PHP Eloquent\Collection类代码示例

 /**
  *
  * $newsletter
  */
 protected function getMaps()
 {
     $posts = new Collection();
     $projects = new Collection();
     $this->each(function ($widget) use($projects, $posts) {
         if ($widget->resource) {
             if ($widget->resource_type == Post::class) {
                 $posts->push($widget->resource_id);
             }
             if ($widget->resource_type == Project::class) {
                 $projects->push($widget->resource_id);
             }
         }
         if ($widget->other_resource) {
             if ($widget->other_resource_type == Post::class) {
                 $posts->push($widget->other_resource_id);
             }
             if ($widget->other_resource_type == Project::class) {
                 $projects->push($widget->other_resource_id);
             }
         }
     });
     $posts = Post::whereIn('posts.id', $posts->all())->with(['translations', 'images', 'images.sizes'])->get();
     $projects = Project::whereIn('portfolio_projects.id', $projects->all())->with(['translations', 'images', 'images.sizes'])->get();
     return [$posts, $projects];
 }

 public function create(Request $request, $student_id = null)
 {
     $message_types = $this->message_type->orderBy('message_type_name')->lists('message_type_name', 'id')->all();
     $schools = $this->school->lists('school_name', 'id')->all();
     if (isset($student_id)) {
         $student = $this->contact->find($student_id);
     } else {
         $student = null;
     }
     $all_contacts = $this->contact->allStudents();
     $contacts = array();
     foreach ($all_contacts as $contact) {
         $contacts[$contact->id] = $contact->name . ' ' . $contact->surname;
     }
     if ($request->input('message_id')) {
         $messages = Message::processIds($request->input('message_id'));
     } else {
         $selected = null;
     }
     $students = new Collection();
     $selected = array();
     if (isset($messages)) {
         foreach ($messages as $message) {
             $students->add($message->Contact);
             $selected[] = $message->Contact->id;
         }
         $students = $students->unique();
     }
     return view()->make('messages.create', compact('message_types', 'schools', 'contacts', 'student', 'selected'));
 }

 /**
  * Render the likes into a string.
  *
  * @param Collection $likesCollection  The likes to render.
  *
  * @param string     $viewAllLikesLink The link to view all of the likes for the content.
  *
  * @return string
  */
 public function render(Collection $likesCollection, $viewAllLikesLink)
 {
     $numLikesToList = $this->settings->get('posts.likes_to_show', 3);
     $numOtherLikes = $likesCollection->count() - $numLikesToList;
     $userId = $this->guard->user()->getAuthIdentifier();
     $likes = [];
     $likesCollection = $likesCollection->filter(function (Like $like) use(&$likes, &$numLikesToList, $userId) {
         if ($like->user->id === $userId) {
             $like->user->name = $this->lang->get('likes.current_user');
             $likes[] = $like;
             $numLikesToList--;
             return false;
         }
         return true;
     });
     $numLikesInCollection = $likesCollection->count();
     if ($numLikesInCollection > 0 && $numLikesToList > 0) {
         if ($numLikesInCollection < $numLikesToList) {
             $numLikesToList = $numLikesInCollection;
         }
         $randomLikes = $likesCollection->random($numLikesToList);
         if (!is_array($randomLikes)) {
             // random returns a single model if $numLikesToList is 1...
             $randomLikes = array($randomLikes);
         }
         foreach ($randomLikes as $key => $like) {
             $likes[] = $like;
         }
     }
     return $this->viewFactory->make('likes.list', compact('numOtherLikes', 'likes', 'viewAllLikesLink'))->render();
 }

 public function update_groupe_post(Request $request, $id)
 {
     $user = Auth::user();
     if ($user->profil->intitule == "administrateur") {
         $erreurs = new Collection();
         $this->validate($request, ['intitule' => 'required', 'description' => 'required', 'parcours' => 'exists:parcours,id']);
         $groupes = Groupe::all();
         $groupe = Groupe::find($id);
         foreach ($groupes as $g) {
             if ($request->input('intitule') != $groupe->intitule) {
                 if ($request->input('intitule') == $g->intitule) {
                     $erreurs->prepend("Cet intitulé existe déjà !");
                     break;
                 }
             }
         }
         $groupe->intitule = $request->input('intitule');
         $groupe->description = $request->input('description');
         $groupe->parcours_id = $request->input('parcours');
         $parcours = Parcours::all();
         if (count($erreurs) > 0) {
             return response()->view('groupe/update_groupe', ['groupe' => $groupe, 'erreurs' => $erreurs, 'parcours' => $parcours]);
         }
         $groupe->save();
         return redirect('admin/groupe');
     }
     return "Vous êtes pas administrateur";
 }

 public function collection(Collection $collection)
 {
     $this->data = $collection->map(function ($item) {
         return $this->makeData($item);
     })->all();
     return $this;
 }

 public function update_profil_post(Request $request, $id)
 {
     $user = Auth::user();
     if ($user->profil->intitule == "administrateur") {
         $erreurs = new Collection();
         $this->validate($request, ['intitule' => 'required']);
         $profils = Profil::all();
         $profil = Profil::find($id);
         foreach ($profils as $p) {
             if ($request->input('intitule') != $profil->intitule) {
                 if ($request->input('intitule') == $p->intitule) {
                     $erreurs->prepend("Cet intitulé existe déjà !");
                     break;
                 }
             }
         }
         $profil->intitule = $request->input('intitule');
         if (count($erreurs) > 0) {
             return response()->view('profil/update_profil', ['profil' => $profil, 'erreurs' => $erreurs]);
         }
         $profil->save();
         return redirect('admin/profil');
     }
     return "Vous êtes pas administrateur";
 }

 public function addTrainingData($user, $training)
 {
     $collection = new Collection();
     $visible = true;
     foreach ($training as $itemKey => $item) {
         $item['visible'] = $visible;
         foreach ($item['relations'] as $relationKey => $relation) {
             $done = true;
             foreach ($relation as $elementKey => $element) {
                 $element['id'] = "{$item['id']}.{$element['id']}";
                 $element['watch-url'] = route('training.watch', ['year' => 2016, 'item' => $element['id']]);
                 $element['watched'] = Watched::where('subscription_id', $user->id)->where('item_id', $element['id'])->first();
                 $element['visible'] = $visible || $element['watched'];
                 $done = $done && $element['watched'];
                 if ($relationKey == 'quiz') {
                     $element['answer'] = $element['watched'] ? $element['watched']->answer : null;
                 }
                 $visible = $element['watched'] !== null;
                 $item['relations'][$relationKey][$elementKey] = $element;
             }
         }
         $item['done'] = $done;
         $collection->push($item);
     }
     return $collection;
 }

 private function getRawCollectionData(Collection $collection)
 {
     foreach ($collection as $element) {
         $this->execute_with_relations ? $element->loadDisplayableRelations() : null;
     }
     return $collection->toArray();
 }

 public function upload(PhotoUploadRequest $request)
 {
     $user = Auth::user();
     $destinationPath = 'uploads/';
     if ($request->hasFile('files')) {
         $photos = new Collection();
         $i = 0;
         foreach ($request->file('files') as $file) {
             $extension = $file->getClientOriginalExtension();
             $new_filename = time() . uniqid() . str_random(rand(5, 15)) . '.' . $extension;
             $file->move($destinationPath, $new_filename);
             $photos[$i] = new Photo();
             $photos[$i]->content_type = $file->getClientMimeType();
             $photos[$i]->disk_name = $new_filename;
             $photos[$i]->file_name = $file->getClientOriginalName();
             $photos[$i]->path = $destinationPath . $new_filename;
             $photos[$i]->file_size = $file->getClientSize();
             $photos[$i]->user_id = $user->id;
             $photos[$i]->save();
             $i++;
         }
         return $photos->first();
     }
     return response()->json(['status' => 'error']);
 }

 /**
  * @param $items
  * @return array
  */
 public function transformCollection(Collection $items, $showHref = false)
 {
     $data = $items->map(function ($item) use($showHref) {
         return $this->transform($item, $showHref);
     })->toArray();
     return $data;
 }

 /**
  * @param Collection $model
  * @param string $single
  *
  * @return string
  */
 public function createData($model, string $single)
 {
     $str = sprintf("\n\t\t\$scope.%s = new Minute.Models.%sArray(null);\n", $single, $this->fixName($single));
     $str .= sprintf("\t\t\$scope.%s.load(%s);\n", $single, json_encode($model->toArray(), JSON_PRETTY_PRINT));
     //{metadata: {offset: 0, limit: 2, total: %d}, items: %s}
     return $str;
 }

 /**
  * Execute the console command.
  *
  * @return mixed
  */
 public function handle()
 {
     $month = new Carbon($this->argument('month'));
     $billboards = Billboard::activated()->get();
     $pictures = Storage::files();
     $missing_pictures = new Collection();
     foreach ($billboards as $billboard) {
         $facings = $billboard->facings->all();
         foreach ($facings as $facing) {
             $ref = $this->reference($billboard, $facing, $month);
             $image_url = "{$ref}.jpg";
             if (in_array($image_url, $pictures)) {
                 try {
                     $this->trackingRepository->create(['facing_id' => $facing->id, 'image_url' => $image_url, 'tracking_date' => $month, 'location_id' => $billboard->location_id]);
                     $this->info('Tracking #' . $ref . ' with image url ' . $image_url . ' created successfully.');
                 } catch (\Illuminate\Database\QueryException $e) {
                     $this->error('Tracking #' . $ref . ' already exists.');
                 }
             } else {
                 $this->error('Facing #' . $ref . ' picture missing.');
                 $missing_pictures->push(["name" => $facing->name, "image_url" => $image_url]);
             }
         }
     }
     if (!$missing_pictures->isEmpty()) {
         $this->notifyMissingPictures($missing_pictures, "it@sagaciresearch.com");
     }
 }

 public function index()
 {
     $sections = Section::all();
     if (Auth::user()) {
         $cart = Auth::user()->cart;
     } else {
         $cart = new Collection();
         if (Session::has('cart')) {
             foreach (Session::get('cart') as $item) {
                 $elem = new Cart();
                 $elem->product_id = $item['product_id'];
                 $elem->amount = $item['qty'];
                 if (isset($item['options'])) {
                     $elem->options = $item['options'];
                 }
                 $cart->add($elem);
             }
         }
     }
     $total = 0;
     $options = new Collection();
     foreach ($cart as $item) {
         $total += $item->product->price * $item->amount;
         if ($item->options) {
             $values = explode(',', $item->options);
             foreach ($values as $value) {
                 $options->add(OptionValue::find($value));
             }
         }
     }
     return view('site.cart', compact('sections', 'total', 'cart', 'options'));
 }

 public static function updateArrangement(Collection $collection, array $arrangement)
 {
     $order = 0;
     foreach ($arrangement as $parent) {
         /** @var \CipeMotion\Medialibrary\Entities\Category $category */
         $category = $collection->find(array_get($parent, 'id', 0));
         $children = array_get($parent, 'children', []);
         if (!is_null($category)) {
             $category->order = $order;
             $category->parent_id = null;
             $category->save();
             if (count($children) > 0) {
                 $childOrder = 0;
                 foreach ($children as $child) {
                     /** @var \CipeMotion\Medialibrary\Entities\Category $childCategory */
                     $childCategory = $collection->find(array_get($child, 'id', 0));
                     if (!is_null($childCategory)) {
                         $childCategory->order = $childOrder;
                         $childCategory->parent_id = $category->id;
                         $childCategory->save();
                         $childOrder++;
                     }
                 }
             }
             $order++;
         }
     }
 }

 /**
  * Display the specified resource.
  *
  * @param int|null $id
  *
  * @return \Illuminate\Http\Response
  */
 public function show($id = null)
 {
     if ($id === null) {
         $profile = Auth::user()->getProfile();
     } else {
         $profile = Profile::findOrFail($id);
     }
     $is_mine = $profile->user_id == \Flocc\Auth::getUserId();
     if ($is_mine === true) {
         $activities = (new Activities())->get();
         $tribes = (new Tribes())->get();
         $events_time_lines = new Collection();
         foreach ($profile->getTimeLine()->getLatestUpdatedEvents() as $event) {
             foreach ($event->getTimeLine() as $line) {
                 if ($line->isMessage()) {
                     $events_time_lines->push(['id' => $event->getId(), 'slug' => $event->getSlug(), 'event' => $event->getTitle(), 'date' => $line->getTime(), 'message' => $line->getMessage()]);
                 }
             }
         }
         $events_time_lines = $events_time_lines->sortByDesc('date')->slice(0, 5);
         return view('dashboard', compact('profile', 'is_mine', 'activities', 'tribes', 'events_time_lines'));
     } else {
         return view('profiles.show', compact('profile', 'is_mine', 'id'));
     }
 }