mirror of
https://github.com/BookStackApp/BookStack.git
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341 lines
9.0 KiB
PHP
341 lines
9.0 KiB
PHP
<?php
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namespace BookStack\Entities\Models;
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use BookStack\Activity\Models\Activity;
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use BookStack\Activity\Models\Comment;
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use BookStack\Activity\Models\Favouritable;
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use BookStack\Activity\Models\Favourite;
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use BookStack\Activity\Models\Loggable;
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use BookStack\Activity\Models\Tag;
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use BookStack\Activity\Models\View;
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use BookStack\Activity\Models\Viewable;
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use BookStack\App\Model;
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use BookStack\App\Sluggable;
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use BookStack\Entities\Tools\SlugGenerator;
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use BookStack\Permissions\JointPermissionBuilder;
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use BookStack\Permissions\Models\EntityPermission;
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use BookStack\Permissions\Models\JointPermission;
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use BookStack\Permissions\PermissionApplicator;
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use BookStack\References\Reference;
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use BookStack\Search\SearchIndex;
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use BookStack\Search\SearchTerm;
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use BookStack\Users\Models\HasCreatorAndUpdater;
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use BookStack\Users\Models\HasOwner;
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use Carbon\Carbon;
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use Illuminate\Database\Eloquent\Builder;
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use Illuminate\Database\Eloquent\Collection;
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use Illuminate\Database\Eloquent\Relations\MorphMany;
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use Illuminate\Database\Eloquent\SoftDeletes;
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/**
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* Class Entity
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* The base class for book-like items such as pages, chapters & books.
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* This is not a database model in itself but extended.
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*
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* @property int $id
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* @property string $name
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* @property string $slug
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* @property Carbon $created_at
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* @property Carbon $updated_at
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* @property Carbon $deleted_at
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* @property int $created_by
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* @property int $updated_by
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* @property Collection $tags
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*
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* @method static Entity|Builder visible()
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* @method static Builder withLastView()
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* @method static Builder withViewCount()
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*/
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abstract class Entity extends Model implements Sluggable, Favouritable, Viewable, Deletable, Loggable
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{
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use SoftDeletes;
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use HasCreatorAndUpdater;
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use HasOwner;
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/**
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* @var string - Name of property where the main text content is found
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*/
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public $textField = 'description';
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/**
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* @var float - Multiplier for search indexing.
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*/
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public $searchFactor = 1.0;
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/**
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* Get the entities that are visible to the current user.
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*/
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public function scopeVisible(Builder $query): Builder
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{
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return app()->make(PermissionApplicator::class)->restrictEntityQuery($query);
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}
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/**
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* Query scope to get the last view from the current user.
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*/
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public function scopeWithLastView(Builder $query)
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{
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$viewedAtQuery = View::query()->select('updated_at')
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->whereColumn('viewable_id', '=', $this->getTable() . '.id')
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->where('viewable_type', '=', $this->getMorphClass())
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->where('user_id', '=', user()->id)
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->take(1);
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return $query->addSelect(['last_viewed_at' => $viewedAtQuery]);
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}
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/**
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* Query scope to get the total view count of the entities.
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*/
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public function scopeWithViewCount(Builder $query)
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{
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$viewCountQuery = View::query()->selectRaw('SUM(views) as view_count')
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->whereColumn('viewable_id', '=', $this->getTable() . '.id')
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->where('viewable_type', '=', $this->getMorphClass())->take(1);
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$query->addSelect(['view_count' => $viewCountQuery]);
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}
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/**
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* Compares this entity to another given entity.
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* Matches by comparing class and id.
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*/
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public function matches(self $entity): bool
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{
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return [get_class($this), $this->id] === [get_class($entity), $entity->id];
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}
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/**
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* Checks if the current entity matches or contains the given.
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*/
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public function matchesOrContains(self $entity): bool
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{
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if ($this->matches($entity)) {
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return true;
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}
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if (($entity instanceof BookChild) && $this instanceof Book) {
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return $entity->book_id === $this->id;
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}
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if ($entity instanceof Page && $this instanceof Chapter) {
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return $entity->chapter_id === $this->id;
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}
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return false;
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}
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/**
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* Gets the activity objects for this entity.
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*/
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public function activity(): MorphMany
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{
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return $this->morphMany(Activity::class, 'entity')
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->orderBy('created_at', 'desc');
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}
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/**
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* Get View objects for this entity.
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*/
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public function views(): MorphMany
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{
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return $this->morphMany(View::class, 'viewable');
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}
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/**
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* Get the Tag models that have been user assigned to this entity.
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*/
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public function tags(): MorphMany
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{
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return $this->morphMany(Tag::class, 'entity')->orderBy('order', 'asc');
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}
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/**
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* Get the comments for an entity.
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*/
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public function comments(bool $orderByCreated = true): MorphMany
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{
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$query = $this->morphMany(Comment::class, 'entity');
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return $orderByCreated ? $query->orderBy('created_at', 'asc') : $query;
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}
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/**
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* Get the related search terms.
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*/
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public function searchTerms(): MorphMany
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{
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return $this->morphMany(SearchTerm::class, 'entity');
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}
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/**
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* Get this entities restrictions.
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*/
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public function permissions(): MorphMany
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{
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return $this->morphMany(EntityPermission::class, 'entity');
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}
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/**
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* Check if this entity has a specific restriction set against it.
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*/
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public function hasPermissions(): bool
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{
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return $this->permissions()->count() > 0;
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}
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/**
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* Get the entity jointPermissions this is connected to.
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*/
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public function jointPermissions(): MorphMany
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{
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return $this->morphMany(JointPermission::class, 'entity');
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}
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/**
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* Get the related delete records for this entity.
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*/
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public function deletions(): MorphMany
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{
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return $this->morphMany(Deletion::class, 'deletable');
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}
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/**
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* Get the references pointing from this entity to other items.
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*/
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public function referencesFrom(): MorphMany
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{
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return $this->morphMany(Reference::class, 'from');
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}
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/**
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* Get the references pointing to this entity from other items.
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*/
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public function referencesTo(): MorphMany
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{
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return $this->morphMany(Reference::class, 'to');
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}
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/**
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* Check if this instance or class is a certain type of entity.
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* Examples of $type are 'page', 'book', 'chapter'.
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*
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* @deprecated Use instanceof instead.
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*/
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public static function isA(string $type): bool
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{
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return static::getType() === strtolower($type);
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}
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/**
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* Get the entity type as a simple lowercase word.
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*/
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public static function getType(): string
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{
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$className = array_slice(explode('\\', static::class), -1, 1)[0];
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return strtolower($className);
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}
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/**
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* Gets a limited-length version of the entities name.
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*/
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public function getShortName(int $length = 25): string
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{
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if (mb_strlen($this->name) <= $length) {
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return $this->name;
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}
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return mb_substr($this->name, 0, $length - 3) . '...';
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}
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/**
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* Get an excerpt of this entity's descriptive content to the specified length.
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*/
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public function getExcerpt(int $length = 100): string
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{
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$text = $this->{$this->textField} ?? '';
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if (mb_strlen($text) > $length) {
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$text = mb_substr($text, 0, $length - 3) . '...';
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}
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return trim($text);
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}
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/**
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* Get the url of this entity.
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*/
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abstract public function getUrl(string $path = '/'): string;
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/**
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* Get the parent entity if existing.
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* This is the "static" parent and does not include dynamic
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* relations such as shelves to books.
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*/
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public function getParent(): ?self
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{
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if ($this instanceof Page) {
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return $this->chapter_id ? $this->chapter()->withTrashed()->first() : $this->book()->withTrashed()->first();
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}
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if ($this instanceof Chapter) {
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return $this->book()->withTrashed()->first();
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}
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return null;
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}
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/**
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* Rebuild the permissions for this entity.
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*/
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public function rebuildPermissions()
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{
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app()->make(JointPermissionBuilder::class)->rebuildForEntity(clone $this);
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}
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/**
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* Index the current entity for search.
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*/
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public function indexForSearch()
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{
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app()->make(SearchIndex::class)->indexEntity(clone $this);
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}
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/**
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* {@inheritdoc}
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*/
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public function refreshSlug(): string
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{
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$this->slug = app()->make(SlugGenerator::class)->generate($this);
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return $this->slug;
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}
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/**
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* {@inheritdoc}
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*/
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public function favourites(): MorphMany
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{
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return $this->morphMany(Favourite::class, 'favouritable');
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}
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/**
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* Check if the entity is a favourite of the current user.
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*/
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public function isFavourite(): bool
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{
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return $this->favourites()
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->where('user_id', '=', user()->id)
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->exists();
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}
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/**
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* {@inheritdoc}
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*/
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public function logDescriptor(): string
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{
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return "({$this->id}) {$this->name}";
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}
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}
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