Looping through posts in a message field

• ktib1

• February 2, 2022 at 8:54 pm

Hi,

I’m trying to get the field value from all the posts of a custom post type, and display the list in the admin of this custom post type (the edit page of a single post), in an ACF message field.
I actually have no trouble doing that, but the function causes some kind of conflict :
My message is in a field group, and in a 2nd field group the values displayed are those of the first post of the CPT.
In the 1st field group, no problem. If i move the message field to the 2nd field group, no problem in either group (but i need it in the first group)

I tried everything for 3 hours, and have finally understood that it must be related to wp_reset_data();
However, I tried that and it doesn’t work.
I also tried $post_query->reset_postdata(); => this time it shows the most recent post of the query instead of the oldest.

Here is my code (simplified at the maximum when i was trying to isolate the issue)

<?php add_action('acf/render_field/key=field_61e184d76e05b', 'doublons_devis');

function doublons_devis($field){  	

	$args = array(
        'post_type' => 'reservation',
		'posts_per_page' => '-1',
    );
	
    $post_query = new WP_Query($args);

    if($post_query->have_posts() ) {
		echo '<table>'; 
        while($post_query->have_posts() ) {
            $post_query->the_post();			

            ?>					 
	<tr class=""><td>dummycontent</td></tr>
	
<?php		}
$post_query->reset_postdata();
		echo '</table>';
	}
		
 }?>

Thank you in advance for your help…