File batch/delete-orphaned-variations.php

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<?php

namespace SIW\Batch;

/**
 * Proces om verweesde variaties te verwijderen
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 * @since     3.0.0
 */
class Delete_Orphaned_Variations extends Job {

    /**
     * {@inheritDoc}
     */
    protected $action = 'delete_orphaned_variations';

    /**
     * {@inheritDoc}
     */
    protected $name = 'verwijderen verweesde variaties';

    /**
     * {@inheritDoc}
     */
    protected $category = 'groepsprojecten';

    /**
     * {@inheritDoc}
     */
    protected $schedule_job = false;

    /**
     * Selecteer alle verweesde variaties
     *
     * @return array
     */
     protected function select_data() {
        $args = [
            'posts_per_page' => -1,
            'post_type'      => 'product',
            'fields'         => 'ids',
            'post_status'    => 'any',
        ];
        $products = get_posts( $args );
    
        //zoek alle product_variations zonder parent.
        $args = [
            'posts_per_page'      => -1,
            'post_type'           => 'product_variation',
            'post_parent__not_in' => $products,
            'fields'              => 'ids',
        ];
        $variations = get_posts( $args );
    
        if ( empty( $variations ) ) {
            return false;
        }

        return $variations;
    }

    /**
     * Verwijderen van verweesde variaties
     *
     * @param mixed $item
     *
     * @return mixed
     */
    protected function task( $item ) {

        $product = wc_get_product( $item );
        if ( false == $product ) {
            return false;
        }
        $product->delete( true );

        return false;
    }
}

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