Get posts with a relationship post category

• snape

• February 27, 2019 at 5:58 am

Hi,

I have 2 custom posts types:
1 – subject ( has categories: easy, normal, hard)
-name (text)
-teacher (text)
2 – school_class (no categories)
-subject (relationship)
-place (text)

I need to know how to get all the school_class that have the “easy” category (of subject).

Thanks

• joshangehr

• February 28, 2019 at 3:46 pm

Assuming I’ve understood your request correctly, replace YOUR_FIELD_NAME_HERE with the field name of the relationship field you’ve created under the school_class custom post type.

<?php 

// Get all school_class posts
$args = array( 
	'post_type' => 'school_class', 
	'posts_per_page' => -1,
);		

// Generate the loop
$loop = new WP_Query( $args );

while ( $loop->have_posts() ) : $loop->the_post();

	// Get the relationship field_name that you've defined
	$posts = get_field('YOUR_FIELD_NAME_HERE');

	if ( $posts ):

		foreach ( $posts as $post):

			// Set up the post for posts with that field_name
			setup_postdata($post); 

			// Narrow the posts by the "easy" category
            // Refer to https://codex.wordpress.org/Function_Reference/has_category for more options
			if (has_category('easy')):

			        // Print the whole post object
			        // Do what you want from here
			        print_r($post);

		     endif;

		endforeach;

		// Reset the postdata so the page works correctly
		wp_reset_postdata();
				
        endif;

endwhile;	

?>		

• joshangehr

• February 28, 2019 at 3:53 pm

Assuming I’ve understood your post correctly, replace YOUR_FIELD_NAME_HERE with the field name of your relationship field.

<?php 

	// Get all school_class posts
	$args = array( 
		'post_type' => 'school_class', 
		'posts_per_page' => -1,
	);		

	// Generate the loop
	$loop = new WP_Query( $args );

	while ( $loop->have_posts() ) : $loop->the_post();

		// Get the relationship field_name that you've defined
		$posts = get_field('YOUR_FIELD_NAME_HERE');

		if ( $posts ):

			foreach ( $posts as $post):

				// Set up the post for posts with that field_name
				setup_postdata($post); 

				// Narrow the posts by the "easy" category
				if (has_category('easy')):

					// Print the whole post object
					// Do what you want from here
					print_r($post);

				endif;

			endforeach;

			// Reset the postdata so the page works correctly
			wp_reset_postdata();

		endif;

	endwhile;	

?>

• snape

• March 1, 2019 at 11:37 am

Thanks!