WordPress plugin development helper functions..

WPHelper.trait.php

    /**
    * Determine if the current user has the relevant permissions
    *
    * @param $post_id
    * @return bool
    */
    private function canSaveData( $post_id ) {
    if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
            return false;
        if ( 'page' == $_POST['post_type'] ) {
            if ( ! current_user_can( 'edit_page', $post_id ) )
                return false;
        } else {
            if ( ! current_user_can( 'edit_post', $post_id ) )
                return false;
        }
        return true;
    }

    /**
    * Register a Custom Post Type
    *
    * @param $single
    * @param $plural
    * @param null $supports
    */
    private function registerPostType( $single,  $supports = null ) {
    
        $args = array(
            'labels' => $this->auto_labels( $single ),
            'public' => true,
            'publicly_queryable' => true,
            'show_ui' => true,
            'show_in_menu' => true,
            'query_var' => true,
            'rewrite' => true,
            'capability_type' => 'post',
            'has_archive' => true,
            'hierarchical' => false,
            'menu_position' => null,
            'supports' => ( $supports ) ? $supports : array( 'title', 'editor', 'page-attributes' )
        );
        register_post_type( $single, $args );
    }
    
    
    /**
     * Generates Labels for Custom Post Types 
     *
     * @param string $singular
     * @param string $plural
     * @return array
     */
    function auto_labels( $singular, $plural = '' ) {
        if ( empty( $plural ) )
            $plural = $singular . 's';
     
        return array(
            'name' => $plural,
            'singular_name' => $singular,
            'search_items' => 'Search ' . $plural,
            'all_items' => $plural,
            'edit_item' => 'Edit ' . $plural,
            'add_new_item' => 'Add New ' . $plural,
            'menu_name' => $plural,
            'new_item' => 'New ' . $singular,
            'view_item' => 'View ' . $plural,
            'not_found' => 'No ' . $plural . ' found',
            'not_found_in_trash' => 'No ' . $plural . ' found in Trash',
            'parent_item_colon' => '',
        );
    }
    
    /**
    * Render a Template File
    *
    * @param $filePath
    * @param null $viewData
    * @return string
    */
    public function getTemplatePart( $filePath, $viewData = null ) {
    
        ( $viewData ) ? extract( $viewData ) : null;
    
        ob_start();
        include ( "$filePath" );
        $template = ob_get_contents();
        ob_end_clean();
    
        return $template;
    }