From b3bf72d0faa76ffe3bb62141fca55d4decec19cf Mon Sep 17 00:00:00 2001
From: ben <ben@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Thu, 24 Apr 2008 13:19:32 +0000
Subject: The beginnings of a db upgrade system. See lib/version.php,
 /version.php and the datalist functions in elgglib.php.

git-svn-id: https://code.elgg.org/elgg/trunk@519 36083f99-b078-4883-b0ff-0f9b5a30f544
---
 engine/lib/elgglib.php | 41 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

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

diff --git a/engine/lib/elgglib.php b/engine/lib/elgglib.php
index 2f9396da1..78afe49ce 100644
--- a/engine/lib/elgglib.php
+++ b/engine/lib/elgglib.php
@@ -812,12 +812,51 @@
 	 */
 		
 		function __elgg_php_exception_handler($exception) {
-			
+
 			error_log("*** FATAL EXCEPTION *** : " . $exception);
 			
 			$body = elgg_view("messages/exceptions/exception",array('object' => $exception));
 			echo page_draw("We've encountered a problem.", $body);
 			
 		}
+		
+	/**
+	 * Data lists
+	 */
+		
+	/**
+	 * Get the value of a particular piece of data in the datalist
+	 *
+	 * @param string $name The name of the datalist
+	 * @return string|false Depending on success
+	 */	
+		function datalist_get($name) {
+			
+			global $CONFIG;
+			$name = sanitise_string($name);
+			if ($row = get_data_row("select value from {$CONFIG->prefix}datalists where name = '{$name}'")) {
+				return $row->value;
+			}
+			return false;
+			
+		}
+		
+	/**
+	 * Sets the value for a system-wide piece of data (overwriting a previous value if it exists)
+	 *
+	 * @param string $name The name of the datalist
+	 * @param string $value The new value
+	 * @return true
+	 */
+		function datalist_set($name, $value) {
+			
+			global $CONFIG;
+			$name = sanitise_string($name);
+			$value = sanitise_string($value);
+			delete_data("delete from {$CONFIG->prefix}datalists where name = '{$name}'");
+			insert_data("insert into {$CONFIG->prefix}datalists set name = '{$name}', value = '{$value}'");
+			return true;
+			
+		}
 
 ?>
\ No newline at end of file
-- 
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