[wp-trac] [WordPress Trac] #34723: Warning in get_the_terms() because of non-array (was: WP 4.4 on test site)

[WordPress Trac]

#34723: Warning in get_the_terms() because of non-array
--------------------------+------------------------------
 Reporter:  mrppp         |       Owner:
     Type:  defect (bug)  |      Status:  new
 Priority:  normal        |   Milestone:  Awaiting Review
Component:  Taxonomy      |     Version:
 Severity:  normal        |  Resolution:
 Keywords:                |     Focuses:
--------------------------+------------------------------
Changes (by swissspidy):

 * component:  General => Taxonomy


Old description:

> Using Events manager plugin
> on events i get
> When updating to 4.4 on test site, all my events disappear from calendar
> and on listing page or when viewing the event from settings/events i get
>
> {{{
>
> }}}
> Warning: array_map(): Argument #2 should be an array in
> `C:\xampp\htdocs\xxxxxxx\wp-includes\category-template.php on line 1158`
> {{{
>
> }}}
>

> is this a WP issue or events manager?

New description:

 Using Events manager plugin
 on events i get
 When updating to 4.4 on test site, all my events disappear from calendar
 and on listing page or when viewing the event from settings/events i get

 {{{
 Warning: array_map(): Argument #2 should be an array in
 `C:\xampp\htdocs\xxxxxxx\wp-includes\category-template.php on line 1158`
 }}}


 is this a WP issue or events manager?

--

Comment:

 Hard to tell. Have you informed the developers of that plugin? They should
 test it against 4.4, especially when they would be using term meta stuff.

 That line belongs to `get_the_terms()`. At first glance it looks like
 either the return value of `get_object_term_cache()` or
 `wp_get_object_terms()` isn't properly checked.

 Especially `wp_get_object_terms()` can return a `WP_Error` when the
 taxonomy does not exist. `wp_get_object_terms()` should account for that
 scenario.

--
Ticket URL: <https://core.trac.wordpress.org/ticket/34723#comment:1>
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