1 files changed, 185 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ExternalIdentifierValue.php b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ExternalIdentifierValue.php
new file mode 100644
index 00000000..fab1a42f
--- /dev/null
+++ b/www/wiki/extensions/SemanticMediaWiki/src/DataValues/ExternalIdentifierValue.php
@@ -0,0 +1,185 @@
+<?php
+
+namespace SMW\DataValues;
+
+use SMW\DIProperty;
+
+/**
+ * @private
+ *
+ * @license GNU GPL v2+
+ * @since 2.5
+ *
+ * @author mwjames
+ */
+class ExternalIdentifierValue extends StringValue {
+
+	/**
+	 * DV identifier
+	 */
+	const TYPE_ID = '_eid';
+
+	/**
+	 * @var string|null
+	 */
+	private $uri = null;
+
+	/**
+	 * @param string $typeid
+	 */
+	public function __construct( $typeid = '' ) {
+		parent::__construct( self::TYPE_ID );
+	}
+
+	/**
+	 * @see DataValue::parseUserValue
+	 *
+	 * @param string $value
+	 */
+	protected function parseUserValue( $value ) {
+		parent::parseUserValue( $value );
+	}
+
+	/**
+	 * @see DataValue::getShortWikiText
+	 *
+	 * @param string $value
+	 */
+	public function getShortWikiText( $linker = null ) {
+
+		if ( !$this->isValid() ) {
+			return '';
+		}
+
+		if ( !$this->m_caption ) {
+			$this->m_caption = $this->m_dataitem->getString();
+		}
+
+		if ( $linker === null ) {
+			return $this->m_caption;
+		}
+
+		$uri = $this->makeUri(
+			$this->m_dataitem->getString()
+		);
+
+		if ( !$this->isValid() ) {
+			return '';
+		}
+
+		if ( $this->getOutputFormat() == 'nowiki' ) {
+			$url = $this->makeNonlinkedWikiText( $uri );
+		} else {
+			$url = '['. $uri . ' '. $this->m_caption . ']';
+		}
+
+		return \Html::rawElement(
+			'span',
+			[
+				'class' => 'plainlinks smw-eid'
+			],
+			$url
+		);
+	}
+
+	/**
+	 * @see StringValue::getShortHTMLText
+	 */
+	public function getShortHTMLText( $linker = null ) {
+
+		if ( !$this->isValid() ) {
+			return '';
+		}
+
+		if ( !$this->m_caption ) {
+			$this->m_caption = $this->m_dataitem->getString();
+		}
+
+		if ( $linker === null ) {
+			return $this->m_caption;
+		}
+
+		$uri = $this->makeUri(
+			$this->m_dataitem->getString()
+		);
+
+		if ( !$this->isValid() ) {
+			return $this->m_caption;
+		}
+
+		return \Html::rawElement(
+			'a',
+			[
+				'href'   => $uri,
+				'target' => '_blank'
+			],
+			$this->m_caption
+		);
+	}
+
+	/**
+	 * @see StringValue::getLongWikiText
+	 */
+	public function getLongWikiText( $linked = null ) {
+		return $this->getShortWikiText( $linked );
+	}
+
+	/**
+	 * @see StringValue::getLongHTMLText
+	 */
+	public function getLongHTMLText( $linker = null ) {
+		return $this->getShortHTMLText( $linker );
+	}
+
+	/**
+	 * @since 2.5
+	 *
+	 * @return DataItem
+	 */
+	public function getUri() {
+
+		if ( !$this->isValid() ) {
+			return '';
+		}
+
+		$dataValue = $this->dataValueServiceFactory->getDataValueFactory()->newDataValueByType(
+			'_uri',
+			$this->makeUri( $this->m_dataitem->getString() )
+		);
+
+		return $dataValue->getDataItem();
+	}
+
+	private function makeUri( $value ) {
+
+		if ( $this->uri !== null ) {
+			return $this->uri;
+		}
+
+		$dataItem = $this->dataValueServiceFactory->getPropertySpecificationLookup()->getExternalFormatterUri(
+			$this->getProperty()
+		);
+
+		if ( $dataItem === null ) {
+			$this->addErrorMsg( 'smw-datavalue-external-identifier-formatter-missing' );
+			return;
+		}
+
+		$dataValue = $this->dataValueServiceFactory->getDataValueFactory()->newDataValueByItem(
+			$dataItem,
+			new DIProperty( '_PEFU' )
+		);
+
+		if ( $dataValue->getErrors() !== [] ) {
+			$this->addError( $dataValue->getErrors() );
+			return;
+		}
+
+		return $this->uri = $dataValue->getUriWithPlaceholderSubstitution( $value );
+	}
+
+	private function makeNonlinkedWikiText( $url ) {
+		return str_replace( ':', '&#58;', $url );
+	}
+
+}