Added the ability to unschedule jobs to the scheduler

apps/ocr/__init__.py

@@ -60,7 +60,6 @@ register_multi_item_links(['queue_document_list'], [re_queue_multiple_document,
 register_links(['setup_queue_transformation_create', 'setup_queue_transformation_edit', 'setup_queue_transformation_delete', 'document_queue_disable', 'document_queue_enable', 'queue_document_list', 'node_active_list', 'setup_queue_transformation_list'], [queue_document_list, node_active_list], menu_name='secondary_menu')
 register_links(['setup_queue_transformation_edit', 'setup_queue_transformation_delete', 'setup_queue_transformation_list', 'setup_queue_transformation_create'], [setup_queue_transformation_create], menu_name='sidebar')
 
-
 register_tool(all_document_ocr_cleanup, namespace='ocr', title=_(u'OCR'))
 
 #Menus
@@ -83,4 +82,4 @@ def document_post_save(sender, instance, **kwargs):
 
 post_save.connect(document_post_save, sender=Document)
 
-register_interval_job(task_process_document_queues, seconds=QUEUE_PROCESSING_INTERVAL)
+register_interval_job('task_process_document_queues', _(u'Checks the OCR queue for pending documents.'), task_process_document_queues, seconds=QUEUE_PROCESSING_INTERVAL)

apps/scheduler/api.py

@@ -1,12 +1,24 @@
 from scheduler import scheduler
+from scheduler.exceptions import AlreadyScheduled
 
 registered_jobs = {}
 
 
-def register_interval_job(func, weeks=0, days=0, hours=0, minutes=0,
+def register_interval_job(name, title, func, weeks=0, days=0, hours=0, minutes=0,
                          seconds=0, start_date=None, args=None,
                          kwargs=None, job_name=None, **options):
 
-    scheduler.add_interval_job(func=func, weeks=weeks, days=days,
+    if name in registered_jobs:
+        raise AlreadyScheduled
+
+    job = scheduler.add_interval_job(func=func, weeks=weeks, days=days,
         hours=hours, minutes=minutes, seconds=seconds,
-        start_date=start_date, args=args, kwargs=kwargs)#, **options)
+        start_date=start_date, args=args, kwargs=kwargs, **options)
+
+    registered_jobs[name] = {'title': title, 'job': job}
+    
+
+def remove_job(name):
+    if name in registered_jobs:
+        scheduler.unschedule_job(registered_jobs[name]['job'])
+        

apps/scheduler/exceptions.py

@@ -0,0 +1,2 @@
+class AlreadyScheduled(Exception):
+    pass