38cdebd0c6
Initial import of the bdmurphy Bookshelf work: the bd-bookshelf theme, bd-bookshelf-plugin, bd-bookshelfhelper and bd-simpleemail plugins, plus the specification documents, mockups and release archives.
396 lines
13 KiB
PHP
396 lines
13 KiB
PHP
<?php
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/**
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* Main Plugin Class
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*/
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if (!defined('ABSPATH')) {
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exit;
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}
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class BD_BookShelfHelper {
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private static $instance = null;
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private $db;
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public static function instance() {
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if (null === self::$instance) {
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self::$instance = new self();
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}
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return self::$instance;
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}
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private function __construct() {
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$this->init_hooks();
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}
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private function init_hooks() {
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add_action('init', array($this, 'register_post_types'));
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add_action('init', array($this, 'register_taxonomies'));
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add_action('init', array($this, 'register_shortlinks'));
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add_action('wp_head', array($this, 'output_seo_tags'));
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add_filter('nav_menu_items', array($this, 'filter_series_menu_item'), 10, 2);
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if (is_admin()) {
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BD_BookShelfHelper_Admin::instance();
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}
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}
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public function register_post_types() {
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register_post_type('book', array(
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'labels' => array(
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'name' => __('Books', 'bd-bookshelfhelper'),
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'singular_name' => __('Book', 'bd-bookshelfhelper'),
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'add_new' => __('Add New', 'bd-bookshelfhelper'),
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'add_new_item' => __('Add New Book', 'bd-bookshelfhelper'),
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'edit_item' => __('Edit Book', 'bd-bookshelfhelper'),
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'new_item' => __('New Book', 'bd-bookshelfhelper'),
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'view_item' => __('View Book', 'bd-bookshelfhelper'),
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'search_items' => __('Search Books', 'bd-bookshelfhelper'),
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),
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'public' => true,
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'has_archive' => true,
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'show_in_menu' => 'bd-bookshelf',
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'supports' => array('title', 'editor', 'thumbnail', 'excerpt', 'custom-fields'),
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'rewrite' => array('slug' => 'book'),
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'menu_icon' => 'dashicons-book',
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'show_in_rest' => true,
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));
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}
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public function register_taxonomies() {
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register_taxonomy('series', 'book', array(
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'labels' => array(
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'name' => __('Series', 'bd-bookshelfhelper'),
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'singular_name' => __('Series', 'bd-bookshelfhelper'),
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'add_new_item' => __('Add New Series', 'bd-bookshelfhelper'),
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'new_item_name' => __('New Series Name', 'bd-bookshelfhelper'),
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),
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'hierarchical' => true,
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'public' => true,
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'show_admin_column' => true,
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'rewrite' => array('slug' => 'series'),
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'show_in_rest' => true,
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));
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}
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public function register_shortlinks() {
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add_rewrite_rule('^([a-z0-9-]+)/?$', 'index.php?book_slug=$matches[1]', 'top');
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add_rewrite_rule('^([a-z0-9-]+)r([a-z])$', 'index.php?book_slug=$matches[1]&review=$matches[2]', 'top');
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}
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public function filter_series_menu_item($items, $args) {
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if ($args->theme_location !== 'primary') {
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return $items;
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}
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$series_count = self::series_count();
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if ($series_count > 0) {
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$series_item = '<li class="menu-item series-item"><a href="' . home_url('/series/') . '">' . __('Series', 'bd-bookshelfhelper') . '</a></li>';
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if (preg_match('/(Books<li.*?<\/li>)/s', $items, $matches)) {
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$items = str_replace($matches[1], $matches[1] . $series_item, $items);
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}
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}
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return $items;
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}
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public function output_seo_tags() {
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if (!is_singular('book')) {
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return;
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}
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$book_id = get_the_ID();
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$title = get_post_meta($book_id, 'seo_title', true);
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if (!$title) {
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$title = get_the_title($book_id) . ' | ' . get_bloginfo('name');
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}
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$description = get_post_meta($book_id, 'seo_description', true);
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if (!$description) {
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$excerpt = get_post_meta($book_id, 'blurb_excerpt', true);
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$description = substr($excerpt, 0, 160);
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}
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echo '<meta name="description" content="' . esc_attr($description) . '">' . "\n";
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echo '<meta property="og:title" content="' . esc_attr($title) . '">' . "\n";
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echo '<meta property="og:description" content="' . esc_attr($description) . '">' . "\n";
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echo '<meta property="og:type" content="book">' . "\n";
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echo '<meta name="twitter:card" content="summary_large_image">' . "\n";
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$schema = self::generate_schema($book_id);
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echo '<script type="application/ld+json">' . json_encode($schema) . '</script>' . "\n";
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}
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public function generate_schema($book_id) {
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$book = get_post($book_id);
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$schema = array(
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'@context' => 'https://schema.org',
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'@type' => 'Book',
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'name' => $book->post_title,
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'author' => array(
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'@type' => 'Person',
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'name' => get_bloginfo('name'),
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),
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);
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$asin = get_post_meta($book_id, 'asin', true);
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if ($asin) {
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$schema['isbn'] = $asin;
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}
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$cover_id = get_post_thumbnail_id($book_id);
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if ($cover_id) {
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$cover_url = wp_get_attachment_url($cover_id);
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$schema['image'] = $cover_url;
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}
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$description = get_post_meta($book_id, 'blurb', true);
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if ($description) {
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$schema['description'] = $description;
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}
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$series_term = get_the_terms($book_id, 'series');
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if ($series_term && !is_wp_error($series_term)) {
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$schema['isPartOf'] = array(
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'@type' => 'BookSeries',
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'name' => $series_term[0]->name,
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);
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}
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return $schema;
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}
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public static function get_featured_books($limit = 5) {
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$args = array(
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'post_type' => 'book',
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'posts_per_page' => $limit,
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'post_status' => 'publish',
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'orderby' => 'meta_value',
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'meta_key' => 'publish_date',
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'order' => 'DESC',
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);
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$query = new WP_Query($args);
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return $query->posts;
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}
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public static function get_cover_url($book_id, $size = 'thumbnail', $lang = 'en') {
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$meta_key = 'cover_' . $lang;
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$cover_id = get_post_meta($book_id, $meta_key, true);
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if (!$cover_id) {
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$cover_id = get_post_thumbnail_id($book_id);
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}
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if ($cover_id) {
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$image = wp_get_attachment_image_url($cover_id, $size);
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if ($image) {
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return $image;
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}
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}
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return BD_BHS_URI . 'assets/default-cover.png';
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}
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public static function get_book_url($book_id) {
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$slug = get_post_meta($book_id, 'short_link_slug', true);
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if ($slug) {
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return home_url('/' . $slug);
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}
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return get_permalink($book_id);
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}
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public static function get_ratings($book_id) {
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$ratings = array();
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$amazon_rating = get_post_meta($book_id, 'amazon_rating', true);
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if ($amazon_rating) {
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$ratings['amazon'] = $amazon_rating;
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}
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$goodreads_rating = get_post_meta($book_id, 'goodreads_rating', true);
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if ($goodreads_rating) {
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$ratings['goodreads'] = $goodreads_rating;
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}
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return $ratings;
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}
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public static function get_retailer_links($book_id, $format = 'ebook') {
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$links = array();
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$retailers = array(
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'amazon' => array(
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'name' => 'Amazon',
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'base_url' => 'https://www.amazon.com/dp/',
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'param' => '?tag=',
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),
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'apple' => array(
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'name' => 'Apple Books',
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'base_url' => 'https://books.apple.com/',
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'param' => '?at=',
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),
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'barnes' => array(
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'name' => 'Barnes & Noble',
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'base_url' => 'https://www.barnesandnoble.com/',
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'param' => '?aid=',
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),
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'kobo' => array(
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'name' => 'Kobo',
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'base_url' => 'https://www.kobo.com/',
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'param' => '?aid=',
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),
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'google' => array(
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'name' => 'Google Play',
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'base_url' => 'https://play.google.com/store/apps/details?id=',
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'param' => '&partnerCode=',
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),
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);
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$affiliates = get_option('bdm_affiliate_codes', array());
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foreach ($retailers as $key => $retailer) {
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$url_meta = $format . '_url_' . $key;
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$url = get_post_meta($book_id, $url_meta, true);
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if (!$url && $key === 'amazon') {
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$asin = get_post_meta($book_id, 'asin', true);
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if ($asin) {
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$affiliate = isset($affiliates[$key]) ? $affiliates[$key] : '';
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$url = $retailer['base_url'] . $asin . $retailer['param'] . $affiliate;
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}
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}
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if ($url) {
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$links[] = array(
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'name' => $retailer['name'],
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'url' => $url,
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'retailer' => $key,
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);
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}
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}
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return $links;
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}
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public static function display_retailer_links($book_id, $format = 'ebook') {
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$links = self::get_retailer_links($book_id, $format);
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foreach ($links as $link) {
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echo '<a href="' . esc_url($link['url']) . '" class="retailer-link retailer-' . esc_attr($link['retailer']) . '" target="_blank" rel="noopener noreferrer">' . esc_html($link['name']) . '</a>';
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}
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}
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public static function get_localized_title($book_id, $lang = 'en') {
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$title = get_post_meta($book_id, 'title_' . $lang, true);
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if (!$title) {
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$title = get_the_title($book_id);
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}
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return $title;
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}
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public static function get_localized_blurb($book_id, $lang = 'en') {
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return get_post_meta($book_id, 'blurb_' . $lang, true);
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}
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public static function get_blurb_excerpt($book_id, $length = 150) {
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$blurb = get_post_meta($book_id, 'blurb', true);
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if ($blurb) {
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return substr($blurb, 0, $length) . '...';
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}
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return '';
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}
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public static function get_preview_excerpt($book_id, $lang = 'en') {
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return get_post_meta($book_id, 'preview_excerpt_' . $lang, true);
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}
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public static function get_pull_quotes($book_id, $lang = 'en') {
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$quotes = array();
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for ($i = 1; $i <= 5; $i++) {
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$quote = get_post_meta($book_id, 'pull_quote_' . $lang . '_' . $i, true);
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if ($quote) {
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$quotes[] = $quote;
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}
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}
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return $quotes;
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}
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public static function get_reviews($book_id) {
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global $wpdb;
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$table_name = $wpdb->prefix . 'bd_reviews';
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$reviews = $wpdb->get_results($wpdb->prepare(
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"SELECT * FROM {$table_name} WHERE book_id = %d ORDER BY display_order ASC",
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$book_id
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));
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return $reviews ?: array();
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}
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public static function get_pen_name($book_id) {
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$pen_name_id = get_post_meta($book_id, 'pen_name_id', true);
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if ($pen_name_id) {
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global $wpdb;
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$table_name = $wpdb->prefix . 'bd_pen_names';
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$pen_name = $wpdb->get_var($wpdb->prepare(
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"SELECT pen_name FROM {$table_name} WHERE id = %d AND active = 1",
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$pen_name_id
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));
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return $pen_name ?: 'B.D. Murphy';
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}
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return 'B.D. Murphy';
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}
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public static function get_series_info($book_id) {
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$terms = get_the_terms($book_id, 'series');
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if ($terms && !is_wp_error($terms)) {
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$series = $terms[0];
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$volume = get_post_meta($book_id, 'volume_number', true);
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return array(
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'id' => $series->term_id,
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'name' => $series->name,
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'slug' => $series->slug,
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'volume' => $volume ?: 1,
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);
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}
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return null;
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}
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public static function series_count() {
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$terms = get_terms(array(
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'taxonomy' => 'series',
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'hide_empty' => true,
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'fields' => 'count',
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));
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return $terms ?: 0;
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}
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public static function get_supported_languages() {
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return array(
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'en' => 'English',
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'fr' => 'Fran\u00e7ais',
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'de' => 'Deutsch',
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'es' => 'Espa\u00f1ol',
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'it' => 'Italiano',
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'pt' => 'Portugu\u00eas',
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'ru' => 'Russian',
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'ja' => 'Japanese',
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'zh' => 'Chinese',
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);
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}
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public static function get_awards() {
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return get_option('bdm_awards', array());
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}
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} |