Make WordPress Core

Opened 2 years ago

Closed 22 months ago

#55755 closed defect (bug) (worksforme)

Enabling REST API on custom post type cause featured to be invisible on post, page, custom post type

Reported by: bikram_sth's profile bikram_sth Owned by:
Milestone: Priority: normal
Severity: normal Version: 5.9.3
Component: General Keywords:
Focuses: Cc:


When we enable REST API on custom post type with code below

'show_in_rest' => true,
'rest_base' => 'themes',
'rest_controller_class' => 'WP_REST_Posts_Controller',
'supports' => array( 'title', 'editor', 'thumbnail', 'excerpt', 'comments'),

After this, we get Gutenberg editor on custom post type but the featured image option is gone

Change History (3)

#1 @marcbelletre
2 years ago

Hi @bikram_sth,

I just ran into the exact same issue and finally figured it out. For some reason the featured image stopped working when enabling the block editor with 'show_in_rest' => true

The problem was that I had deleted by mistake the index.php file in my theme. Putting it back restored the featured image feature in the Gutenberg editor.

#2 @bikram_sth
22 months ago

  • Severity changed from normal to critical

Hi @marcbelletre

It is not only with index.php issue. On a fresh WordPress install it is not working. I tried on default WordPress theme too and still featured image section not shown.

#3 @peterwilsoncc
22 months ago

  • Milestone Awaiting Review deleted
  • Resolution set to worksforme
  • Severity changed from critical to normal
  • Status changed from new to closed

This is caused by setting the rest_base to themes. Both theme and themes are reserved terms in WordPress.

To determine if the current theme supports post thumbnails, WordPress loads the rest endpoint http://wp-dev.local/wp-json/wp/v2/themes?context=edit&status=active&_locale=user.

Setting your CPT's rest endpoint to themes causes the endpoint to be replaced so the editor is unable to determine thumbnail support.

I've closed this ticket as worksforme as registering a CPT without using the reserved term displays the thumbnail panel as expected.

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