From f9648e77cf002067cd8a4c19bffbf06e8fe83fd3 Mon Sep 17 00:00:00 2001
From: mjollnir_ <mjollnir_>
Date: Tue, 14 Feb 2006 03:24:08 +0000
Subject: [PATCH] Added cron support for blocks - it was already there in the
 tables, now we just need to use it

---
 admin/cron.php               | 25 +++++++++++++++++++++++++
 blocks/moodleblock.class.php |  7 +++++++
 lib/blocklib.php             |  3 +++
 3 files changed, 35 insertions(+)

diff --git a/admin/cron.php b/admin/cron.php
index b5172c97782..5932eec72b2 100644
--- a/admin/cron.php
+++ b/admin/cron.php
@@ -72,6 +72,31 @@
     }
     mtrace("Finished activity modules");
 
+    mtrace("Starting blocks");
+    if ($blocks = get_records_select("block", "cron > 0 AND (($timenow - lastcron) > cron)")) {
+        // we will need the base class.
+        require_once($CFG->dirroot.'/blocks/moodleblock.class.php');
+        foreach ($blocks as $block) {
+            $blockfile = $CFG->dirroot.'/blocks/'.$block->name.'/block_'.$block->name.'.php';
+            if (file_exists($blockfile)) {
+                require_once($blockfile);
+                $classname = 'block_'.$block->name;
+                $blockobj = new $classname; 
+                if (method_exists($blockobj,'cron')) {
+                    mtrace("Processing cron function for ".$block->name.'....','');
+                    if ($blockobj->cron()) {
+                        if (!set_field('block','lastcron',$timenow,'id',$block->id)) {
+                            mtrace('Error: could not update timestamp for '.$block->name);
+                        }
+                    }
+                    mtrace('done.');
+                }
+            }
+
+        }
+    }
+    mtrace("Finished blocks");
+
     if (!empty($CFG->langcache)) {
         mtrace('Updating languages cache');
         get_list_of_languages();
diff --git a/blocks/moodleblock.class.php b/blocks/moodleblock.class.php
index 0fab4a2b834..14bb583b273 100644
--- a/blocks/moodleblock.class.php
+++ b/blocks/moodleblock.class.php
@@ -83,6 +83,13 @@ class block_base {
      */
     var $config        = NULL;
 
+    /** 
+     * How often the cronjob should run, 0 if not at all.
+     * @var int $cron
+     */
+
+    var $cron          = NULL;
+
 
 /// Class Functions
 
diff --git a/lib/blocklib.php b/lib/blocklib.php
index 4e639eb05e4..b69c18e38f1 100644
--- a/lib/blocklib.php
+++ b/lib/blocklib.php
@@ -1071,6 +1071,9 @@ function upgrade_blocks_plugins($continueto) {
 
             // If it allows multiples, start with it enabled
             $block->multiple = $blockobj->instance_allow_multiple();
+            if (!empty($blockobj->cron)) {
+                $block->cron = $blockobj->cron;
+            }
 
             // [pj] Normally this would be inline in the if, but we need to
             //      check for NULL (necessary for 4.0.5 <= PHP < 4.2.0)