Issue #1938296 by disasm, YesCT: Convert book_admin_overview() and book_render() to a new-style Controller.

core/modules/book/book.admin.inc

@@ -7,41 +7,6 @@
 
 use Drupal\Core\Entity\EntityInterface;
 
-/**
- * Page callback: Returns an administrative overview of all books.
- *
- * @return string
- *   A HTML-formatted string with the administrative page content.
- *
- * @see book_menu()
- */
-function book_admin_overview() {
-  $rows = array();
-
-  $headers = array(t('Book'), t('Operations'));
-
-  // Add any recognized books to the table list.
-  foreach (book_get_books() as $book) {
-    $row = array(
-      l($book['title'], $book['href'], $book['options']),
-    );
-    $links = array();
-    $links['edit'] = array(
-      'title' => t('Edit order and titles'),
-      'href' => 'admin/content/book/' . $book['nid'],
-    );
-    $row[] = array(
-      'data' => array(
-        '#type' => 'operations',
-        '#links' => $links,
-      ),
-    );
-    $rows[] = $row;
-  }
-
-  return theme('table', array('header' => $headers, 'rows' => $rows, 'empty' => t('No books available.')));
-}
-
 /**
  * Form constructor for administering a single book's hierarchy.
  *

core/modules/book/book.module

@@ -134,10 +134,8 @@ function book_menu() {
   $items['admin/content/book'] = array(
     'title' => 'Books',
     'description' => "Manage your site's book outlines.",
-    'page callback' => 'book_admin_overview',
-    'access arguments' => array('administer book outlines'),
+    'route_name' => 'book_admin',
     'type' => MENU_LOCAL_TASK,
-    'file' => 'book.admin.inc',
   );
   $items['admin/content/book/list'] = array(
     'title' => 'List',
@@ -161,10 +159,8 @@ function book_menu() {
   );
   $items['book'] = array(
     'title' => 'Books',
-    'page callback' => 'book_render',
-    'access arguments' => array('access content'),
+    'route_name' => 'book_render',
     'type' => MENU_SUGGESTED_ITEM,
-    'file' => 'book.pages.inc',
   );
   $items['book/export/%/%node'] = array(
     'page callback' => 'book_export',
@@ -274,6 +270,8 @@ function book_entity_view_mode_info() {
 /**
  * Returns an array of all books.
  *
+ * @todo Remove in favor of BookManager Service. http://drupal.org/node/1963894
+ *
  * This list may be used for generating a list of all the books, or for building
  * the options for a form select.
  *

core/modules/book/book.pages.inc

@@ -9,23 +9,6 @@ use Drupal\Core\Entity\EntityInterface;
 use Symfony\Component\HttpKernel\Exception\AccessDeniedHttpException;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
-/**
- * Page callback: Prints a listing of all books.
- *
- * @return string
- *   A HTML-formatted string with the listing of all books content.
- *
- * @see book_menu()
- */
-function book_render() {
-  $book_list = array();
-  foreach (book_get_books() as $book) {
-    $book_list[] = l($book['title'], $book['href'], $book['options']);
-  }
-
-  return theme('item_list', array('items' => $book_list));
-}
-
 /**
  * Page callback: Generates representations of a book page and its children.
  *

core/modules/book/book.routing.yml

@@ -1,3 +1,17 @@
+book_render:
+  pattern: '/book'
+  defaults:
+    _content: '\Drupal\book\Controller\BookController::bookRender'
+  requirements:
+    _permission: 'access content'
+
+book_admin:
+  pattern: '/admin/content/book'
+  defaults:
+    _content: '\Drupal\book\Controller\BookController::adminOverview'
+  requirements:
+    _permission: 'administer book outlines'
+
 book_settings:
   pattern: '/admin/content/book/settings'
   defaults:

core/modules/book/book.services.yml

@@ -0,0 +1,4 @@
+services:
+  book.manager:
+    class: Drupal\book\BookManager
+    arguments: ['@database']

core/modules/book/lib/Drupal/book/BookManager.php

@@ -0,0 +1,82 @@
+<?php
+/**
+ * @file
+ * Contains \Drupal\book\BookManager.
+ */
+
+namespace Drupal\book;
+
+use Symfony\Component\DependencyInjection\ContainerInterface;
+use Drupal\Core\Database\Connection;
+
+/**
+ * Book Manager Service.
+ */
+class BookManager {
+
+  /**
+   * Database Service Object.
+   *
+   * @var \Drupal\Core\Database\Connection
+   */
+  protected $database;
+
+  /**
+   * Books Array.
+   *
+   * @var array
+   */
+  protected $books;
+
+  /**
+   * Constructs a BookManager object.
+   */
+  public function __construct(Connection $database) {
+    $this->database = $database;
+  }
+
+  /**
+   * Returns an array of all books.
+   *
+   * This list may be used for generating a list of all the books, or for building
+   * the options for a form select.
+   *
+   * @return
+   *   An array of all books.
+   */
+  public function getAllBooks() {
+    if (!isset($this->books)) {
+      $this->loadBooks();
+    }
+    return $this->books;
+  }
+
+  /**
+   * Loads Books Array.
+   */
+  protected function loadBooks() {
+    $this->books = array();
+    $nids = $this->database->query("SELECT DISTINCT(bid) FROM {book}")->fetchCol();
+    if ($nids) {
+      $query = $this->database->select('book', 'b', array('fetch' => \PDO::FETCH_ASSOC));
+      $query->join('node', 'n', 'b.nid = n.nid');
+      $query->join('menu_links', 'ml', 'b.mlid = ml.mlid');
+      $query->addField('n', 'type', 'type');
+      $query->addField('n', 'title', 'title');
+      $query->fields('b');
+      $query->fields('ml');
+      $query->condition('n.nid', $nids, 'IN');
+      $query->condition('n.status', 1);
+      $query->orderBy('ml.weight');
+      $query->orderBy('ml.link_title');
+      $query->addTag('node_access');
+      $book_links = $query->execute();
+      foreach ($book_links as $link) {
+        $link['href'] = $link['link_path'];
+        $link['options'] = unserialize($link['options']);
+        $this->books[$link['bid']] = $link;
+      }
+    }
+  }
+
+}

core/modules/book/lib/Drupal/book/Controller/BookController.php

@@ -0,0 +1,89 @@
+<?php
+/**
+ * @file
+ * Contains \Drupal\book\Controller\BookController.
+ */
+
+namespace Drupal\book\Controller;
+
+use Drupal\Core\ControllerInterface;
+use Symfony\Component\DependencyInjection\ContainerInterface;
+
+use Drupal\book\BookManager;
+
+/**
+ * Controller routines for book routes.
+ */
+class BookController implements ControllerInterface {
+
+  /**
+   * Book Manager Service.
+   *
+   * @var \Drupal\book\BookManager
+   */
+  protected $bookManager;
+
+  /**
+   * Injects BookManager Service.
+   */
+  public static function create(ContainerInterface $container) {
+    return new static($container->get('book.manager'));
+  }
+
+  /**
+   * Constructs a BookController object.
+   */
+  public function __construct(BookManager $bookManager) {
+    $this->bookManager = $bookManager;
+  }
+
+  /**
+   * Returns an administrative overview of all books.
+   *
+   * @return string
+   *   A HTML-formatted string with the administrative page content.
+   *
+   */
+  public function adminOverview() {
+    $rows = array();
+
+    $headers = array(t('Book'), t('Operations'));
+
+    // Add any recognized books to the table list.
+    foreach ($this->bookManager->getAllBooks() as $book) {
+      $row = array(
+        l($book['title'], $book['href'], $book['options']),
+      );
+      $links = array();
+      $links['edit'] = array(
+        'title' => t('Edit order and titles'),
+        'href' => 'admin/content/book/' . $book['nid'],
+      );
+      $row[] = array(
+        'data' => array(
+          '#type' => 'operations',
+          '#links' => $links,
+        ),
+      );
+      $rows[] = $row;
+    }
+
+    return theme('table', array('header' => $headers, 'rows' => $rows, 'empty' => t('No books available.')));
+  }
+
+  /**
+   * Prints a listing of all books.
+   *
+   * @return string
+   *   A HTML-formatted string with the listing of all books content.
+   */
+  public function bookRender() {
+    $book_list = array();
+    foreach ($this->bookManager->getAllBooks() as $book) {
+      $book_list[] = l($book['title'], $book['href'], $book['options']);
+    }
+
+    return theme('item_list', array('items' => $book_list));
+  }
+
+}