From cdabdd5951626da5b1bd184dca50716248f32c31 Mon Sep 17 00:00:00 2001
From: ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Wed, 16 Apr 2008 14:45:16 +0000
Subject: Generic entity view system

git-svn-id: https://code.elgg.org/elgg/trunk@474 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/entities.php | 26 +++++++++++++++++++++++++-
 engine/lib/users.php    |  4 ++--
 entities/index.php      | 37 +++++++++++++++++++++++++++++++++++++
 languages/en.php        |  4 +++-
 4 files changed, 67 insertions(+), 4 deletions(-)
 create mode 100644 entities/index.php

diff --git a/engine/lib/entities.php b/engine/lib/entities.php
index 3fbd6587c..2cbdc2e73 100644
--- a/engine/lib/entities.php
+++ b/engine/lib/entities.php
@@ -900,11 +900,35 @@
 		return trigger_plugin_hook('permissions_check',$entity->type,array('entity' => $entity, 'user' => $user),false);
 		
 	}
+	
+	/**
+	 * Page handler for generic entities view system
+	 *
+	 * @param array $page Page elements from pain page handler
+	 */
+	function entities_page_handler($page) {
+		if (isset($page[0])) {
+			global $CONFIG;
+			set_input('guid',$page[0]);
+			@include($CONFIG->path . "entities/index.php");
+		}
+	}
+	
+	/**
+	 * Entities init function; establishes the page handler
+	 *
+	 */
+	function entities_init() {
+		register_page_handler('view','entities_page_handler');
+	}
 	
 	/** Register the import hook */
 	register_plugin_hook("import", "all", "import_entity_plugin_hook", 0);
 	
 	/** Register the hook, ensuring entities are serialised first */
-	register_plugin_hook("export", "all", "export_entity_plugin_hook", 0);
+	register_plugin_hook("export", "all", "export_entity_plugin_hook", 0);
+	
+	/** Register init system event **/
+	register_event_handler('init','system','entities_init');
 	
 ?>
\ No newline at end of file
diff --git a/engine/lib/users.php b/engine/lib/users.php
index 166225b9e..5669da06d 100644
--- a/engine/lib/users.php
+++ b/engine/lib/users.php
@@ -491,10 +491,10 @@
 		if (!empty($guid)) // Fixes "Exception thrown without stack frame" when db_select fails
 			$result = get_entity($guid);
 		
-		if (($result) && (!($result instanceof ElggUser)))
+		if ((!empty($result)) && (!($result instanceof ElggUser)))
 			throw new InvalidParameterException("GUID:$guid is not an ElggUser");
 			
-		if ($result)
+		if (!empty($result))
 			return $result;
 		
 		return false;	
diff --git a/entities/index.php b/entities/index.php
new file mode 100644
index 000000000..6c2d4fd0d
--- /dev/null
+++ b/entities/index.php
@@ -0,0 +1,37 @@
+<?php
+
+	/**
+	 * Generic entity viewer
+	 * Given a GUID, this page will try and display any entity
+	 * 
+	 * @package Elgg
+	 * @subpackage Core
+	 * @license http://www.gnu.org/licenses/old-licenses/gpl-2.0.html GNU Public License version 2
+	 * @author Curverider Ltd
+	 * @copyright Curverider Ltd 2008
+	 * @link http://elgg.org/
+	 */
+
+	// Load Elgg engine
+		require_once(dirname(dirname(__FILE__)) . "/engine/start.php");
+
+	// Get the GUID of the entity we want to view
+		$guid = (int) get_input('guid');
+		
+	// Get the entity, if possible
+		if ($entity = get_entity($guid)) {
+
+	// Set the body to be the full view of the entity, and the title to be its title
+			$body = elgg_view_entity($entity,"",true);
+			
+	// Otherwise?
+		} else {
+			
+			$body = elgg_echo('notfound');
+			
+		}
+		
+	// Display the page
+		page_draw("", $body);
+
+?>
\ No newline at end of file
diff --git a/languages/en.php b/languages/en.php
index f584b56a6..4339d9be9 100644
--- a/languages/en.php
+++ b/languages/en.php
@@ -21,6 +21,8 @@
 			'actionundefined' => "The requested action (%s) was not defined in the system.",
 			'actionloggedout' => "Sorry, you cannot perform this action while logged out.",
 	
+			'notfound' => "The requested resource could not be found, or you do not have access to it.",
+	
 		/**
 		 * User details
 		 */
@@ -61,7 +63,7 @@
 			'update' => "Update",
 			'edit' => "Edit",
 			'delete' => "Delete",
-			'Load' => "Load",
+			'load' => "Load",
 	
 		/**
 		 * Generic data words
-- 
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