1 files changed, 96 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/includes/datavalues/SMW_DV_Concept.php b/www/wiki/extensions/SemanticMediaWiki/includes/datavalues/SMW_DV_Concept.php
new file mode 100644
index 00000000..01128751
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/includes/datavalues/SMW_DV_Concept.php
@@ -0,0 +1,96 @@
+<?php
+/**
+ * @ingroup SMWDataValues
+ */
+
+/**
+ * This datavalue is used as a container for concept descriptions as used
+ * on Concept pages with the #concept parserfunction. It has a somewhat
+ * non-standard interface as compared to other datavalues, but this is not
+ * an issue.
+ *
+ * @author Markus Krötzsch
+ * @ingroup SMWDataValues
+ */
+class SMWConceptValue extends SMWDataValue {
+
+	protected function parseUserValue( $value ) {
+		throw new Exception( 'Concepts cannot be initialized from user-provided strings. This should not happen.' );
+	}
+
+	/**
+	 * @see SMWDataValue::loadDataItem()
+	 * @param $dataItem SMWDataItem
+	 * @return boolean
+	 */
+	protected function loadDataItem( SMWDataItem $dataItem ) {
+
+		if ( $dataItem->getDIType() !== SMWDataItem::TYPE_CONCEPT ) {
+			return false;
+		}
+
+		$this->m_dataitem = $dataItem;
+		$this->m_caption = $dataItem->getConceptQuery(); // probably useless
+
+		return true;
+	}
+
+	protected function clear() {
+		$this->m_dataitem = new \SMW\DIConcept( '', '', 0, -1, -1, $this->m_typeid );
+	}
+
+	public function getShortWikiText( $linked = null ) {
+		return $this->m_caption;
+	}
+
+	public function getShortHTMLText( $linker = null ) {
+		return $this->getShortWikiText( $linker ); // should be save (based on xsdvalue)
+	}
+
+	public function getLongWikiText( $linked = null ) {
+		if ( !$this->isValid() ) {
+			return $this->getErrorText();
+		} else {
+			return $this->m_caption;
+		}
+	}
+
+	public function getLongHTMLText( $linker = null ) {
+		if ( !$this->isValid() ) {
+			return $this->getErrorText();
+		} else {
+			return $this->m_caption; // should be save (based on xsdvalue)
+		}
+	}
+
+	public function getWikiValue() {
+		/// This should not be used for anything. This class does not support wiki values.
+		return str_replace( [ '&lt;', '&gt;', '&amp;' ], [ '<', '>', '&' ], $this->m_dataitem->getConceptQuery() );
+	}
+
+	/// Return the concept's defining text (in SMW query syntax)
+	public function getConceptText() {
+		return $this->m_dataitem->getConceptQuery();
+	}
+
+	/// Return the optional concept documentation.
+	public function getDocu() {
+		return $this->m_dataitem->getDocumentation();
+	}
+
+	/// Return the concept's size (a metric used to estimate computation complexity).
+	public function getSize() {
+		return $this->m_dataitem->getSize();
+	}
+
+	/// Return the concept's depth (a metric used to estimate computation complexity).
+	public function getDepth() {
+		return $this->m_dataitem->getDepth();
+	}
+
+	/// Return the concept's query feature bit field (a metric used to estimate computation complexity).
+	public function getQueryFeatures() {
+		return $this->m_dataitem->getQueryFeatures();
+	}
+
+}