Marcus Povey <marcus@dushka.co.uk>

* Sketch import/export functions added, pending event handling functions

git-svn-id: https://code.elgg.org/elgg/trunk@275 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 97 insertions, 0 deletions

diff --git a/engine/lib/export.php b/engine/lib/export.php
new file mode 100644
index 000000000..4a39d295f
--- /dev/null
+++ b/engine/lib/export.php
@@ -0,0 +1,97 @@
+<?php
+	/**
+	 * Elgg Data import export functionality.
+	 * 
+	 * @package Elgg
+	 * @subpackage Core
+	 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+	 * @author Marcus Povey
+	 * @copyright Curverider Ltd 2008
+	 * @link http://elgg.org/
+	 */
+
+	/**
+	 * Export a GUID.
+	 * 
+	 * This function exports a GUID and all information related to it in an XML format.
+	 * 
+	 * @param int $guid The GUID.
+	 * @return xml 
+	 */
+	function export($guid)
+	{
+		// trigger serialise event
+
+		// serialise resultant object
+
+		/*
+		  	XML will look something like this:
+
+
+			<elgg>
+				<elgguser uuid="skdfjslklkjsldkfsdfjs:556">
+					<guid>556</guid>
+					<name>Marcus Povey</name>
+
+					...
+				
+				</elgguser>
+				<annotation>
+					<name>Foo</name>
+					<value>baaaa</value>
+				</annotation>
+				<annotation>
+					<name>Monkey</name>
+					<value>bibble</value>
+				</annotation>
+
+				...
+
+				<metadata>
+					<name>Foo</name>
+					<value>baaaa</value>
+				</metadata>
+
+				...
+
+				<my_plugin>
+
+					...
+
+				</my_plugin>
+
+			</elgg> 
+		 
+		 */
+		
+	}
+	
+	/**
+	 * Import an XML serialisation of an object.
+	 * This will make a best attempt at importing a given xml doc.
+	 *
+	 * @param string $xml
+	 * @return int The new GUID of the object.
+	 */
+	function import($xml)
+	{
+		// import via object ? 
+
+		// import via tag : so you pass a tag "<foo>" and all its contents out and something answers by handling it.
+		// THis is recursive but bredth first.
+
+		
+	}
+
+	/**
+	 * Generate a UUID from a given GUID.
+	 * 
+	 * @param int $guid The GUID of an object.
+	 */
+	function guid_to_uuid($guid)
+	{
+		global $CONFIG;
+		
+		return md5($CONFIG->wwwroot . ":$guid");
+	}
+?>
\ No newline at end of file