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Getting crazy with Relation field

  • Hello,

    i’ve readed doc on relation field, and it seems to be exactly what i need. Perhaps, i’m not able to get it work on front end. Maybe i’m doing something wrong ?

    my process :

    i have a travel guide site, and i wish to link custom posts to a city.
    so i have custom posts : hotel, camping, etc… and also a custom post called “region” where are all the cities.

    In my custom post i added a relation field, linked to the region custom post.

    So in each of my hotels, campings, etc… to display “hotel located in CITY”
    and in my city pages, i want to display “hotels in CITY”.

    i’ve tried both code examples for single-doctor.php & single-location.php i can not have any data displayed. For single doctor, i even have an error message.

    # my single location

    in my single location, i’m tring to display all the markets of this city.
    so i call a function called : be_list_market_in_city()

    and my function is :

    	function be_list_market_in_city() {
    		echo get_the_ID();
    		$args = array(
    				'post_type' => 'marche',
    				'meta_query' => array(
    						'key' => 'contact_city', // name of custom field
    						'value' => '"' . get_the_ID() . '"', // matches exactly "123", not just 123. This prevents a match for "1234"
    						'compare' => 'LIKE'
    		$query = new WP_Query($args);
    		if ($query->have_posts() ) : while ( $query->have_posts() ) : $query->the_post();
    			$title = get_the_title();
    			echo $title. '<br />';

    As you can see, i echo get_the_id() to be sure i have the good ID, and on front, i do have ID 1112 display ( 1112 is the right ID for the location )

    But i have no results returned.
    If i take of the meta_query filter, i do have all the market listed.

    What am i doing wrong ?

    #my single hotel

    in my single hotel, i just made a try with your code in doc, just changing my CPT

    						$locations = get_field('contact_city');
    						<?php if( $locations ): ?>
    							<?php foreach( $locations as $location ): ?>
    									<a href="<?php echo get_permalink( $location->ID ); ?>">
    										<?php echo get_the_title( $location->ID ); ?>
    							<?php endforeach; ?>
    						<?php endif; ?>

    And this return :

    Warning: Invalid argument supplied for foreach() in /home/xxx/zz_dns/xxx/wp-content/themes/xxx/template-parts/content-hotelsdetail.php on line 127

    i add a capture of my settings (in french) for this field :

    Thanks in advance for your precious help in solving this issue.

  • For information, a var_dump of $locations


    string(56) “https://urlofactualpage&#8221;

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