1 files changed, 28 insertions, 0 deletions
diff --git a/www/wiki/extensions/SemanticMediaWiki/docs/technical/code-snippets/hook.fileupload.beforeupdate.md b/www/wiki/extensions/SemanticMediaWiki/docs/technical/code-snippets/hook.fileupload.beforeupdate.md
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+## SMW::FileUpload::BeforeUpdate hook
+
+SMW 2.4
+
+```php
+use SMW\DataItemFactory
+
+$GLOBALS['wgHooks']['SMW::FileUpload::BeforeUpdate'][] = function ( $filePage, $semanticData ) {
+
+	$dataItemFactory = new DataItemFactory();
+
+	$property = $dataItemFactory->newDIProperty( '___ext_file_sha1' );
+
+	$semanticData->addPropertyObjectValue(
+		$property,
+		$dataItemFactory->newDIBlob( $filePage->getFile()->getSha1() )
+	);
+
+	$property = $dataItemFactory->newDIProperty( '___ext_file_size' );
+
+	$semanticData->addPropertyObjectValue(
+		$property,
+		$dataItemFactory->newDIBlob( $filePage->getFile()->getSize() )
+	);
+
+	return true;
+};
+```
+\ No newline at end of file