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#45811 closed defect (bug) (duplicate)

debug warnings generated on 404 feed

Reported by:	wpmuguru	Owned by:
Priority:	normal	Milestone:
Component:	Query	Version:	5.0.2
Severity:	minor	Keywords:
Cc:		Focuses:

Description

When a site has a plugin active that use is_singular with a $post_type parameter in template_redirect (or similar hook) debug warnings of

PHP Notice: Trying to get property of non-object

when a non-existent /some-slug/feed/ url is requested.

Original discussion: https://github.com/woocommerce/woocommerce/issues/21756

Change History (2)

#1 @peterwilsoncc
8 years ago

This problem occurs because \WP_Query::is_singular() does not check if get_queried_object() returns null before checking for get_queried_object()->post_type.

Adding a check to the core function beforehand should solve the problem. I will need to check if it's needed for \WP_Query::is_single() and other related functions.

Others will know the history of is_singular() better than I, so I will leave it for someone else to decide if a fix should go into core.

---

@wpmuguru FYI: I hit this bug recently for the template_redirect hook and worked around it with the code:

<?php

if ( get_queried_object() === null && ! is_singular( 'post_type' ) ) {
    return;
}

/* Function code */

But you've probably figured that out :)

#2 @SergeyBiryukov
8 years ago

Keywords needs-patch removed
Milestone Awaiting Review
Resolution → duplicate
Status new → closed

Thanks for the report, we're already tracking this issue in #29660.

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