Reply To: Get row index inside add_filter( 'acf/load_field' )

• Vayu Robins

• February 22, 2021 at 6:38 pm

Thank you so much @hube2! 🙂 I really appreciate your feedback and for sharing your code. Here is what I ended up using. I kept your naming convention for convenience.

class MY_PROJECT_NAME_acf_filters {
	  
	// variable for row index
	private $my_field_name_index = 0;
	
	public function __construct() {
		// add a filter when preparing repeater
		add_filter( 'acf/prepare_field/key=field_601cf9424f9da', array( $this, 'init_my_field_name_index' ), 10, 1 );
		
		add_filter( 'acf/prepare_field/key=field_6023ad409d89d', array( $this, 'filter_my_sub_field_name' ), 10, 1 );
		
		// add filter for ths sub field that you want to filter
		add_filter( 'acf/prepare_field/key=field_602e8a8821e89', array( $this, 'filter_my_sub_sub_field_name' ), 10, 1 );
	}
	  
	public function init_my_field_name_index( $field ) {
		$this->my_field_name_index = 0;
		return $field;
	}
	
	public function filter_my_sub_field_name( $field ) {
		// after filtering increment the field index
		$this->my_field_name_index++;
		
		// return the field;
		return $field;
	}
	  
	public function filter_my_sub_sub_field_name( $field ) {
		$field['choices'] = [];
		
		$row_index = $this->my_field_name_index - 2;
		
		$product_id = (int) get_user_meta( 2, 'add_products_' . $row_index . '_produkt', true );
		
		if ( ! empty( $product_id ) ) {
			
			$pewc_group = new WP_Query( [
				'posts_per_page => ' -1,
				'post_type' => 'pewc_group',
				'post_parent' => $product_id,
				'post_status' => 'publish'
			] );
			if ( $pewc_group->have_posts() ) {
				while( $pewc_group->have_posts() ) { $pewc_group->the_post();
					
					$field['choices'] = [];
					
					$group_title = get_the_title();
					$group_id = get_the_ID();
					
					$pewc_field = new WP_Query( [
						'posts_per_page => ' -1,
						'post_type' => 'pewc_field',
						'post_parent' => get_the_ID(),
						'post_status' => 'publish',
						'order' => 'ASC'
					] );
					if ( $pewc_field->have_posts() ) {
						while( $pewc_field->have_posts() ) { $pewc_field->the_post();
							$field_label = get_post_meta( get_the_ID(), 'field_label', true );
							if ( ! empty( $field_label ) ) {
								$field['choices'][get_the_ID()] = $field_label . ' (' . get_the_ID() . ')';
							}
						}
						wp_reset_postdata();
					}
					
				}
				wp_reset_postdata();
			}
		}

		// return the field;
		return $field;
	}
	  
}
new MY_PROJECT_NAME_acf_filters();