[Resolved] Automatically populate CPT-title by titles of related CPTs

[Author]

Posts

[alexanderW-6]

Hi there,

I'm looking for a solution to automatically create titles if a CPT 1 is getting related with CPT 2 and cpt 3.
Something like this: https://toolset.com/forums/topic/add-auto-generate-post-title-from-fields/#post-1213248 but not with custom fields.

The idea is to create an Event (CPT 1) that is getting a name from an Artist (CPT 2 - First Relationship) and a Location (CPT3 - Second Relationship) so that it looks like Artist @ Location when we save it.

Thanks for an idea or a hint and kind regards, Alex

[Shane]

Hi Alexander,

Thank you for getting in touch.

The concept here is essentially the same however i'm not able to write this custom code for you.

Are you relating CPT1, CPT2 and CPT3 all on the same form ?

Meaning is there are relationship field on the form for CPT1 that allows you to link it with CPT2 and CPT3 ?

Please let me know.
Thanks,
Shane

[alexanderW-6]

Hi Shane,

yes. Ideally we want to create a post event fill the needed data and then connect with CPT 2 (Artist) and CPT 3 (Location).
After saving the Title of the Event should be CPT-2-Title @ CPT-3-Title...

Kind Regards, Alex

[Shane]

Hi Alex,

In such a case then we might be able to get the ID's from the frontend form for each post in the relationship and get the post titles for each post.

Do you know how to check the post request payload in your browser?

If not you can let me know and I can provide you with the correct $_POST request variable to use when you're retrieving the value from the $_POST request.

I will need access to the form to be able to do this.

Thanks,
Shane

[alexanderW-6]

Ok, not really, i'm not a programmer... but we didn't plan a frontend-post-submission, the post are created in the backend by the user. We have to prepare everything in the beginning of next week, we just found out, that it not possible without custom code.

thanks

[Shane]

Hi Alexander,

In this case then you will need to make use of the relationship functions to get the posts in the relationship

Something like this is definitely in the realm of custom coding as wordpress core itself doesn't support the use of custom fields for post titles.

With this function here you're able to get the related post information.
https://toolset.com/documentation/customizing-sites-using-php/post-relationships-api/#toolset_get_related_post

This will allow you to get the ID of the related post. From there you can use this to get the title of the posts.
https://developer.wordpress.org/reference/functions/get_the_title/

Once you've got both titles then you should be able to combine them to form your final post title.

Please let me know if this helps.
Thanks,
Shane