Complex classes like CacheableRepository 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 CacheableRepository, and based on these observations, apply Extract Interface, too.
1 | <?php |
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12 | trait CacheableRepository |
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13 | { |
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14 | /** |
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15 | * @var CacheRepository |
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16 | */ |
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17 | protected $cacheRepository = null; |
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18 | |||
19 | /** |
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20 | * @var boolean |
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21 | */ |
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22 | protected $cacheSkip = false; |
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23 | |||
24 | /** |
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25 | * Set Cache Repository |
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26 | * |
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27 | * @param CacheRepository $repository |
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28 | * |
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29 | * @return $this |
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30 | */ |
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31 | 1 | public function setCacheRepository(CacheRepository $repository) |
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37 | |||
38 | /** |
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39 | * Return instance of Cache Repository |
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40 | * |
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41 | * @return CacheRepository |
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42 | */ |
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43 | 1 | public function getCacheRepository() |
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51 | |||
52 | /** |
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53 | * CacheTags |
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54 | * |
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55 | * @param mixed $tags |
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56 | * |
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57 | * @return \Illuminate\Cache\TaggedCache |
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58 | */ |
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59 | 1 | public function cacheTags($tags = null) |
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65 | |||
66 | /** |
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67 | * Skip Cache |
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68 | * |
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69 | * @param bool $status |
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70 | * |
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71 | * @return $this |
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72 | */ |
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73 | 1 | public function skipCache($status = true) |
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79 | |||
80 | /** |
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81 | * Is Skipped Cache |
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82 | * |
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83 | * @return bool |
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84 | */ |
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85 | 2 | public function isSkippedCache() |
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97 | |||
98 | /** |
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99 | * Allowed Cache |
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100 | * |
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101 | * @param string $method |
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102 | * |
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103 | * @return bool |
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104 | */ |
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105 | 1 | protected function allowedCache($method) |
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130 | |||
131 | /** |
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132 | * Get Cache key for the method |
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133 | * |
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134 | * @param string $method |
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135 | * @param array $args |
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136 | * |
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137 | * @return string |
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138 | */ |
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139 | 1 | public function getCacheKey($method, $args = null) |
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148 | |||
149 | /** |
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150 | * Serialize the criteria making sure the Closures are taken care of. |
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151 | * |
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152 | * @return string |
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153 | */ |
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154 | 1 | protected function serializeCriteria() |
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164 | |||
165 | /** |
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166 | * Serialize single criterion with customized serialization of Closures. |
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167 | * |
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168 | * @param \Prettus\Repository\Contracts\CriteriaInterface $criterion |
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169 | * |
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170 | * @return \Prettus\Repository\Contracts\CriteriaInterface|array |
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171 | * |
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172 | * @throws \Exception |
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173 | */ |
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174 | protected function serializeCriterion($criterion) |
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195 | |||
196 | /** |
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197 | * Get cache minutes |
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198 | * |
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199 | * @return int |
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200 | */ |
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201 | 1 | public function getCacheMinutes() |
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207 | |||
208 | /** |
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209 | * call Cache |
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210 | * |
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211 | * @param string $method |
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212 | * @param array $args |
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213 | * |
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214 | * @return mixed |
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215 | */ |
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216 | 1 | public function callCache($method, array $args) |
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230 | |||
231 | /** |
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232 | * Retrieve all data of repository |
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233 | * |
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234 | * @param array $columns |
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235 | * |
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236 | * @return mixed |
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237 | */ |
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238 | 1 | public function all($columns = ['*']) |
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242 | |||
243 | /** |
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244 | * Retrieve all data of repository, paginated |
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245 | * |
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246 | * @param null $limit |
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247 | * @param array $columns |
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248 | * |
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249 | * @return mixed |
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250 | */ |
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251 | 1 | public function paginate($limit = null, $columns = ['*']) |
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255 | |||
256 | /** |
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257 | * Find data by id |
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258 | * |
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259 | * @param int $id |
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260 | * @param array $columns |
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261 | * |
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262 | * @return mixed |
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263 | */ |
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264 | 1 | public function find($id, $columns = ['*']) |
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268 | |||
269 | /** |
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270 | * Find data by field and value |
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271 | * |
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272 | * @param string $field |
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273 | * @param mixed $value |
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274 | * @param array $columns |
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275 | * |
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276 | * @return mixed |
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277 | */ |
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278 | 1 | public function findByField($field, $value = null, $columns = ['*']) |
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282 | |||
283 | /** |
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284 | * Find data by multiple fields |
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285 | * |
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286 | * @param array $where |
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287 | * @param array $columns |
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288 | * |
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289 | * @return mixed |
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290 | */ |
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291 | 1 | public function findWhere(array $where, $columns = ['*']) |
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295 | |||
296 | /** |
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297 | * Find data by Criteria |
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298 | * |
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299 | * @param CriteriaInterface $criteria |
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300 | * |
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301 | * @return mixed |
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302 | */ |
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303 | 1 | public function getByCriteria(CriteriaInterface $criteria) |
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307 | |||
308 | /** |
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309 | * Pluck |
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310 | * |
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311 | * @param string $column |
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312 | * @param array $key |
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313 | * |
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314 | * @return array |
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315 | */ |
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316 | 1 | public function pluck($column, $key = null) |
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320 | |||
321 | /** |
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322 | * Count |
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323 | * |
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324 | * @param array $input Array Input |
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325 | * |
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326 | * @return int |
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327 | */ |
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328 | 1 | public function count(array $input = array()) |
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332 | |||
333 | /** |
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334 | * Max |
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335 | * |
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336 | * @param mixed $field Mixed Field |
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337 | * @param array $input Array Input |
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338 | * |
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339 | * @return mixed |
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340 | */ |
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341 | 1 | public function max($field, array $input = array()) |
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345 | |||
346 | /** |
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347 | * Min |
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348 | * |
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349 | * @param mixed $field Mixed Field |
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350 | * @param array $input Array Input |
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351 | * |
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352 | * @return mixed |
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353 | */ |
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354 | 1 | public function min($field, array $input = array()) |
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358 | |||
359 | /** |
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360 | * Sum |
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361 | * |
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362 | * @param mixed $field Mixed Field |
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363 | * @param array $input Array Input |
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364 | * |
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365 | * @return float |
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366 | */ |
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367 | 1 | public function sum($field, array $input = array()) |
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371 | |||
372 | /** |
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373 | * Average |
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374 | * |
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375 | * @param mixed $field Mixed Field |
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376 | * @param array $input Array Input |
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377 | * |
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378 | * @return float |
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379 | */ |
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380 | 1 | public function avg($field, array $input = array()) |
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384 | } |
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385 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: