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<?php |
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namespace Epesi\FileStorage\Database\Models; |
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use Illuminate\Database\Eloquent\Model; |
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use Illuminate\Support\Facades\Storage; |
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class WriteError extends \Exception {} |
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class FileContent extends Model { |
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const HASH_METHOD = 'sha512'; |
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public $timestamps = false; |
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protected $table = 'filestorage_contents'; |
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protected static $unguarded = true; |
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protected $appends = ['path']; |
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/** |
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* One content can have many files associated with |
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* The actual content is stored only once based on the content hash |
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* |
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* @return \Illuminate\Database\Eloquent\Relations\HasMany |
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*/ |
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public function files() |
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{ |
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return $this->hasMany(File::class, 'content_id'); |
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} |
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/** |
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* Accessor method for retrieving of file content path when using the model |
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* Having the $appends property in the File model listing the 'path' makes sure the value is also exported to arrays |
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* |
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* @return string |
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*/ |
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public function getPathAttribute() |
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{ |
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return self::storage()->path($this->getStoragePath($this->hash)); |
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} |
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/** |
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* Accessor method for retrieving of file contents |
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* |
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* @return string |
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*/ |
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public function getDataAttribute() |
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{ |
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return self::storage()->get($this->storage_path); |
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} |
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/** |
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* Accessor method for file relative storage path |
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* |
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* @return string |
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*/ |
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public function getStoragePathAttribute() |
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{ |
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return $this->getStoragePath($this->hash); |
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} |
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protected static function getStoragePath($hash) |
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{ |
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return implode(DIRECTORY_SEPARATOR, array_merge(str_split(substr($hash, 0, 5)), [substr($hash, 5)])); |
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} |
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/** |
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* Returns the storage where file contents are saved based on config settings |
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* |
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* @return \Illuminate\Contracts\Filesystem\Filesystem |
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*/ |
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public static function storage() |
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{ |
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return Storage::disk(config('epesi.filestorage', 'local')); |
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} |
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/** |
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* Add file to the filestorage |
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* |
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* @param string $file File path to save |
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* |
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* @return int File id in the database |
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*/ |
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public static function putFromFile($file) |
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{ |
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return self::put(file_get_contents($file)); |
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} |
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/** |
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* Add content to the filestorage |
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* |
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* @param string $content Content to save |
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* |
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* @return int File id in the database |
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*/ |
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public static function put($content) |
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{ |
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$hash = self::hash($content); |
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$path = self::getStoragePath($hash); |
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if (! self::storage()->exists($path)) { |
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self::storage()->put($path, $content); |
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} |
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return self::firstOrCreate(compact('hash'), [ |
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'size' => self::storage()->size($path), |
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'type' => self::storage()->mimeType($path) |
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])->id; |
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} |
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/** |
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* Get the hash of the content using hash method defined as constant to the class |
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* |
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* @param string $content |
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* @return string |
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*/ |
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public static function hash($content) |
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{ |
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return hash(self::HASH_METHOD, $content); |
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} |
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} |
x-systems /
epesi-filestorage
