BookStack Code Mirror - bookstack/blob - app/Http/Controllers/ReferenceController.php

   1 <?php
   2
   3 namespace BookStack\Http\Controllers;
   4
   5 use BookStack\Auth\Permissions\PermissionApplicator;
   6 use BookStack\Entities\Models\Page;
   7 use Illuminate\Database\Eloquent\Relations\Relation;
   8
   9 class ReferenceController extends Controller
  10 {
  11
  12     protected PermissionApplicator $permissions;
  13
  14     public function __construct(PermissionApplicator $permissions)
  15     {
  16         $this->permissions = $permissions;
  17     }
  18
  19     /**
  20      * Display the references to a given page.
  21      */
  22     public function page(string $bookSlug, string $pageSlug)
  23     {
  24         /** @var Page $page */
  25         $page = Page::visible()->whereSlugs($bookSlug, $pageSlug)->firstOrFail();
  26
  27         $baseQuery = $page->referencesTo()
  28             ->where('from_type', '=', (new Page())->getMorphClass())
  29             ->with([
  30                 'from' => fn(Relation $query) => $query->select(Page::$listAttributes),
  31                 'from.book' => fn(Relation $query) => $query->scopes('visible'),
  32                 'from.chapter' => fn(Relation $query) => $query->scopes('visible')
  33             ]);
  34
  35         $references = $this->permissions->restrictEntityRelationQuery(
  36             $baseQuery,
  37             'references',
  38             'from_id',
  39             'from_type'
  40         )->get();
  41
  42         return view('pages.references', [
  43             'page' => $page,
  44             'references' => $references,
  45         ]);
  46     }
  47 }