3 namespace BookStack\Entities\Models;
5 use BookStack\Activity\Models\Activity;
6 use BookStack\Activity\Models\Comment;
7 use BookStack\Activity\Models\Favouritable;
8 use BookStack\Activity\Models\Favourite;
9 use BookStack\Activity\Models\Loggable;
10 use BookStack\Activity\Models\Tag;
11 use BookStack\Activity\Models\View;
12 use BookStack\Activity\Models\Viewable;
13 use BookStack\Activity\Models\Watch;
14 use BookStack\App\Model;
15 use BookStack\App\Sluggable;
16 use BookStack\Entities\Tools\SlugGenerator;
17 use BookStack\Permissions\JointPermissionBuilder;
18 use BookStack\Permissions\Models\EntityPermission;
19 use BookStack\Permissions\Models\JointPermission;
20 use BookStack\Permissions\PermissionApplicator;
21 use BookStack\References\Reference;
22 use BookStack\Search\SearchIndex;
23 use BookStack\Search\SearchTerm;
24 use BookStack\Users\Models\HasCreatorAndUpdater;
25 use BookStack\Users\Models\HasOwner;
27 use Illuminate\Database\Eloquent\Builder;
28 use Illuminate\Database\Eloquent\Collection;
29 use Illuminate\Database\Eloquent\Relations\MorphMany;
30 use Illuminate\Database\Eloquent\SoftDeletes;
34 * The base class for book-like items such as pages, chapters & books.
35 * This is not a database model in itself but extended.
38 * @property string $name
39 * @property string $slug
40 * @property Carbon $created_at
41 * @property Carbon $updated_at
42 * @property Carbon $deleted_at
43 * @property int $created_by
44 * @property int $updated_by
45 * @property Collection $tags
47 * @method static Entity|Builder visible()
48 * @method static Builder withLastView()
49 * @method static Builder withViewCount()
51 abstract class Entity extends Model implements Sluggable, Favouritable, Viewable, Deletable, Loggable
54 use HasCreatorAndUpdater;
58 * @var string - Name of property where the main text content is found
60 public $textField = 'description';
63 * @var float - Multiplier for search indexing.
65 public $searchFactor = 1.0;
68 * Get the entities that are visible to the current user.
70 public function scopeVisible(Builder $query): Builder
72 return app()->make(PermissionApplicator::class)->restrictEntityQuery($query);
76 * Query scope to get the last view from the current user.
78 public function scopeWithLastView(Builder $query)
80 $viewedAtQuery = View::query()->select('updated_at')
81 ->whereColumn('viewable_id', '=', $this->getTable() . '.id')
82 ->where('viewable_type', '=', $this->getMorphClass())
83 ->where('user_id', '=', user()->id)
86 return $query->addSelect(['last_viewed_at' => $viewedAtQuery]);
90 * Query scope to get the total view count of the entities.
92 public function scopeWithViewCount(Builder $query)
94 $viewCountQuery = View::query()->selectRaw('SUM(views) as view_count')
95 ->whereColumn('viewable_id', '=', $this->getTable() . '.id')
96 ->where('viewable_type', '=', $this->getMorphClass())->take(1);
98 $query->addSelect(['view_count' => $viewCountQuery]);
102 * Compares this entity to another given entity.
103 * Matches by comparing class and id.
105 public function matches(self $entity): bool
107 return [get_class($this), $this->id] === [get_class($entity), $entity->id];
111 * Checks if the current entity matches or contains the given.
113 public function matchesOrContains(self $entity): bool
115 if ($this->matches($entity)) {
119 if (($entity instanceof BookChild) && $this instanceof Book) {
120 return $entity->book_id === $this->id;
123 if ($entity instanceof Page && $this instanceof Chapter) {
124 return $entity->chapter_id === $this->id;
131 * Gets the activity objects for this entity.
133 public function activity(): MorphMany
135 return $this->morphMany(Activity::class, 'entity')
136 ->orderBy('created_at', 'desc');
140 * Get View objects for this entity.
142 public function views(): MorphMany
144 return $this->morphMany(View::class, 'viewable');
148 * Get the Tag models that have been user assigned to this entity.
150 public function tags(): MorphMany
152 return $this->morphMany(Tag::class, 'entity')->orderBy('order', 'asc');
156 * Get the comments for an entity.
158 public function comments(bool $orderByCreated = true): MorphMany
160 $query = $this->morphMany(Comment::class, 'entity');
162 return $orderByCreated ? $query->orderBy('created_at', 'asc') : $query;
166 * Get the related search terms.
168 public function searchTerms(): MorphMany
170 return $this->morphMany(SearchTerm::class, 'entity');
174 * Get this entities restrictions.
176 public function permissions(): MorphMany
178 return $this->morphMany(EntityPermission::class, 'entity');
182 * Check if this entity has a specific restriction set against it.
184 public function hasPermissions(): bool
186 return $this->permissions()->count() > 0;
190 * Get the entity jointPermissions this is connected to.
192 public function jointPermissions(): MorphMany
194 return $this->morphMany(JointPermission::class, 'entity');
198 * Get the related delete records for this entity.
200 public function deletions(): MorphMany
202 return $this->morphMany(Deletion::class, 'deletable');
206 * Get the references pointing from this entity to other items.
208 public function referencesFrom(): MorphMany
210 return $this->morphMany(Reference::class, 'from');
214 * Get the references pointing to this entity from other items.
216 public function referencesTo(): MorphMany
218 return $this->morphMany(Reference::class, 'to');
222 * Check if this instance or class is a certain type of entity.
223 * Examples of $type are 'page', 'book', 'chapter'.
225 * @deprecated Use instanceof instead.
227 public static function isA(string $type): bool
229 return static::getType() === strtolower($type);
233 * Get the entity type as a simple lowercase word.
235 public static function getType(): string
237 $className = array_slice(explode('\\', static::class), -1, 1)[0];
239 return strtolower($className);
243 * Gets a limited-length version of the entities name.
245 public function getShortName(int $length = 25): string
247 if (mb_strlen($this->name) <= $length) {
251 return mb_substr($this->name, 0, $length - 3) . '...';
255 * Get an excerpt of this entity's descriptive content to the specified length.
257 public function getExcerpt(int $length = 100): string
259 $text = $this->{$this->textField} ?? '';
261 if (mb_strlen($text) > $length) {
262 $text = mb_substr($text, 0, $length - 3) . '...';
269 * Get the url of this entity.
271 abstract public function getUrl(string $path = '/'): string;
274 * Get the parent entity if existing.
275 * This is the "static" parent and does not include dynamic
276 * relations such as shelves to books.
278 public function getParent(): ?self
280 if ($this instanceof Page) {
281 return $this->chapter_id ? $this->chapter()->withTrashed()->first() : $this->book()->withTrashed()->first();
283 if ($this instanceof Chapter) {
284 return $this->book()->withTrashed()->first();
291 * Rebuild the permissions for this entity.
293 public function rebuildPermissions()
295 app()->make(JointPermissionBuilder::class)->rebuildForEntity(clone $this);
299 * Index the current entity for search.
301 public function indexForSearch()
303 app()->make(SearchIndex::class)->indexEntity(clone $this);
309 public function refreshSlug(): string
311 $this->slug = app()->make(SlugGenerator::class)->generate($this);
319 public function favourites(): MorphMany
321 return $this->morphMany(Favourite::class, 'favouritable');
325 * Check if the entity is a favourite of the current user.
327 public function isFavourite(): bool
329 return $this->favourites()
330 ->where('user_id', '=', user()->id)
335 * Get the related watches for this entity.
337 public function watches(): MorphMany
339 return $this->morphMany(Watch::class, 'watchable');
345 public function logDescriptor(): string
347 return "({$this->id}) {$this->name}";