307fae39c4
For book, shelves and chapters. Made much of the existing handling generic to entity types. Added new MixedEntityListLoader to help load lists somewhat efficiently. Only manually tested so far.
354 lines
9.3 KiB
PHP
354 lines
9.3 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\Activity\Models\Watch;
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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 string $textField = 'description';
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/**
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* @var string - Name of the property where the main HTML content is found
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*/
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public string $htmlField = 'description_html';
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/**
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* @var float - Multiplier for search indexing.
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*/
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public float $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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* Get the related watches for this entity.
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*/
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public function watches(): MorphMany
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{
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return $this->morphMany(Watch::class, 'watchable');
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}
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/**
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* {@inheritdoc}
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*/
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public function logDescriptor(): string
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{
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return "({$this->id}) {$this->name}";
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}
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}
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