From 1e727b299b533535ba2351a6a96d6e05f3c3a34c Mon Sep 17 00:00:00 2001
From: ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Sun, 17 Feb 2008 17:22:42 +0000
Subject: Further metadata and ElggObject updates.

git-svn-id: https://code.elgg.org/elgg/trunk@47 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/objects.php | 53 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'engine/lib')

diff --git a/engine/lib/objects.php b/engine/lib/objects.php
index 734cc2b3f..7cf58a848 100644
--- a/engine/lib/objects.php
+++ b/engine/lib/objects.php
@@ -275,6 +275,32 @@
 			}
 		}
 
+	/**
+	 * Returns the value of a particular piece of metadata on an object
+	 *
+	 * @param string $metadata_name The name of the metadata
+	 * @param int $object_id The object ID
+	 * @param int $site_id The site ID, optionally
+	 * @return mixed The value of the metadata
+	 */
+		function get_object_metadata($metadata_name, $object_id, $site_id = 0) {
+			
+			if ($type_id = get_metadata_type_id($metadata_name)) {
+				
+				$accesslist = get_access_list();
+				$object_id = (int) $objet_id;
+				if ($site_id == 0) $site_id = $CONFIG->site_id;
+				$site_id = (int) $site_id;
+				
+				if ($result = get_data_row("select mv.value from object_metadata om left join metadata_value mv on mv.id = om.value_id where om.object_id = {$object_id} and om.site_id = {$site_id} and om.metadata_type_id = {$type_id}")) {
+					return $result->value;
+				}
+				return false;
+				
+			}
+			
+		}
+		
 	/**
 	 * Removes a piece of (or all) metadata for a particular object.
 	 *
@@ -333,6 +359,20 @@
 				}
 			}
 
+		/**
+		 * Saves this object as a new object in the database.
+		 * Note that if you use this on an already-saved object, it will create a new copy.
+		 *
+		 * @return true|false Depending on success.
+		 */
+			function saveNew() {
+				if ($id = create_object($this->title,$this->description,$this->type,$this->owner_id,$this->access_id,$this->site_id)) {
+					$this->id = $id;
+					return true;
+				}
+				return false;
+			}
+			
 		/**
 		 * Updates an object and provides an alias to update_object
 		 *
@@ -374,6 +414,19 @@
 				}
 				return false;
 			}
+
+		/**
+		 * Returns the value of a particular piece of metadata
+		 *
+		 * @param string $name The name of the metadata
+		 * @return mixed|false The metadata value; false on failure
+		 */
+			function getMetadata($name) {
+				if (!empty($this->id)) {
+					return get_object_metadata($name, $this->id, $this->site_id);
+				}
+				return false;
+			}
 			
 		/**
 		 * Clears metadata for this object, either for a particular type or across the board
-- 
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