I am trying to do something simple ( i hope)
The background,
I have two cpt's. Supplements and Case study.
In "case study" I have a Select field that I want to be populated with the content from the Supplements CPT.
The supplements CPT named "Suppliments" contain only 1 field single line "name"
The Casestudy cpt named "Case study" slug "case-study" has a select field "Supplements" slug "supplements"
I need all the supplements entries from the cpt named "Suppliments" to pupulate the select field (this field allows for multiple entries) in the Case study cpt.
I have tried some code but i am still not successful
A ssummery of what i am truying to do:
The source data for the select field will come from "suppliment" and the select field is in the "Case study" with the field called "name"
The code I have was use on another site , hiwever my php is not that hot. I tried to alter it but to no avail
<?php
/**
* Generate child theme functions and definitions
*
* @package Generate
*/
add_filter( 'wpt_field_options', 'populate_select', 10, 3);
function populate_select( $options, $title, $type ){
switch( $title ){
case 'Suppliments':
$options = array();
$args = array(
'post_type' => 'suppliment',
'post_status' => 'publish',
'meta_query' => array(
array(
),
),
);
$posts_array = get_posts( $args );
foreach ($posts_array as $post) {
$first_name = get_post_meta($post->ID,'wpcf-first_name');
$last_name = get_post_meta($post->ID,'wpcf-tmsurname');
$options[] = array(
'#value' => $post->ID,
'#title' => $first_name[0]." ".$last_name[0],
);
}
break;
}
return $options;
}
I need all the supplements entries from the cpt named "Suppliments" to pupulate the select field (this field allows for multiple entries) in the Case study cpt.
Types doesn't offer a multiple select custom field, so if you need to select multiple options you must use checkboxes. However, that presents a different problem, because wpt_field_options doesn't filter checkbox options, only select (single) and radio fields. Right now, there's not a good way to solve this problem with a custom field. Instead, you could create a many-to-many relationship between Supplements and Case Studies. This would allow you to select one or more Supplements to associate with a Case Study in wp-admin. Otherwise, you're looking at manually maintaining the list of Supplements as a checkboxes custom field.
More information about many-to-many relationships:
https://toolset.com/documentation/toolset-training-course/part-9-many-to-many-relationships-in-toolset/
