File content-types/class-siw-taxonomy.php

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<?php

/**
 * Class om taxonomy toe te voegen
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 */
class SIW_Taxonomy {

    /**
     * Taxonomie
     *
     * @var string
     */
    protected $taxonomy;
    
    /**
     * Constructor
     *
     * @param string $taxonomy
     * @param string $post_type
     * @param array $labels
     * @param array $args
     * @param string $slug
     */
    public function __construct( $taxonomy, $post_type, $labels, $args, $slug ) {

        $this->taxonomy = $taxonomy;
        $this->post_type = $post_type;
        $this->labels = $labels;
        $this->args = $args;
        $this->slug = $slug;

        add_filter( 'taxonomy_template', [ $this, 'register_template'], 10, 3 );
        add_action( 'init', [ $this, 'register'] );
    }

    /**
     * Registreert taxonomie
     */
    public function register() {
        $rewrite = [
            'slug'                       => $this->slug,
            'with_front'                 => false,
            'hierarchical'               => false,
        ];

        $default_args = [
            'hierarchical'       => false,
            'public'             => true,
            'show_ui'            => true,
            'show_admin_column'  => false,
            'show_in_nav_menus'  => true,
            'show_tagcloud'      => false,
            'show_in_quick_edit' => false,
            'meta_box_cb'        => false,
        ];

        $args = wp_parse_args( $this->args, $default_args );

        $args['rewrite'] = $rewrite;
        $args['labels'] = $this->labels;

        register_taxonomy( "siw_{$this->post_type}_{$this->taxonomy}", "siw_{$this->post_type}", $args );
    }

    /**
     * Registreert template voor taxonomy-archiefpagina
     *
     * @param string $template
     * @param string $type
     * @param array $templates
     * @return string
     */
    public function register_template( $template, $type, $templates ) {
        if ( in_array( "taxonomy-siw_{$this->post_type}_{$this->taxonomy}.php", $templates ) && \SIW\Util::template_exists( "archive-{$this->post_type}.php") ) {
            $template = SIW_TEMPLATES_DIR . "/archive-{$this->post_type}.php";
        }
        return $template;
    }
}

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