Errors with debug logging turned on

This topic has 4 replies, 2 voices, and was last updated 5 years, 4 months ago by Anh Tran.

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July 9, 2019 at 8:17 PM #15300

Peter Hannam
Participant

With debug logging enabled every page is reporting these errors:

Notice: Undefined index: fields in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 67

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 383

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-columns/class-mb-columns-processor.php on line 106

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 112

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 84

Notice: Undefined index: fields in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 67

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 383

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box-aio/vendor/meta-box/meta-box-columns/class-mb-columns-processor.php on line 106

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 112

Warning: Invalid argument supplied for foreach() in /nas/content/live/devmyswitchboa/wp-content/plugins/meta-box/inc/meta-box.php on line 84

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July 10, 2019 at 9:05 AM #15306
Anh Tran
Keymaster
Hi Peter,

These errors happen because some meta box is mis-configured. Please check the code for meta box registration to make sure it follows the docs. These are usual problems:
- Forget to return the $meta_boxes variable from the callback for the rwmb_meta_boxes filter.
- Forget to add fields to the meta boxes.
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July 10, 2019 at 1:51 PM #15309

Peter Hannam
Participant

Hi,

For point 1, I was following your example here - and it would presumably not be possible to return the $meta_boxes variable as we've called die/exit.

And I'm sorry but I don't understand your second point - I copied and pasted the output from the builder into my functions.php and then deleted the fieldset from the builder. How could I be missing fields? I'll delete everything and slowly reintroduce things to see if I can narrow the problem down.

Thanks,
Pete

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July 10, 2019 at 7:20 PM #15316
Peter Hannam
Participant
All of the above errors occurred because there was an element missing from the properties array: 'fields' => array():
```
    $meta_boxes[] = array (
        'title' => 'Log Book',
        'id' => 'log-book',
        'post_types' => array(
            0 => 'log_book',
        ),
        'context' => 'normal',
        'priority' => 'high',
    'fields' => array()
    );
```
I had an empty meta-box configured, as I wanted to use the front-end form for this type but only for the default WordPress editor/title.

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July 11, 2019 at 9:00 AM #15319

Anh Tran
Keymaster

Hi Peter,

Glad that you found the problem. That's what I said in the previous comment. However, I've added a simple check for the Meta Box plugin that allows you to have a meta box with no fields. Try it here.

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