Simplify the batch api by having the core event handlers for

start_batch and end_batch add and remove the batch id from the
session.  Modules wishing to do batch processing, just need to fire
the start_batch and end_batch events.  Other modules that need to be
aware of batches (i.e. notifications) just check the session for "batch_id".

1 files changed, 12 insertions, 0 deletions

diff --git a/core/helpers/core_event.php b/core/helpers/core_event.php
index e430319d..64cc9376 100644
--- a/core/helpers/core_event.php
+++ b/core/helpers/core_event.php
@@ -34,4 +34,16 @@ class core_event_Core {
   static function item_before_delete($item) {
     access::delete_item($item);
   }
+
+  static function start_batch() {
+    $batch_id = Session::instance()->get("batch_id");
+    if (empty($batch_id)) {
+      $batch_id = mt_rand();
+      Session::instance()->set("batch_id", $batch_id);
+    }
+  }
+
+  static function end_batch() {
+    Session::instance()->delete("batch_id");
+  }
 }