BookStack Code Mirror - bookstack/blob - app/Entities/Models/BookChild.php

   1 <?php
   2
   3 namespace BookStack\Entities\Models;
   4
   5 use BookStack\References\ReferenceUpdater;
   6 use Illuminate\Database\Eloquent\Relations\BelongsTo;
   7
   8 /**
   9  * Class BookChild.
  10  *
  11  * @property int    $book_id
  12  * @property int    $priority
  13  * @property string $book_slug
  14  * @property Book   $book
  15  */
  16 abstract class BookChild extends Entity
  17 {
  18     /**
  19      * Get the book this page sits in.
  20      */
  21     public function book(): BelongsTo
  22     {
  23         return $this->belongsTo(Book::class)->withTrashed();
  24     }
  25
  26     /**
  27      * Change the book that this entity belongs to.
  28      */
  29     public function changeBook(int $newBookId): self
  30     {
  31         $oldUrl = $this->getUrl();
  32         $this->book_id = $newBookId;
  33         $this->unsetRelation('book');
  34         $this->refreshSlug();
  35         $this->save();
  36
  37         if ($oldUrl !== $this->getUrl()) {
  38             app()->make(ReferenceUpdater::class)->updateEntityReferences($this, $oldUrl);
  39         }
  40
  41         // Update all child pages if a chapter
  42         if ($this instanceof Chapter) {
  43             foreach ($this->pages()->withTrashed()->get() as $page) {
  44                 $page->changeBook($newBookId);
  45             }
  46         }
  47
  48         return $this;
  49     }
  50 }