Complex classes like Uploadable often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Uploadable, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 20 | trait Uploadable |
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| 21 | { |
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| 22 | /** @var UploadOptions */ |
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| 23 | protected $uploadOptions; |
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| 24 | |||
| 25 | /** |
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| 26 | * Boot the trait. |
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| 27 | */ |
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| 28 | public static function bootUploadable() |
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| 63 | |||
| 64 | /** |
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| 65 | * Retrive a specifice UploadOptions for this model, or return default UploadOptions |
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| 66 | * @return UploadOptions |
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| 67 | */ |
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| 68 | public function getUploadOptionsOrDefault() : UploadOptions |
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| 84 | |||
| 85 | /** |
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| 86 | * This function will throw an exception when any of the options is missing or invalid. |
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| 87 | * @throws InvalidOption |
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| 88 | */ |
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| 89 | public function guardAgainstInvalidUploadOptions() |
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| 98 | |||
| 99 | /** |
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| 100 | * Handle file upload. |
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| 101 | */ |
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| 102 | public function uploadFiles() |
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| 119 | |||
| 120 | /** |
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| 121 | * Upload a file releted to a passed attribute name |
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| 122 | * @param string $uploadField |
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| 123 | */ |
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| 124 | public function uploadFile(string $uploadField) |
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| 142 | |||
| 143 | /** |
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| 144 | * Get an UploadedFile, generate new name, and save it in destination path. |
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| 145 | * Return empty string if it fails, otherwise return the saved file name. |
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| 146 | * @param UploadedFile $uploadedFile |
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| 147 | * @param string $uploadAttribute |
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| 148 | * @return string |
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| 149 | */ |
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| 150 | public function doUpload(UploadedFile $uploadedFile, $uploadAttribute) : string |
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| 175 | |||
| 176 | /** |
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| 177 | * Check request for valid files and server for correct paths defined in model |
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| 178 | * @return bool |
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| 179 | */ |
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| 180 | protected function requestHasValidFilesAndCorrectPaths() : bool |
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| 194 | |||
| 195 | /** |
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| 196 | * Generate a new file name for uploaded file. |
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| 197 | * Return empty string if uploadedFile is null, otherwise return the new file name.. |
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| 198 | * @param UploadedFile $uploadedFile |
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| 199 | * @param string $uploadField |
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| 200 | * @return string |
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| 201 | */ |
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| 202 | public function generateNewUploadFileName(UploadedFile $uploadedFile, string $uploadField) : string |
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| 220 | |||
| 221 | /** |
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| 222 | * Check if file need a new name and return it, otherwise return empty string. |
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| 223 | * @param UploadedFile $uploadedFile |
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| 224 | * @return string |
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| 225 | */ |
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| 226 | protected function calcolateNewUploadFileName(UploadedFile $uploadedFile) : string |
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| 239 | |||
| 240 | /** |
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| 241 | * delete all Uploaded Files |
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| 242 | */ |
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| 243 | public function deleteUploadedFiles() |
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| 250 | |||
| 251 | /** |
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| 252 | * Delete upload file related to passed attribute name |
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| 253 | * @param string $uploadField |
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| 254 | */ |
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| 255 | public function deleteUploadedFile(string $uploadField) |
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| 275 | |||
| 276 | /** |
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| 277 | * Reset model attribute and update db field |
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| 278 | * @param string $uploadField |
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| 279 | */ |
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| 280 | protected function setBlanckAttributeAndDB(string $uploadField) |
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| 290 | |||
| 291 | /** |
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| 292 | * Return true If All Upload atrributes Are Empty or |
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| 293 | * if the uploads array is not set. |
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| 294 | * @return bool |
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| 295 | */ |
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| 296 | public function checkIfAllUploadFieldsAreEmpty() : bool |
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| 307 | |||
| 308 | /** |
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| 309 | * Check all attributes upload path, and try to create dir if not already exists. |
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| 310 | * Return false if it fails to create all founded dirs. |
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| 311 | * @return bool |
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| 312 | */ |
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| 313 | public function checkOrCreateAllUploadBasePaths() : bool |
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| 323 | |||
| 324 | /** |
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| 325 | * Check uploads property and return a uploads class field |
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| 326 | * or empty array if somethings wrong. |
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| 327 | * @return array |
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| 328 | */ |
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| 329 | public function getUploadsAttributesSafe() : array |
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| 337 | |||
| 338 | /** |
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| 339 | * Check attribute upload path, and try to create dir if not already exists. |
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| 340 | * Return false if it fails to create the dir. |
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| 341 | * @param string $uploadField |
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| 342 | * @return bool |
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| 343 | */ |
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| 344 | public function checkOrCreateUploadBasePath(string $uploadField) : bool |
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| 351 | |||
| 352 | /** |
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| 353 | * Return the upload path for the passed attribute and try to create it if not exists. |
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| 354 | * Returns empty string if dir if not exists and fails to create it. |
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| 355 | * @param string $uploadField |
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| 356 | * @return string |
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| 357 | */ |
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| 358 | public function getUploadFileBasePath(string $uploadField) : string |
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| 378 | |||
| 379 | /** |
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| 380 | * Return the specific upload path (by uploadPaths prop) for the passed attribute if exists, otherwise return empty string. |
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| 381 | * @param string $uploadField |
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| 382 | * @return string |
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| 383 | */ |
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| 384 | public function getUploadFileBasePathSpecific(string $uploadField) : string |
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| 395 | |||
| 396 | /** |
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| 397 | * Return the full (path+filename) upload abs path for the passed attribute. |
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| 398 | * Returns empty string if dir if not exists. |
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| 399 | * @param string $uploadField |
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| 400 | * @return string |
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| 401 | */ |
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| 402 | public function getUploadFileFullPath(string $uploadField) : string |
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| 413 | |||
| 414 | /** |
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| 415 | * Return the full url (base url + filename) for the passed attribute. |
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| 416 | * Returns empty string if dir if not exists. |
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| 417 | * Ex.: http://localhost/laravel/public/upload/news/pippo.jpg |
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| 418 | * @param string $uploadField |
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| 419 | * @return string |
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| 420 | */ |
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| 421 | public function getUploadFileUrl(string $uploadField) : string |
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| 429 | |||
| 430 | /** |
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| 431 | * get a path and remove public_path. |
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| 432 | * @param string $path |
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| 433 | * @return string |
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| 434 | */ |
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| 435 | public function removePublicPath(string $path) : string |
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| 448 | |||
| 449 | /** |
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| 450 | * Return the base url (without filename) for the passed attribute. |
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| 451 | * Returns empty string if dir if not exists. |
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| 452 | * Ex.: http://localhost/laravel/public/upload/ |
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| 453 | * @param string $uploadField |
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| 454 | * @return string |
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| 455 | */ |
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| 456 | public function getUploadFileBaseUrl(string $uploadField) : string |
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| 468 | |||
| 469 | /** |
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| 470 | * Calcolate the new name for ALL uploaded files and set relative upload attributes |
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| 471 | */ |
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| 472 | public function generateAllNewUploadFileNameAndSetAttribute() |
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| 478 | |||
| 479 | /** |
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| 480 | * Calcolate the new name for uploaded file relative to passed attribute name and set the upload attribute |
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| 481 | * @param string $uploadField |
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| 482 | */ |
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| 483 | public function generateNewUploadFileNameAndSetAttribute(string $uploadField) |
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| 502 | } |
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| 503 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.