Add task logging functionality. When a task runs, it creates a log that is

stored in the persistant cache for 30 days.  On the admin_maintenance page
there is a new link for completed tasks "browse log".  Clicking this will
open a dialog box that has the the contents of the log displayed.

The user can then view the log and close the dialog, or press the save button
to download the log to their local machine.

1 files changed, 24 insertions, 0 deletions

diff --git a/modules/gallery/models/task.php b/modules/gallery/models/task.php
index 9e3ae5c6..2e77a7a6 100644
--- a/modules/gallery/models/task.php
+++ b/modules/gallery/models/task.php
@@ -40,7 +40,31 @@ class Task_Model extends ORM {
     return parent::save();
   }
 
+  public function delete() {
+    Cache::instance()->delete($this->_cache_key());
+    return parent::save();
+  }
+
   public function owner() {
     return user::lookup($this->owner_id);
   }
+
+  public function log($msg) {
+    $key = $this->_cache_key();
+    $log = Cache::instance()->get($key);
+
+    // Save for 30 days.
+    $log .= !empty($log) ? "\n" : "";
+    Cache::instance()->set($key, "$log{$msg}",
+                           array("task", "log", "import"), 2592000);
+  }
+
+  public function get_task_log() {
+    $log_data = Cache::instance()->get($this->_cache_key());
+    return  $log_data !== null ? $log_data : false;
+  }
+
+  private function _cache_key() {
+    return md5("$this->id; $this->name; $this->callback");
+  }
 }
\ No newline at end of file