From f13ffaf15ac87e1a465167c02edf374e3683e828 Mon Sep 17 00:00:00 2001
From: ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Fri, 23 May 2008 17:19:15 +0000
Subject: Introducing a visual widget for inputting access permissions.

git-svn-id: https://code.elgg.org/elgg/trunk@706 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/access.php | 41 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

(limited to 'engine/lib/access.php')

diff --git a/engine/lib/access.php b/engine/lib/access.php
index e81bd2da0..46e8b2e77 100644
--- a/engine/lib/access.php
+++ b/engine/lib/access.php
@@ -60,7 +60,7 @@
 			if (!isset($access_array))
 				$access_array = array();
 			
-			if ($user_id == 0) $user_id = $_SESSION['id'];
+			if ($user_id == 0) $user_id = $_SESSION['guid'];
 			if (($site_id == 0) && (isset($CONFIG->site_id))) $site_id = $CONFIG->site_id;
 			$user_id = (int) $user_id;
 			$site_id = (int) $site_id;
@@ -87,6 +87,45 @@
 			return $access_array[$user_id];
 			
 		}
+		
+		/**
+		 * Returns an array of access permissions that the specified user is allowed to save objects with.
+		 * Permissions are of the form ('id' => 'Description')
+		 *
+		 * @param int $user_id The user's GUID.
+		 * @param int $site_id The current site.
+		 * @param true|false $flush If this is set to true, this will shun any cached version
+		 * @return array List of access permissions=
+		 */
+		function get_write_access_array($user_id = 0, $site_id = 0, $flush = false) {
+			
+			global $CONFIG;
+			static $access_array;
+			
+			if ($user_id == 0) $user_id = $_SESSION['guid'];
+			if (($site_id == 0) && (isset($CONFIG->site_id))) $site_id = $CONFIG->site_id;
+			$user_id = (int) $user_id;
+			$site_id = (int) $site_id;
+			
+			if (empty($access_array[$user_id]) || $flush == true) {
+				
+				$query = "select ag.* from {$CONFIG->dbprefix}access_groups ag ";
+				$query .= " where (ag.site_guid = {$site_id} or ag.site_guid = 0)";
+				$query .= " and (ag.owner_guid = {$user_id} or ag.owner_guid = 0)";
+				
+				$tmp_access_array = array();
+				if ($groups = get_data($query)) {
+					foreach($groups as $group)
+						$tmp_access_array[$group->id] = elgg_echo($group->name);
+				}
+				
+				$access_array[$user_id] = $tmp_access_array;
+				
+			}
+			
+			return $access_array[$user_id];
+			
+		}
 
 	/**
 	 * Some useful constant definitions
-- 
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