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<?php |
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namespace Colligator; |
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use Illuminate\Database\Eloquent\Model; |
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class Cover extends Model |
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{ |
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/** |
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* Default thumbnail height. |
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* |
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* @var array |
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*/ |
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public $defaultThumbHeight = 600; |
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/** |
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* The attributes that should be visible in arrays. |
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* |
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* @var array |
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*/ |
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protected $visible = ['url', 'cached', 'thumb', 'created', 'modified']; |
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/** |
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* The accessors to append to the model's array form. |
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* |
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* @var array |
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*/ |
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protected $appends = ['cached', 'thumb', 'created', 'modified']; |
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/** |
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* The attributes that are mass assignable. |
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* |
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* @var array |
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*/ |
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protected $fillable = ['document_id', 'url']; |
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/** |
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* The document the cover belongs to. |
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* |
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* @return Document |
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*/ |
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public function document() |
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{ |
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return $this->belongsTo('Colligator\Document'); |
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} |
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/** |
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* Returns the URL to the cached image. |
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* |
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* @return array |
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*/ |
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public function getCachedAttribute() |
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{ |
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return [ |
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'url' => \CoverCache::url($this->cache_key), |
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'width' => $this->width, |
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'height' => $this->height, |
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]; |
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} |
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/** |
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* Get date part of ISO date-time |
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*/ |
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public function getCreatedAttribute() |
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{ |
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return isset($this->created_at) ? substr($this->created_at, 0, 10) : null; |
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} |
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/** |
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* Get date part of ISO date-time |
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*/ |
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public function getModifiedAttribute() |
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{ |
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return isset($this->modified_at) ? substr($this->modified_at, 0, 10) : null; |
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} |
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/** |
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* Returns the URL to the cached thumb image. |
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* |
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* @return array |
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*/ |
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public function getThumbAttribute() |
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{ |
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return !is_null($this->thumb_key) ? [ |
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'url' => \CoverCache::url($this->thumb_key), |
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'width' => $this->thumb_width, |
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'height' => $this->thumb_height, |
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] : $this->cached; |
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} |
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/** |
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* Invalidate cache. |
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*/ |
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public function invalidateCache() |
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{ |
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if (!is_null($this->width) && !is_null($this->height)) { |
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\Log::debug('[Cover] Invalidating cache. Old version was ' . $this->width . ' x ' . $this->height); |
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} |
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$this->width = null; |
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$this->height = null; |
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$this->cache_key = null; |
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$this->thumb_width = null; |
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$this->thumb_height = null; |
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$this->thumb_key = null; |
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} |
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/** |
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* Mutuator for the url attribute. Invalidates cache when the paramter changes. |
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* |
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* @param $value |
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*/ |
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public function setUrlAttribute($value) |
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{ |
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if (array_get($this->attributes, 'url') == $value) { |
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return; |
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} |
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$this->attributes['url'] = $value; |
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$this->invalidateCache(); |
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} |
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/** |
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* Checks if the cover is cached. |
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* |
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* @return bool |
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*/ |
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public function isCached() |
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{ |
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return !is_null($this->width); |
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} |
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/** |
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* Cache the cover and create thumbnail. |
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* |
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* @throws \ErrorException |
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*/ |
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public function cache($blob = null) |
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{ |
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if (is_null($blob) && !isset($this->url)) { |
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throw new \ErrorException('[Cover] Cannot cache when no URL or blob is set.'); |
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} |
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if ($this->isCached()) { |
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\Log::debug('[Cover] Already cached'); |
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return; |
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} |
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if (!is_null($blob)) { |
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\Log::debug('[Cover] Add to cache from blob'); |
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$orig = \CoverCache::putBlob($blob); |
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} else { |
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\Log::debug('[Cover] Add to cache from url: ' . $this->url); |
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$orig = \CoverCache::putUrl($this->url); |
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} |
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$this->width = $orig->width(); |
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$this->height = $orig->height(); |
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$this->mime = $orig->mime(); |
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$this->cache_key = $orig->cacheKey; |
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if ($orig->height() > $this->defaultThumbHeight) { |
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\Log::debug("[Cover] Making cover thumbnail since height exceeds {$this->defaultThumbHeight}px"); |
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$thumb = $orig->thumb($this->defaultThumbHeight); |
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$this->thumb_width = $thumb->width(); |
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$this->thumb_height = $thumb->height(); |
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$this->thumb_key = $thumb->cacheKey; |
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} |
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} |
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} |
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scriptotek /
colligator-backend
