Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like Model 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 Model, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 26 | abstract class Model extends Component |
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| 27 | { |
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| 28 | |||
| 29 | use traits\Model; |
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| 30 | |||
| 31 | /** |
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| 32 | * @var BaseModel[] |
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| 33 | */ |
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| 34 | protected $_cacheAll; |
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| 35 | |||
| 36 | |||
| 37 | /******************************************* |
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| 38 | * MODEL CLASSES |
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| 39 | *******************************************/ |
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| 40 | |||
| 41 | /** |
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| 42 | * @return string |
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| 43 | */ |
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| 44 | public abstract static function modelClass(): string; |
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| 45 | |||
| 46 | /** |
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| 47 | * @return string |
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| 48 | */ |
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| 49 | public static function modelClassInstance(): string |
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| 53 | |||
| 54 | /******************************************* |
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| 55 | * CREATE |
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| 56 | *******************************************/ |
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| 57 | |||
| 58 | /** |
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| 59 | * @param array $config |
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| 60 | * @param string|null $toScenario |
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| 61 | * @throws InvalidConfigException |
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| 62 | * @return BaseModel |
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| 63 | */ |
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| 64 | View Code Duplication | public function create($config = [], string $toScenario = null): BaseModel |
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| 87 | |||
| 88 | /** |
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| 89 | * @param Record $record |
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| 90 | * @param string|null $toScenario |
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| 91 | * @throws InvalidConfigException |
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| 92 | * @return BaseModel |
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| 93 | */ |
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| 94 | protected function createFromRecord(Record $record, string $toScenario = null): BaseModel |
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| 113 | |||
| 114 | /******************************************* |
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| 115 | * FIND/GET ALL |
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| 116 | *******************************************/ |
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| 117 | |||
| 118 | /** |
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| 119 | * @param string $toScenario |
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| 120 | * @return BaseModel[] |
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| 121 | */ |
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| 122 | View Code Duplication | public function findAll(string $toScenario = null) |
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| 146 | |||
| 147 | /** |
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| 148 | * @param string $toScenario |
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| 149 | * @return BaseModel[] |
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| 150 | * @throws ModelNotFoundException |
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| 151 | */ |
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| 152 | public function getAll(string $toScenario = null): array |
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| 164 | |||
| 165 | /******************************************* |
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| 166 | * FIND/GET |
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| 167 | *******************************************/ |
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| 168 | |||
| 169 | /** |
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| 170 | * @param $identifier |
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| 171 | * @param string $toScenario |
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| 172 | * @return BaseModel|null |
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| 173 | */ |
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| 174 | public function find($identifier, string $toScenario = null) |
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| 196 | |||
| 197 | /** |
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| 198 | * @param $identifier |
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| 199 | * @param string $toScenario |
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| 200 | * @return BaseModel |
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| 201 | * @throws ModelNotFoundException |
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| 202 | */ |
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| 203 | public function get($identifier, string $toScenario = null): BaseModel |
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| 216 | |||
| 217 | /******************************************* |
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| 218 | * FIND/GET BY QUERY |
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| 219 | *******************************************/ |
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| 220 | |||
| 221 | /** |
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| 222 | * @param QueryInterface $query |
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| 223 | * @param string $toScenario |
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| 224 | * @return BaseModel[] |
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| 225 | */ |
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| 226 | View Code Duplication | public function findAllByQuery(QueryInterface $query, string $toScenario = null): array |
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| 238 | |||
| 239 | /** |
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| 240 | * @param QueryInterface $query |
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| 241 | * @param string $toScenario |
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| 242 | * @return BaseModel|null |
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| 243 | */ |
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| 244 | View Code Duplication | public function findByQuery(QueryInterface $query, string $toScenario = null) |
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| 255 | |||
| 256 | /******************************************* |
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| 257 | * FIND/GET BY CONDITION |
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| 258 | *******************************************/ |
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| 259 | |||
| 260 | /** |
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| 261 | * @param $condition |
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| 262 | * @param string $toScenario |
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| 263 | * @return BaseModel[] |
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| 264 | */ |
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| 265 | public function findAllByCondition($condition, string $toScenario = null): array |
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| 282 | |||
| 283 | /** |
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| 284 | * @param $condition |
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| 285 | * @param string $toScenario |
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| 286 | * @return BaseModel[] |
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| 287 | * @throws ModelNotFoundException |
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| 288 | */ |
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| 289 | public function getAllByCondition($condition, string $toScenario = null): array |
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| 301 | |||
| 302 | /** |
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| 303 | * @param $condition |
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| 304 | * @param string $toScenario |
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| 305 | * @return BaseModel|null |
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| 306 | */ |
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| 307 | View Code Duplication | public function findByCondition($condition, string $toScenario = null) |
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| 318 | |||
| 319 | /** |
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| 320 | * @param $condition |
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| 321 | * @param string $toScenario |
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| 322 | * @return BaseModel |
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| 323 | * @throws ModelNotFoundException |
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| 324 | */ |
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| 325 | public function getByCondition($condition, string $toScenario = null): BaseModel |
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| 337 | |||
| 338 | /******************************************* |
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| 339 | * FIND/GET BY CRITERIA |
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| 340 | *******************************************/ |
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| 341 | |||
| 342 | /** |
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| 343 | * @param $criteria |
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| 344 | * @param string $toScenario |
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| 345 | * @return BaseModel[] |
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| 346 | */ |
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| 347 | View Code Duplication | public function findAllByCriteria($criteria, string $toScenario = null): array |
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| 365 | |||
| 366 | /** |
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| 367 | * @param $criteria |
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| 368 | * @param string $toScenario |
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| 369 | * @return BaseModel[] |
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| 370 | * @throws ModelNotFoundException |
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| 371 | */ |
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| 372 | public function getAllByCriteria($criteria, string $toScenario = null): array |
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| 384 | |||
| 385 | /** |
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| 386 | * @param $criteria |
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| 387 | * @param string $toScenario |
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| 388 | * @return BaseModel|null |
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| 389 | */ |
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| 390 | View Code Duplication | public function findByCriteria($criteria, string $toScenario = null) |
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| 401 | |||
| 402 | /** |
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| 403 | * @param $criteria |
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| 404 | * @param string $toScenario |
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| 405 | * @return BaseModel |
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| 406 | * @throws ModelNotFoundException |
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| 407 | */ |
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| 408 | public function getByCriteria($criteria, string $toScenario = null): BaseModel |
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| 420 | |||
| 421 | |||
| 422 | /******************************************* |
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| 423 | * FIND/GET BY RECORD |
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| 424 | *******************************************/ |
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| 425 | |||
| 426 | /** |
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| 427 | * @param Record $record |
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| 428 | * @param string $toScenario |
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| 429 | * @return BaseModel |
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| 430 | */ |
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| 431 | View Code Duplication | public function findByRecord(Record $record, string $toScenario = null): BaseModel |
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| 448 | |||
| 449 | /** |
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| 450 | * @param Record $record |
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| 451 | * @param string $toScenario |
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| 452 | * @return BaseModel |
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| 453 | */ |
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| 454 | public function getByRecord(Record $record, string $toScenario = null): BaseModel |
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| 458 | |||
| 459 | /** |
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| 460 | * @param BaseModel $model |
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| 461 | * @return Record|null |
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| 462 | */ |
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| 463 | public function findRecordByModel(BaseModel $model) |
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| 467 | |||
| 468 | /** |
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| 469 | * @param BaseModel $model |
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| 470 | * @return Record |
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| 471 | * @throws RecordNotFoundException |
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| 472 | */ |
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| 473 | public function getRecordByModel(BaseModel $model) |
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| 485 | |||
| 486 | /******************************************* |
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| 487 | * CACHE |
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| 488 | *******************************************/ |
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| 489 | |||
| 490 | /** |
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| 491 | * @param $identifier |
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| 492 | * @return BaseModel|null |
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| 493 | */ |
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| 494 | public function findCache($identifier) |
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| 506 | |||
| 507 | /** |
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| 508 | * @param Record $record |
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| 509 | * @return BaseModel|null |
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| 510 | */ |
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| 511 | public function findCacheByRecord(Record $record) |
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| 515 | |||
| 516 | /** |
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| 517 | * @param BaseModel $model |
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| 518 | * @return static |
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| 519 | */ |
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| 520 | public function addToCache(BaseModel $model) |
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| 524 | |||
| 525 | |||
| 526 | /******************************************* |
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| 527 | * EXCEPTIONS |
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| 528 | *******************************************/ |
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| 529 | |||
| 530 | /** |
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| 531 | * @throws ModelNotFoundException |
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| 532 | */ |
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| 533 | protected function notFoundException() |
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| 543 | |||
| 544 | /** |
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| 545 | * @param null $criteria |
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| 546 | * @throws ModelNotFoundException |
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| 547 | */ |
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| 548 | protected function notFoundByCriteriaException($criteria = null) |
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| 559 | |||
| 560 | /** |
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| 561 | * @param null $condition |
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| 562 | * @throws ModelNotFoundException |
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| 563 | */ |
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| 564 | protected function notFoundByConditionException($condition = null) |
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| 575 | |||
| 576 | } |
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| 577 |