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<?php |
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/** |
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* @package midcom.services |
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* @author The Midgard Project, http://www.midgard-project.org |
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* @copyright The Midgard Project, http://www.midgard-project.org |
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* @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License |
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*/ |
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/** |
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* This is a base class which is targeted at MidCOM content object indexing. It should |
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* be used whenever MidCOM documents are indexed, either directly or as a base class. |
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* |
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* It will take an arbitrary Midgard Object, for which Metadata must be available. |
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* The document class will then load the metadata information out of the database |
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* and populate all metadata fields of the document from there. |
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* |
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* If you want to index datamanager driven objects, you should instead look at |
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* the datamanager's document class. |
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* |
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* The GUID of the object being referred is used as a RI. |
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* |
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* The documents type is "midcom". |
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* |
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* @package midcom.services |
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* @see midcom_services_indexer |
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* @see midcom_helper_metadata |
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*/ |
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class midcom_services_indexer_document_midcom extends midcom_services_indexer_document |
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{ |
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/** |
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* The metadata instance attached to the object to be indexed. |
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* |
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* @var midcom_helper_metadata |
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*/ |
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protected $_metadata; |
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/** |
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* The constructor initializes the content object, loads the metadata object |
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* and populates the metadata fields accordingly. |
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* |
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* The source member is automatically populated with the GUID of the document, |
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* the RI is set to it as well. The URL is set to an on-site permalink. |
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* |
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* @param mixed $object The content object to load, passed to the metadata constructor. |
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* @see midcom_helper_metadata |
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*/ |
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public function __construct($object) |
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{ |
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parent::__construct(); |
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if (!midcom::get()->config->get('indexer_backend')) { |
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return; |
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} |
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$this->_set_type('midcom'); |
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if (is_a($object, midcom_helper_metadata::class)) { |
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$this->_metadata = $object; |
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} else { |
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$this->_metadata = midcom_helper_metadata::retrieve($object); |
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if ($this->_metadata == false) { |
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debug_add('document_midcom: Failed to retrieve a Metadata object, aborting.'); |
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return; |
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} |
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} |
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$this->source = $this->_metadata->object->guid; |
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$this->lang = midcom::get()->i18n->get_current_language(); |
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// Add language code to RI as well so that different language versions of the object have unique identifiers |
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$this->RI = "{$this->source}_{$this->lang}"; |
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$this->document_url = midcom::get()->permalinks->create_permalink($this->source); |
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$this->_process_metadata(); |
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} |
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/** |
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* Processes the information contained in the metadata instance. |
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*/ |
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private function _process_metadata() |
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{ |
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$this->read_metadata_from_object($this->_metadata->object); |
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$metadata = $this->read_metadata(); |
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foreach ($metadata as $key => $value) { |
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/** |
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* @see parent::read_metadata_from_object() |
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*/ |
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if (!in_array($key, ['revised', 'revisor', 'created', 'creator'])) { |
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if (in_array($key, ['keywords', 'tags'])) { |
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$this->content .= $value . "\n"; |
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} |
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$this->add_text("META_{$key}", $value); |
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} |
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} |
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} |
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/** |
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* Usually, documents are processed in batches, and constructing the dm for each |
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* document is pretty wasteful, so we keep the instance around and reuse it |
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*/ |
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private function read_metadata() : array |
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{ |
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static $meta_dm; |
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if ($meta_dm === null) { |
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$meta_dm = $this->_metadata->get_datamanager(); |
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} |
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return $meta_dm->set_storage($this->_metadata->object)->get_content_html(); |
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} |
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/** |
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* This will translate all member variables into appropriate |
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* field records, missing topic data is auto-detected |
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*/ |
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public function members_to_fields() |
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{ |
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if ( empty($this->topic_guid) |
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|| empty($this->topic_url) |
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|| empty($this->component)) { |
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//if one of those is missing, we override all three to ensure consistency |
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$this->process_topic(); |
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} |
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parent::members_to_fields(); |
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} |
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} |
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flack /
openpsa
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