135 lines
3.6 KiB
PHP
135 lines
3.6 KiB
PHP
<?php namespace BookStack\Entities\Models;
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use BookStack\Entities\Models\Bookshelf;
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use BookStack\Entities\Models\Chapter;
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use BookStack\Entities\Models\Entity;
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use BookStack\Entities\Models\HasCoverImage;
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use BookStack\Entities\Models\Page;
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use BookStack\Uploads\Image;
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use Exception;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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use Illuminate\Database\Eloquent\Relations\BelongsToMany;
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use Illuminate\Database\Eloquent\Relations\HasMany;
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use Illuminate\Support\Collection;
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/**
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* Class Book
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* @property string $description
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* @property int $image_id
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* @property Image|null $cover
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*/
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class Book extends Entity implements HasCoverImage
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{
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public $searchFactor = 2;
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protected $fillable = ['name', 'description'];
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protected $hidden = ['restricted', 'pivot', 'image_id'];
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/**
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* Get the url for this book.
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* @param string|bool $path
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* @return string
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*/
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public function getUrl($path = false)
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{
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if ($path !== false) {
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return url('/books/' . urlencode($this->slug) . '/' . trim($path, '/'));
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}
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return url('/books/' . urlencode($this->slug));
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}
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/**
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* Returns book cover image, if book cover not exists return default cover image.
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* @param int $width - Width of the image
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* @param int $height - Height of the image
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* @return string
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*/
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public function getBookCover($width = 440, $height = 250)
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{
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$default = 'data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==';
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if (!$this->image_id) {
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return $default;
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}
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try {
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$cover = $this->cover ? url($this->cover->getThumb($width, $height, false)) : $default;
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} catch (Exception $err) {
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$cover = $default;
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}
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return $cover;
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}
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/**
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* Get the cover image of the book
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*/
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public function cover(): BelongsTo
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{
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return $this->belongsTo(Image::class, 'image_id');
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}
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/**
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* Get the type of the image model that is used when storing a cover image.
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*/
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public function coverImageTypeKey(): string
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{
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return 'cover_book';
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}
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/**
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* Get all pages within this book.
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* @return HasMany
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*/
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public function pages()
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{
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return $this->hasMany(Page::class);
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}
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/**
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* Get the direct child pages of this book.
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* @return HasMany
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*/
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public function directPages()
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{
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return $this->pages()->where('chapter_id', '=', '0');
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}
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/**
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* Get all chapters within this book.
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* @return HasMany
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*/
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public function chapters()
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{
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return $this->hasMany(Chapter::class);
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}
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/**
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* Get the shelves this book is contained within.
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* @return BelongsToMany
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*/
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public function shelves()
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{
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return $this->belongsToMany(Bookshelf::class, 'bookshelves_books', 'book_id', 'bookshelf_id');
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}
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/**
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* Get the direct child items within this book.
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* @return Collection
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*/
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public function getDirectChildren(): Collection
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{
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$pages = $this->directPages()->visible()->get();
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$chapters = $this->chapters()->visible()->get();
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return $pages->concat($chapters)->sortBy('priority')->sortByDesc('draft');
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}
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/**
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* Get an excerpt of this book's description to the specified length or less.
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* @param int $length
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* @return string
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*/
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public function getExcerpt(int $length = 100)
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{
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$description = $this->description;
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return mb_strlen($description) > $length ? mb_substr($description, 0, $length-3) . '...' : $description;
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}
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}
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