[Resolved] Echo custom field value of post from relationship

[Author]

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[MennoB5853]

Hi Toolset,

I'm looking for a way to echo a custom field value from a post relationship in PHP.

I have a post type Job and Company and i would like to show the company street on the Job single page, in a PHP template. Any idea how to do this?

Thanks,
Menno

[Christian Cox]

Hi, you will use the Post Relationships API to determine the ID of the related Company post. Then you can use types_render_field to display the formatted custom field value, or you can use get_post_meta to display the raw value from the database.

Post Relationships API documentation here: https://toolset.com/documentation/customizing-sites-using-php/post-relationships-api
You can find other examples in the forum by searching for toolset_get_related_post or toolset_get_related_posts.

The types_render_field API documentation is here: https://toolset.com/documentation/customizing-sites-using-php/functions/
Click the orange "+More" button beneath any field type to show examples.

WordPress's get_post_meta documentation is available here:
https://developer.wordpress.org/reference/functions/get_post_meta/
Note that you should use the 'wpcf-' prefix for custom field slugs when you're calling WordPress functions like this.

Let me know if you need more specific guidance on this.

[MennoB5853]

Hi Christian,

Thanks for your response.

Can you share a small sample of code to get a custom field value from another post type?

Thanks,
Menno

[Christian Cox]

Here is an example showing how to get an ID of a "writer" post in a one-to-many post relationship with the slug 'writer-book', based on a specific book post ID, then use the writer ID to get the value of some custom field in the writer post:

$book_id = 12345;
$writer = toolset_get_related_post( $book_id, 'writer-book' );
$writer_field = types_render_field( 'some-field-slug', array( 'item' => $writer ) );
// now $writer_field holds the formatted custom field value from the writer post