Complex classes like SearchRequest 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 SearchRequest, and based on these observations, apply Extract Interface, too.
1 | <?php |
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31 | class SearchRequest implements \JsonSerializable { |
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32 | |||
33 | /** @var array */ |
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34 | private $providers; |
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35 | |||
36 | /** @var string */ |
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37 | private $search; |
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38 | |||
39 | /** @var int */ |
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40 | private $page = 1; |
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41 | |||
42 | /** @var int */ |
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43 | private $size = 10; |
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44 | |||
45 | /** @var string */ |
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46 | private $author; |
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47 | |||
48 | /** @var array */ |
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49 | private $tags; |
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50 | |||
51 | /** @var array */ |
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52 | private $options; |
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53 | |||
54 | /** @var array */ |
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55 | private $parts = []; |
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56 | |||
57 | /** @var array */ |
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58 | private $fields = []; |
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59 | |||
60 | /** @var array */ |
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61 | private $wildcardFields = []; |
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62 | |||
63 | /** @var array */ |
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64 | private $wildcardQueries = []; |
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65 | |||
66 | /** @var array */ |
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67 | private $wildcardFilters = []; |
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68 | |||
69 | /** @var array */ |
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70 | private $regexFilters = []; |
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71 | |||
72 | |||
73 | /** |
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74 | * SearchRequest constructor. |
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75 | */ |
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76 | public function __construct() { |
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78 | |||
79 | |||
80 | /** |
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81 | * @return array |
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82 | */ |
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83 | public function getProviders() { |
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86 | |||
87 | /** |
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88 | * @param string|array $providers |
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89 | */ |
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90 | public function setProviders($providers) { |
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97 | |||
98 | |||
99 | /** |
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100 | * @return string |
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101 | */ |
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102 | public function getAuthor() { |
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105 | |||
106 | /** |
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107 | * @param string $author |
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108 | */ |
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109 | public function setAuthor($author) { |
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112 | |||
113 | |||
114 | /** |
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115 | * @return string |
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116 | */ |
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117 | public function getSearch() { |
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120 | |||
121 | /** |
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122 | * @param string $search |
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123 | */ |
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124 | public function setSearch($search) { |
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127 | |||
128 | |||
129 | /** |
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130 | * |
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131 | */ |
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132 | public function cleanSearch() { |
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147 | |||
148 | |||
149 | /** |
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150 | * @param $word |
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151 | * |
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152 | * @return bool |
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153 | */ |
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154 | private function searchQueryOptions($word) { |
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170 | |||
171 | |||
172 | /** |
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173 | * @return int |
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174 | */ |
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175 | public function getPage() { |
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178 | |||
179 | /** |
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180 | * @param int $page |
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181 | */ |
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182 | public function setPage($page) { |
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189 | |||
190 | |||
191 | /** |
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192 | * @return int |
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193 | */ |
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194 | public function getSize() { |
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197 | |||
198 | /** |
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199 | * @param int $size |
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200 | */ |
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201 | public function setSize($size) { |
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204 | |||
205 | |||
206 | /** |
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207 | * @return array |
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208 | */ |
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209 | public function getOptions() { |
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212 | |||
213 | /** |
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214 | * @param array $options |
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215 | */ |
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216 | public function setOptions($options) { |
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219 | |||
220 | /** |
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221 | * @param $key |
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222 | * @param $value |
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223 | * |
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224 | * @return $this |
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225 | */ |
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226 | public function addOption($key, $value) { |
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231 | |||
232 | /** |
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233 | * @param string $option |
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234 | * |
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235 | * @return mixed|string |
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236 | */ |
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237 | public function getOption($option) { |
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244 | |||
245 | |||
246 | /** |
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247 | * @param array $parts |
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248 | * |
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249 | * @return $this |
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250 | */ |
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251 | public function setParts($parts) { |
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256 | |||
257 | /** |
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258 | * @return array |
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259 | */ |
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260 | public function getParts() { |
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263 | |||
264 | |||
265 | /** |
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266 | * @return array |
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267 | */ |
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268 | public function getFields() { |
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271 | |||
272 | /** |
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273 | * @param array $fields |
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274 | * |
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275 | * @return $this |
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276 | */ |
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277 | public function setFields($fields) { |
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282 | |||
283 | /** |
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284 | * @param $field |
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285 | * |
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286 | * @return $this |
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287 | */ |
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288 | public function addField($field) { |
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293 | |||
294 | |||
295 | /** |
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296 | * @param string $tag |
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297 | */ |
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298 | public function addTag($tag) { |
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301 | |||
302 | /** |
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303 | * @return array |
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304 | */ |
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305 | public function getTags() { |
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308 | |||
309 | /** |
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310 | * @param array $tags |
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311 | */ |
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312 | public function setTags($tags) { |
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315 | |||
316 | |||
317 | /** |
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318 | * @param array $query |
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319 | * |
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320 | * @return $this |
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321 | */ |
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322 | public function addWildcardField($field) { |
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327 | |||
328 | /** |
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329 | * @return array |
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330 | */ |
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331 | public function getWildcardFields() { |
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334 | |||
335 | |||
336 | /** |
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337 | * @param array $query |
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338 | * |
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339 | * @return $this |
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340 | */ |
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341 | public function addWildcardQuery($field) { |
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346 | |||
347 | /** |
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348 | * @param array $query |
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349 | * |
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350 | * @return $this |
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351 | */ |
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352 | public function addWildcardQueries($query) { |
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357 | |||
358 | /** |
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359 | * @return array |
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360 | */ |
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361 | public function getWildcardQueries() { |
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364 | |||
365 | |||
366 | /** |
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367 | * @param array $filter |
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368 | * |
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369 | * @return $this |
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370 | */ |
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371 | public function addWildcardFilter($filter) { |
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376 | |||
377 | /** |
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378 | * @param array $filters |
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379 | * |
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380 | * @return $this |
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381 | */ |
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382 | public function addWildcardFilters($filters) { |
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387 | |||
388 | /** |
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389 | * @return array |
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390 | */ |
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391 | public function getWildcardFilters() { |
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394 | |||
395 | |||
396 | /** |
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397 | * @param array $filter |
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398 | * |
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399 | * @return $this |
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400 | */ |
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401 | public function addRegexFilter($filter) { |
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406 | |||
407 | /** |
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408 | * @param array $filters |
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409 | * |
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410 | * @return $this |
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411 | */ |
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412 | public function addRegexFilters($filters) { |
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417 | |||
418 | /** |
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419 | * @return array |
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420 | */ |
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421 | public function getRegexFilters() { |
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424 | |||
425 | |||
426 | /** |
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427 | * @return array |
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428 | */ |
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429 | public function jsonSerialize() { |
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441 | |||
442 | |||
443 | /** |
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444 | * @param string $json |
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445 | * |
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446 | * @return SearchRequest |
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447 | */ |
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448 | public static function fromJSON($json) { |
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451 | |||
452 | /** |
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453 | * @param array $arr |
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454 | * |
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455 | * @return SearchRequest |
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456 | */ |
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457 | public static function fromArray($arr) { |
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470 | |||
471 | |||
472 | } |
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italy
is not defined by the methodfinale(...)
.The most likely cause is that the parameter was removed, but the annotation was not.