[wp-trac] [WordPress Trac] #30858: Scheduled cron job with custom interval is unset on next cron event

[WordPress Trac]

#30858: Scheduled cron job with custom interval is unset on next cron event
----------------------------+-----------------------------
 Reporter:  mrtphoto        |      Owner:
     Type:  defect (bug)    |     Status:  new
 Priority:  normal          |  Milestone:  Awaiting Review
Component:  Cron API        |    Version:  4.1
 Severity:  normal          |   Keywords:
  Focuses:  administration  |
----------------------------+-----------------------------
 plugin adds new interval
 {{{
   function execution_schedule( $schedules ) {
   // adds 2min schedule interval for all import execution script
     $schedules['twomin'] = array(
       'interval' => 120,
       'display' => __('Two Minutes')
       );
     return $schedules;
   }
   add_filter( 'cron_schedules', 'execution_schedule' );
 }
 }}}

 on save options for plugin cron url, we clear the old hook and set the new
 cron job with custom interval
 {{{
 wp_clear_scheduled_hook( 'syt_trigger_one' );
 wp_clear_scheduled_hook( 'syt_execution_one' );
 wp_schedule_event(current_time( 'timestamp'
 ),'twicedaily','syt_trigger_one');
 wp_schedule_event(current_time( 'timestamp'
 ),'twomin','syt_execution_one');
 }}}

 on options page I display the schedule for the hook

 {{{
 echo wp_get_schedule( 'syt_execution_one' );
 }}}

 Immediately after saving it displays 'twomin'. When loading the options
 page after that it shows nothing ''.
 An output of
 {{{
 print_r(get_option('cron'));
 }}}
 confirms the existence of the scheduled cron event on save and subsequent
 disappearance of the hook from cron

 {{{
     [1419832800] => Array
         (
             [syt_trigger_one] => Array
                 (
                     [40cd750bba9870f18aada2478b24840a] => Array
                         (
                             [schedule] => twicedaily
                             [args] => Array
                                 (
                                 )
                             [interval] => 43200
                         )
                 )
             [syt_execution_one] => Array
                 (
                     [40cd750bba9870f18aada2478b24840a] => Array
                         (
                             [schedule] => twomin
                             [args] => Array
                                 (
                                 )
                             [interval] => 120
                         )
                 )
         )
 }}}

 ..after loading the options page again, no "syt_execution_one" hook:

 {{{
     [1419832800] => Array
         (
             [syt_trigger_one] => Array
                 (
                     [40cd750bba9870f18aada2478b24840a] => Array
                         (
                             [schedule] => twicedaily
                             [args] => Array
                                 (
                                 )
                             [interval] => 43200
                         )
                 )
         )
 }}}

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Ticket URL: <https://core.trac.wordpress.org/ticket/30858>
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