File batch/delete-workcamps.php

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<?php

namespace SIW\Batch;

/**
 * Proces om oude Groepsprojecten te verwijderen
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 * @since     3.0.0
 */
class Delete_Workcamps extends Job {

    /**
     * Aantal maanden voordat Groepsproject verwijderd wordt.
     */
    const MAX_AGE_WORKCAMP = 6;

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

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

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

    /**
     * Selecteer Groepsprojecten die meer dan 6 maanden geleden zijn begonnen
     *
     * @return array
     */
    protected function select_data() {
        $limit = date( 'Y-m-d', time() - ( self::MAX_AGE_WORKCAMP * MONTH_IN_SECONDS ) );

        $args = [
            'return'         => 'ids',
            'limit'          => -1,
            'max_start_date' => $limit
        ];
        $products = wc_get_products( $args );
        
        if ( empty( $products ) ) {
            return false;
        }
        return $products;
    }

    /**
     * Verwijderen van product (inclusief variaties)
     *
     * @param int $product_id
     *
     * @return mixed
     */
    protected function task( $product_id ) {

        $product = wc_get_product( $product_id );
        if ( false == $product ) {
            return false;
        }

        //Verwijder projectspecifieke afbeeldingen
        $project_images = get_posts([
            'post_type'   => 'attachment',
            'post_status' => 'inherit',
            'fields'      => 'ids',
            'meta_query'  => [
                [
                    'key'     => 'plato_project_id',
                    'value'   => $product->get_meta('project_id'),
                    'compare' => '='
                ],
            ],
        ]);
        foreach ( $project_images as $project_image ) {
            wp_delete_attachment( $project_image, true );
        }

        //Verwijder alle variaties
        $variations = $product->get_children();
        foreach ( $variations as $variation_id ) {
            $variation = wc_get_product( $variation_id );
            if ( false == $variation ) {
                continue;
            }
            $variation->delete( true );
        }

        //Verwijder het product zelf
        $product->delete( true );
        $this->increment_processed_count();

        return false;
    }
}

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