File content-types/class-siw-post-type.php

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<?php

/**
 * Class om een custom post type toe te voegen
 * 
 * @copyright 2019 SIW Internationale Vrijwilligersprojecten
 */
class SIW_Post_Type {
    /**
     * Post type
     *
     * @var string
     */
    protected $post_type;

    /**
     * Labels
     *
     * @var array
     */
    protected $labels;

    /**
     * Undocumented variable
     *
     * @var array
     */
    protected $args = [];

    /**
     * Slug voor losse post
     *
     * @var string
     */
    protected $single_slug;

    /**
     * Slug voor archiefpagina
     *
     * @var string
     */
    protected $archive_slug;

    /**
     * Undocumented variable
     *
     * @var array
     */
    protected $meta_box_fields;

    /**
     * Undocumented function
     *
     * @param string $post_type
     * @param array $args
     * @param array $labels
     * @param string $single_slug
     * @param string $archive_slug
     */
    public function __construct( $post_type, $args, $labels, $meta_box_fields, $single_slug, $archive_slug = true ) {
        $this->post_type = $post_type;
        $this->args = $args;
        $this->labels = $labels;
        $this->meta_box_fields = $meta_box_fields;
        $this->single_slug = $single_slug;
        $this->archive_slug = $archive_slug;

        add_filter( 'single_template', [ $this, 'register_single_template'], 10, 3 );
        add_filter( 'archive_template', [ $this, 'register_archive_template'], 10, 3 );
        add_filter( 'rwmb_meta_boxes', [ $this, 'add_meta_box' ] );
        add_action( 'init', [ $this, 'register_post_type'] );
    }

    /**
     * Registreert post type
     */
    public function register_post_type() {
        $defaults = [
            'label'               => '',
            'description'         => '',
            'labels'              => $this->labels,
            'menu_icon'           => null,
            'supports'            => ['title', 'excerpt'],
            'taxonomies'          => [],
            'hierarchical'        => false,
            'public'              => true,
            'show_ui'             => true,
            'show_in_menu'        => true,
            'show_in_admin_bar'   => false,
            'show_in_nav_menus'   => true,
            'can_export'          => true,
            'has_archive'         => $this->archive_slug,
            'exclude_from_search' => false,
            'publicly_queryable'  => true,
            'rewrite'             => $this->get_rewrite(),
            'capability_type'     => 'post',
            'map_meta_cap'        => true,
        ];
        $args = wp_parse_args( $this->args, $defaults );

        register_post_type( "siw_{$this->post_type}", $args);
    }

    /**
     * Geeft rewrite rules terug
     * 
     * @return array
     */
    protected function get_rewrite() {
        $rewrite = [
            'slug'       => $this->single_slug,
            'with_front' => false,
            'pages'      => false,
            'feeds'      => false,
        ];
        return $rewrite;
    }

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

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

    /**
     * Voegt meta box toe
     *
     * @param array $meta_boxes
     * @return array
     */
    public function add_meta_box( $meta_boxes ) {
        if ( empty( $this->meta_box_fields ) ) {
            return $meta_boxes;
        }
        $meta_boxes[] = [
            'id'          => "siw_{$this->post_type}",
            'title'       => $this->labels['singular_name'],
            'post_types'  => "siw_{$this->post_type}",
            'toggle_type' => 'slide',
            'context'     => 'normal',
            'priority'    => 'high',
            'fields'      => $this->meta_box_fields,
        ];
        return $meta_boxes;
    }


}

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