Unable to retrieve post objects from PHP Generated fields.

• patrickbjohnson

• November 6, 2016 at 6:11 am

I’ve successfully created fields on an option page with acf_add_local_field and acf_add_local_field_group but I’m unable to retrieve the value from those fields.

I’ve got a loop creating multiple post_object fields which except multiple posts. I’d like to retrive the post data and display it within a template. Any thoughts?

Here’s the code I’m using to create the fields.

if ( defined( 'POLYLANG_VERSION' ) ) {
	add_filter('acf/fields/post_object/result', 'my_post_object_result', 10, 4);
	function my_post_object_result( $result, $object, $field, $post ) {
		
		global $polylang;
		
		$language = $polylang->model->get_post_language($object->ID);
		
		$result .= ' (' . strtoupper( $language->slug) . ')';

		return $result;
	}

	add_filter('acf/fields/post_object/result/name=field_name', 'my_post_object_result', 10, 4);
}

if ( defined( 'POLYLANG_VERSION' ) && class_exists('acf')  ) {

	// Create a field group for our ACF field to be inserted into. 
	// It's basically the visual wrapper for the field. 
	// 
	function pt_create_acf_local_field_group($group_key, $title) {
		acf_add_local_field_group(array (
			'key' => $group_key,
				'title' => $title,
				'location' => array (
					array (
						array (
							'param' => 'options_page',
							'operator' => '==',
							'value' => 'acf-options',
						),
					),
				),
			'menu_order' => 0,
			'position' => 'normal',
			'style' => 'default',
			'label_placement' => 'top',
			'instruction_placement' => 'label',
			'hide_on_screen' => '',
			
		));
	}

	// Dymanically generates our field(s)
	function pt_create_acf_local_field($key, $label, $name, $tax, $parent) {
		acf_add_local_field( array(
			'key' => $key,
			'name' => $name,
			'type' => 'post_object',
			'parent' => $parent,
			'post_type' => 'post',
			'multiple' => 1,
			'taxonomy' => array('language:'. $tax),
			'min' => 0,
			'max' => 3,
			'instructions' => 'Select items from here to feature in the "feature" area (top section) of the home ' . strtoupper( $tax ) . ' page.',
			'return_format' => 'object',
		));
	}

	if( function_exists('acf_add_local_field') && function_exists( 'acf_add_local_field_group' )  ) {

		$pl_languages = pll_languages_list();

		foreach ($pl_languages as $key => $value) {
			$group = 'group_' . $key . '_lang_' . $value;
			$groupTitle = strtoupper( $value ) . ' Featured Posts';

			$key = 'field_lang_' . $value;
			$label = $value;
			$name = 'featured_lang_' . $value;

			pt_create_acf_local_field($key, $label, $name, $value, $group);
			pt_create_acf_local_field_group($group, $groupTitle);

		}
	}
}

There is some Polylang stuff going on but I do not suspect that to be created an issue for ACF, although maybe I’m wrong.

To retrieve the values within the template I’ve tried to retrieve with the follow functions:

get_field( <VALUE_NAME>, 'option')
get_field(acf_get_local_field(<VALUE_NAME>, 'option')

acf_get_local_field( <VALUE_NAME>)
While acf_get_local_field() returned some data, it gave me the entire group, not the actual field I requested.

• patrickbjohnson

• November 6, 2016 at 6:21 am

Resolved.

For some reason it wasn’t working before (life of a dev) but is working now with:

get_field('FIELD NAME', 'option')