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I am using wp_schedule_event to hourly insert items from an rss news feed into my client's blog. Here is how I am setting it up in my functions.php:

add_action('init', function(){
     $timescheduled = wp_next_scheduled('update_feed');
     wp_unschedule_event($timescheduled, 'update_feed');

    if (!wp_next_scheduled('update_feed'))
    wp_schedule_event(time(), 'hourly', 'update_feed');
});

add_action('update_feed', 'update_fashion_news');

/* rest of the code for updaring feed goes here */

So first I unschedule it and then schedule the event. Now this seems to work some days and other times it doesn't. Is the unscheduling part necessary? Am I doing this right? What I want to know is:

  1. Am I using my function calls in the right order?
  2. Are the schedule and unschedule calls cancelling each other out?

Here is the full code in a gist if you want to see it: https://gist.github.com/3984658

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1 Answer 1

Inspect your Schedules

The best way to learn coding is to turn debug on and simply inspect your output. If you want to dig deeper, then you often need a custom tool that allows you to inspect the result fast and nicely, readable formatted.

I wrote a plugin for some other answer, that helps you inspecting the WP "Cron Jobs"/Schedules. You can grab it on GitHub as Gist.

Here's what the output looks like.

enter image description here

Forks

@StephenHarris forked the plugin, which is also available as Gist.

Primary difference between this plug-in and the original, is that this displays each seperate cron-job even when two or more share the same hook (and arguments).

- Stephen Harris in the plugins comment

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Thanks @kaiser. I'll try this out for debugging but could you tell me if I am using my function calls for schedule and unschedule in the right order? Or is one cancelling the other out? –  Amit Erandole Oct 31 '12 at 4:40
    
Question @StephenHarris: If I install this gist as a plugin, where exactly would I see the output in the admin panel? –  Amit Erandole Oct 31 '12 at 4:45
    
@AmitErandole You would see the output of both plugins in the shutdown hook, which is the last hook in theme and admin requests. –  kaiser Oct 31 '12 at 14:05

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