2016-02-20 07:37:06 -05:00
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<?php namespace BookStack\Repos;
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use BookStack\Book;
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use BookStack\Chapter;
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use BookStack\Entity;
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use BookStack\Exceptions\NotFoundException;
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use BookStack\Page;
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2016-05-01 16:20:50 -04:00
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use BookStack\Services\PermissionService;
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use BookStack\Services\ViewService;
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use Illuminate\Support\Collection;
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2016-02-20 07:37:06 -05:00
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class EntityRepo
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{
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2016-03-05 14:00:26 -05:00
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/**
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* @var Book $book
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*/
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public $book;
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/**
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* @var Chapter
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*/
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public $chapter;
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/**
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* @var Page
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*/
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public $page;
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/**
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* Base entity instances keyed by type
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* @var []Entity
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*/
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protected $entities;
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/**
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* @var PermissionService
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*/
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protected $permissionService;
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/**
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* @var ViewService
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*/
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protected $viewService;
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2016-05-15 08:41:18 -04:00
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/**
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* Acceptable operators to be used in a query
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* @var array
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*/
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protected $queryOperators = ['<=', '>=', '=', '<', '>', 'like', '!='];
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2016-02-20 07:37:06 -05:00
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/**
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* EntityService constructor.
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*/
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public function __construct()
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{
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// TODO - Redo this to come via injection
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$this->book = app(Book::class);
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$this->chapter = app(Chapter::class);
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$this->page = app(Page::class);
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$this->entities = [
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'page' => $this->page,
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'chapter' => $this->chapter,
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'book' => $this->book
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];
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$this->viewService = app(ViewService::class);
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$this->permissionService = app(PermissionService::class);
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}
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/**
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* Get an entity instance via type.
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* @param $type
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* @return Entity
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*/
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protected function getEntity($type)
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{
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return $this->entities[strtolower($type)];
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}
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/**
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* Base query for searching entities via permission system
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* @param string $type
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* @param bool $allowDrafts
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* @return \Illuminate\Database\Query\Builder
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*/
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protected function entityQuery($type, $allowDrafts = false)
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{
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$q = $this->permissionService->enforceEntityRestrictions($type, $this->getEntity($type), 'view');
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if (strtolower($type) === 'page' && !$allowDrafts) {
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$q = $q->where('draft', '=', false);
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}
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return $q;
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}
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/**
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* Check if an entity with the given id exists.
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* @param $type
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* @param $id
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* @return bool
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*/
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public function exists($type, $id)
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{
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return $this->entityQuery($type)->where('id', '=', $id)->exists();
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}
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/**
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* Get an entity by ID
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* @param string $type
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* @param integer $id
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* @param bool $allowDrafts
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* @return Entity
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*/
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public function getById($type, $id, $allowDrafts = false)
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{
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return $this->entityQuery($type, $allowDrafts)->findOrFail($id);
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}
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/**
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* Get an entity by its url slug.
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* @param string $type
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* @param string $slug
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* @param string|bool $bookSlug
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* @return Entity
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* @throws NotFoundException
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*/
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public function getBySlug($type, $slug, $bookSlug = false)
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{
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$q = $this->entityQuery($type)->where('slug', '=', $slug);
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if (strtolower($type) === 'chapter' || strtolower($type) === 'page') {
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$q = $q->where('book_id', '=', function($query) use ($bookSlug) {
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$query->select('id')
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->from($this->book->getTable())
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->where('slug', '=', $bookSlug)->limit(1);
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});
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}
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$entity = $q->first();
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if ($entity === null) throw new NotFoundException(trans('errors.' . strtolower($type) . '_not_found'));
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return $entity;
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}
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/**
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* Get all entities of a type limited by count unless count if false.
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* @param string $type
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* @param integer|bool $count
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* @return Collection
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*/
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public function getAll($type, $count = 20)
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{
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$q = $this->entityQuery($type)->orderBy('name', 'asc');
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if ($count !== false) $q = $q->take($count);
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return $q->get();
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}
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/**
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* Get all entities in a paginated format
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* @param $type
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* @param int $count
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* @return \Illuminate\Contracts\Pagination\LengthAwarePaginator
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*/
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public function getAllPaginated($type, $count = 10)
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{
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return $this->entityQuery($type)->orderBy('name', 'asc')->paginate($count);
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}
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/**
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* Get the most recently created entities of the given type.
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* @param string $type
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* @param int $count
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* @param int $page
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* @param bool|callable $additionalQuery
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*/
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public function getRecentlyCreated($type, $count = 20, $page = 0, $additionalQuery = false)
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{
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$query = $this->permissionService->enforceEntityRestrictions($type, $this->getEntity($type))
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->orderBy('created_at', 'desc');
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if (strtolower($type) === 'page') $query = $query->where('draft', '=', false);
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if ($additionalQuery !== false && is_callable($additionalQuery)) {
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$additionalQuery($query);
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}
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return $query->skip($page * $count)->take($count)->get();
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}
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/**
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* Get the most recently updated entities of the given type.
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* @param string $type
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* @param int $count
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* @param int $page
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* @param bool|callable $additionalQuery
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*/
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public function getRecentlyUpdated($type, $count = 20, $page = 0, $additionalQuery = false)
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{
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$query = $this->permissionService->enforceEntityRestrictions($type, $this->getEntity($type))
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->orderBy('updated_at', 'desc');
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if (strtolower($type) === 'page') $query = $query->where('draft', '=', false);
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if ($additionalQuery !== false && is_callable($additionalQuery)) {
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$additionalQuery($query);
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}
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return $query->skip($page * $count)->take($count)->get();
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}
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/**
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* Get the most recently viewed entities.
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* @param string|bool $type
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* @param int $count
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* @param int $page
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* @return mixed
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*/
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public function getRecentlyViewed($type, $count = 10, $page = 0)
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{
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$filter = is_bool($type) ? false : $this->getEntity($type);
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return $this->viewService->getUserRecentlyViewed($count, $page, $filter);
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}
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/**
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* Get the most popular entities base on all views.
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* @param string|bool $type
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* @param int $count
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* @param int $page
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* @return mixed
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*/
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public function getPopular($type, $count = 10, $page = 0)
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{
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$filter = is_bool($type) ? false : $this->getEntity($type);
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return $this->viewService->getPopular($count, $page, $filter);
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}
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2016-03-13 08:04:08 -04:00
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/**
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* Get draft pages owned by the current user.
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* @param int $count
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* @param int $page
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*/
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public function getUserDraftPages($count = 20, $page = 0)
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{
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return $this->page->where('draft', '=', true)
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->where('created_by', '=', user()->id)
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->orderBy('updated_at', 'desc')
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->skip($count * $page)->take($count)->get();
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}
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public function getBySearch($type, $term, $whereTerms = [], $count = 20, $paginationAppends = [])
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{
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$terms = $this->prepareSearchTerms($term);
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$q = $this->permissionService->enforceChapterRestrictions($this->getEntity($type)->fullTextSearchQuery($terms, $whereTerms));
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$q = $this->addAdvancedSearchQueries($q, $term);
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$entities = $q->paginate($count)->appends($paginationAppends);
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$words = join('|', explode(' ', preg_quote(trim($term), '/')));
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// Highlight page content
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if ($type === 'page') {
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//lookahead/behind assertions ensures cut between words
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$s = '\s\x00-/:-@\[-`{-~'; //character set for start/end of words
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foreach ($entities as $page) {
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preg_match_all('#(?<=[' . $s . ']).{1,30}((' . $words . ').{1,30})+(?=[' . $s . '])#uis', $page->text, $matches, PREG_SET_ORDER);
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//delimiter between occurrences
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$results = [];
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foreach ($matches as $line) {
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$results[] = htmlspecialchars($line[0], 0, 'UTF-8');
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}
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$matchLimit = 6;
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if (count($results) > $matchLimit) $results = array_slice($results, 0, $matchLimit);
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$result = join('... ', $results);
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//highlight
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$result = preg_replace('#' . $words . '#iu', "<span class=\"highlight\">\$0</span>", $result);
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if (strlen($result) < 5) $result = $page->getExcerpt(80);
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$page->searchSnippet = $result;
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}
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return $entities;
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}
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// Highlight chapter/book content
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foreach ($entities as $entity) {
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//highlight
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$result = preg_replace('#' . $words . '#iu', "<span class=\"highlight\">\$0</span>", $entity->getExcerpt(100));
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$entity->searchSnippet = $result;
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}
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return $entities;
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}
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/**
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* Find a suitable slug for an entity.
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* @param string $type
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* @param string $name
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* @param bool|integer $currentId
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* @param bool|integer $bookId Only pass if type is not a book
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* @return string
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*/
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public function findSuitableSlug($type, $name, $currentId = false, $bookId = false)
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{
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$slug = $this->nameToSlug($name);
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while ($this->slugExists($type, $slug, $currentId, $bookId)) {
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$slug .= '-' . substr(md5(rand(1, 500)), 0, 3);
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}
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return $slug;
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}
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/**
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* Check if a slug already exists in the database.
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* @param string $type
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* @param string $slug
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* @param bool|integer $currentId
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* @param bool|integer $bookId
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* @return bool
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*/
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protected function slugExists($type, $slug, $currentId = false, $bookId = false)
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{
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$query = $this->getEntity($type)->where('slug', '=', $slug);
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if (strtolower($type) === 'page' || strtolower($type) === 'chapter') {
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$query = $query->where('book_id', '=', $bookId);
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}
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if ($currentId) $query = $query->where('id', '!=', $currentId);
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return $query->count() > 0;
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}
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2016-03-05 14:00:26 -05:00
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/**
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* Updates entity restrictions from a request
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* @param $request
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* @param Entity $entity
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*/
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public function updateEntityPermissionsFromRequest($request, Entity $entity)
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2016-03-05 14:00:26 -05:00
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|
|
{
|
|
|
|
$entity->restricted = $request->has('restricted') && $request->get('restricted') === 'true';
|
2016-05-01 16:20:50 -04:00
|
|
|
$entity->permissions()->delete();
|
2016-03-05 14:00:26 -05:00
|
|
|
if ($request->has('restrictions')) {
|
|
|
|
foreach ($request->get('restrictions') as $roleId => $restrictions) {
|
|
|
|
foreach ($restrictions as $action => $value) {
|
2016-05-01 16:20:50 -04:00
|
|
|
$entity->permissions()->create([
|
2016-03-05 14:00:26 -05:00
|
|
|
'role_id' => $roleId,
|
2016-03-06 08:17:46 -05:00
|
|
|
'action' => strtolower($action)
|
2016-03-05 14:00:26 -05:00
|
|
|
]);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
$entity->save();
|
2016-05-01 16:20:50 -04:00
|
|
|
$this->permissionService->buildJointPermissionsForEntity($entity);
|
2016-03-05 14:00:26 -05:00
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Prepare a string of search terms by turning
|
|
|
|
* it into an array of terms.
|
|
|
|
* Keeps quoted terms together.
|
|
|
|
* @param $termString
|
|
|
|
* @return array
|
|
|
|
*/
|
2016-08-25 12:17:26 -04:00
|
|
|
public function prepareSearchTerms($termString)
|
2016-03-05 14:00:26 -05:00
|
|
|
{
|
2016-05-15 08:41:18 -04:00
|
|
|
$termString = $this->cleanSearchTermString($termString);
|
2016-08-25 12:17:26 -04:00
|
|
|
preg_match_all('/(".*?")/', $termString, $matches);
|
|
|
|
$terms = [];
|
2016-03-05 14:00:26 -05:00
|
|
|
if (count($matches[1]) > 0) {
|
2016-08-25 12:17:26 -04:00
|
|
|
foreach ($matches[1] as $match) {
|
|
|
|
$terms[] = $match;
|
|
|
|
}
|
2016-03-05 14:00:26 -05:00
|
|
|
$termString = trim(preg_replace('/"(.*?)"/', '', $termString));
|
|
|
|
}
|
|
|
|
if (!empty($termString)) $terms = array_merge($terms, explode(' ', $termString));
|
|
|
|
return $terms;
|
2016-02-20 07:37:06 -05:00
|
|
|
}
|
|
|
|
|
2016-05-15 08:41:18 -04:00
|
|
|
/**
|
|
|
|
* Removes any special search notation that should not
|
|
|
|
* be used in a full-text search.
|
|
|
|
* @param $termString
|
|
|
|
* @return mixed
|
|
|
|
*/
|
|
|
|
protected function cleanSearchTermString($termString)
|
|
|
|
{
|
|
|
|
// Strip tag searches
|
|
|
|
$termString = preg_replace('/\[.*?\]/', '', $termString);
|
|
|
|
// Reduced multiple spacing into single spacing
|
|
|
|
$termString = preg_replace("/\s{2,}/", " ", $termString);
|
|
|
|
return $termString;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Get the available query operators as a regex escaped list.
|
|
|
|
* @return mixed
|
|
|
|
*/
|
|
|
|
protected function getRegexEscapedOperators()
|
|
|
|
{
|
|
|
|
$escapedOperators = [];
|
|
|
|
foreach ($this->queryOperators as $operator) {
|
|
|
|
$escapedOperators[] = preg_quote($operator);
|
|
|
|
}
|
|
|
|
return join('|', $escapedOperators);
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Parses advanced search notations and adds them to the db query.
|
|
|
|
* @param $query
|
|
|
|
* @param $termString
|
|
|
|
* @return mixed
|
|
|
|
*/
|
|
|
|
protected function addAdvancedSearchQueries($query, $termString)
|
|
|
|
{
|
|
|
|
$escapedOperators = $this->getRegexEscapedOperators();
|
|
|
|
// Look for tag searches
|
|
|
|
preg_match_all("/\[(.*?)((${escapedOperators})(.*?))?\]/", $termString, $tags);
|
|
|
|
if (count($tags[0]) > 0) {
|
|
|
|
$this->applyTagSearches($query, $tags);
|
|
|
|
}
|
|
|
|
|
|
|
|
return $query;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Apply extracted tag search terms onto a entity query.
|
|
|
|
* @param $query
|
|
|
|
* @param $tags
|
|
|
|
* @return mixed
|
|
|
|
*/
|
|
|
|
protected function applyTagSearches($query, $tags) {
|
|
|
|
$query->where(function($query) use ($tags) {
|
|
|
|
foreach ($tags[1] as $index => $tagName) {
|
|
|
|
$query->whereHas('tags', function($query) use ($tags, $index, $tagName) {
|
|
|
|
$tagOperator = $tags[3][$index];
|
|
|
|
$tagValue = $tags[4][$index];
|
|
|
|
if (!empty($tagOperator) && !empty($tagValue) && in_array($tagOperator, $this->queryOperators)) {
|
|
|
|
if (is_numeric($tagValue) && $tagOperator !== 'like') {
|
|
|
|
// We have to do a raw sql query for this since otherwise PDO will quote the value and MySQL will
|
|
|
|
// search the value as a string which prevents being able to do number-based operations
|
|
|
|
// on the tag values. We ensure it has a numeric value and then cast it just to be sure.
|
|
|
|
$tagValue = (float) trim($query->getConnection()->getPdo()->quote($tagValue), "'");
|
|
|
|
$query->where('name', '=', $tagName)->whereRaw("value ${tagOperator} ${tagValue}");
|
|
|
|
} else {
|
|
|
|
$query->where('name', '=', $tagName)->where('value', $tagOperator, $tagValue);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
$query->where('name', '=', $tagName);
|
|
|
|
}
|
|
|
|
});
|
|
|
|
}
|
|
|
|
});
|
|
|
|
return $query;
|
|
|
|
}
|
|
|
|
|
2016-08-26 15:20:58 -04:00
|
|
|
/**
|
|
|
|
* Alias method to update the book jointPermissions in the PermissionService.
|
|
|
|
* @param Collection $collection collection on entities
|
|
|
|
*/
|
|
|
|
public function buildJointPermissions(Collection $collection)
|
|
|
|
{
|
|
|
|
$this->permissionService->buildJointPermissionsForEntities($collection);
|
|
|
|
}
|
|
|
|
|
2016-11-12 12:16:52 -05:00
|
|
|
/**
|
|
|
|
* Format a name as a url slug.
|
|
|
|
* @param $name
|
|
|
|
* @return string
|
|
|
|
*/
|
|
|
|
protected function nameToSlug($name)
|
|
|
|
{
|
|
|
|
$slug = str_replace(' ', '-', strtolower($name));
|
|
|
|
$slug = preg_replace('/[\+\/\\\?\@\}\{\.\,\=\[\]\#\&\!\*\'\;\:\$\%]/', '', $slug);
|
|
|
|
if ($slug === "") $slug = substr(md5(rand(1, 500)), 0, 5);
|
|
|
|
return $slug;
|
|
|
|
}
|
|
|
|
|
2016-05-15 08:41:18 -04:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2016-02-20 07:37:06 -05:00
|
|
|
|