Memory limit issue querying ACF Post Objects

[iaindurie]

I'm having an issue connecting to the wp-json/wp/v2/posts endpoint while using ACF post objects on my Wordpress site. I have a post object field set up to allow me to link to posts from other posts and pages. If I link to the same post object more than once, i.e if I select "Post 1" for the post object field on "Post 2" as well as "Post 3", I get the following error with wp_debug enabled:

Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 261904 bytes) in C:\Websites\Gatsby\wp-includes\class-wp-hook.php on line 203

I increased the memory limit but the issue remains.

I first discovered this as I was getting the following error using Gatsby.js to build a static site:

Path: /wp-json/wp/v2/posts?per_page=100&page=1
The server response was "500 Internal Server Error"

If I link to a post object only once in Wordpress, I can hit the api endpoint fine. The error only happens when I link to the same post object more than once from different posts/pages.

I'm also using the acf-to-rest-api-recursive plugin to allow me to query acf fields of post objects.

Originally posted here in Gatsby.js - #9144

[ph00lt0]

Same issue here. Gatsby outputs:

GraphQLError: Cannot query field "allWordpressPost" on type "Query". Did you mean "allW ordpressPage", "allWordpressWpUsers", "allWordpressWpMedia", "allWordpressWpTypes", or "wordpressPage"?

[airesvsg]

It's happened because the relationship between the posts caused an infinite loop.

[ph00lt0]

It's happened because the relationship between the posts caused an infinite loop.

Yeah also figured that out now.

[iaindurie]

@phoolto Did you implement any fix or just remove the relationship between the posts?

[ph00lt0]

@phoolto Did you implement any fix or just remove the relationship between the posts?

The only thing needed is at least one post with a featured image or turn off the featured images completely. It would definitely be good to have that fixed in the plugin but for now this should help.

[sebastiantheobald]

Hey, can you explain that? I also got the error using this code:

$ids = get_field( 'weinauswahl', 'option', true );
$query->set( 'post__in', $ids );