulary for the notation of an exact |
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* match for a particular concept. |
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* @param Vocabulary $exvoc external vocabulary to query |
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* @param string $exuri resource URI |
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*/ |
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protected function getExternalNotation($exvoc, $exuri) |
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{ |
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if ($exvoc) { |
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try { |
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$exsparql = $exvoc->getSparql(); |
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$results = $exsparql->queryNotation($exuri); |
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return isset($results) ? $results : null; |
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} catch (EasyRdf\Http\Exception | EasyRdf\Exception | Throwable $e) { |
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if ($this->model->getConfig()->getLogCaughtExceptions()) { |
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error_log('Caught exception: ' . $e->getMessage()); |
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} |
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} |
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} |
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return null; |
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} |
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/** |
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* Sorting the result list to a arbitrary order defined below in mycompare() |
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* @param array $sortable |
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*/ |
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protected function arbitrarySort($sortable) |
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{ |
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// sorting the result list to a arbitrary order defined below in mycompare() |
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if ($sortable !== null) { |
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uksort($sortable, array($this, 'mycompare')); |
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foreach ($sortable as $prop => $vals) { |
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if (is_array($prop)) // the ConceptProperty objects have their own sorting methods |
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{ |
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ksort($sortable[$prop]); |
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} |
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} |
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} |
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return $sortable; |
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} |
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/** |
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* Compares the given objects and returns -1 or 1 depending which ought to be first. |
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* $order defines the priorities of the different properties possible in the array. |
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* @param string $a the first item to be compared |
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* @param string $b the second item to be compared |
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*/ |
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protected function mycompare($a, $b) |
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{ |
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if ($a === $b) { |
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return 0; |
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} |
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$order = $this->order; |
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$position = array_search($a, $order); |
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$position2 = array_search($b, $order); |
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//if both are in the $order, then sort according to their order in $order... |
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if ($position2 !== false && $position !== false) { |
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return ($position < $position2) ? -1 : 1; |
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} |
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//if only one is in $order, then sort to put the one in $order first... |
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if ($position !== false) { |
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return -1; |
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} |
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if ($position2 !== false) { |
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return 1; |
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} |
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//if neither in $order, then a simple alphabetic sort... |
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return ($a < $b) ? -1 : 1; |
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} |
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/** |
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* Getter function to retrieve the ui language from the locale. |
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*/ |
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public function getEnvLang() |
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{ |
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// get language from locale, same as used by gettext, set by Controller |
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return substr(getenv("LC_ALL"), 0, 2); // @codeCoverageIgnore |
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} |
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/** |
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* Getter function for retrieving the resource. |
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*/ |
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public function getResource() |
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{ |
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return $this->resource; |
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} |
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} |
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NatLibFi /
Skosmos
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