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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37 | class SearchRequest |
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38 | { |
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39 | /** |
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40 | * @var string |
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41 | */ |
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42 | protected $id; |
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43 | |||
44 | /** |
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45 | * @var string |
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46 | */ |
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47 | protected $argumentNameSpace = 'tx_solr'; |
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48 | |||
49 | /** |
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50 | * Arguments that should be kept for sub requests. |
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51 | * |
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52 | * @var array |
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53 | */ |
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54 | protected $persistentArgumentsPaths = array('q', 'tx_solr:filter', 'tx_solr:sort'); |
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55 | |||
56 | /** |
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57 | * @var bool |
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58 | */ |
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59 | protected $stateChanged = false; |
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60 | |||
61 | /** |
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62 | * @var ArrayAccessor |
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63 | */ |
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64 | protected $argumentsAccessor; |
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65 | |||
66 | /** |
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67 | * The sys_language_uid that was used in the context where the request was build. |
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68 | * This could be different from the "L" parameter and and not relevant for urls, |
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69 | * because typolink itself will handle it. |
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70 | * |
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71 | * @var int |
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72 | */ |
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73 | protected $contextSystemLanguageUid; |
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74 | |||
75 | /** |
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76 | * The page_uid that was used in the context where the request was build. |
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77 | * |
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78 | * The pageUid is not relevant for the typolink additionalArguments and therefore |
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79 | * a separate property. |
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80 | * |
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81 | * @var int |
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82 | */ |
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83 | protected $contextPageUid; |
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84 | |||
85 | /** |
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86 | * @var TypoScriptConfiguration |
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87 | */ |
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88 | protected $contextTypoScriptConfiguration; |
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89 | |||
90 | /** |
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91 | * @param array $argumentsArray |
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92 | * @param int $pageUid |
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93 | * @param int $sysLanguageUid |
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94 | * @param TypoScriptConfiguration $typoScriptConfiguration |
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95 | */ |
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96 | 56 | public function __construct(array $argumentsArray = array(), $pageUid = 0, $sysLanguageUid = 0, TypoScriptConfiguration $typoScriptConfiguration = null) |
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106 | |||
107 | /** |
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108 | * @return string |
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109 | */ |
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110 | 1 | public function getId() |
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114 | |||
115 | /** |
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116 | * Can be used do merge arguments into the request arguments |
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117 | * |
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118 | * @param array $argumentsToMerge |
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119 | * @return SearchRequest |
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120 | */ |
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121 | 24 | public function mergeArguments(array $argumentsToMerge) |
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132 | |||
133 | /** |
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134 | * Helper method to prefix an accessor with the arguments namespace. |
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135 | * |
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136 | * @param $path |
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137 | * @return string |
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138 | */ |
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139 | 47 | protected function prefixWithNamespace($path) |
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143 | |||
144 | /** |
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145 | * @return array |
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146 | */ |
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147 | 1 | public function getActiveFacetNames() |
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158 | |||
159 | /** |
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160 | * Returns all facet values for a certain facetName |
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161 | * @param string $facetName |
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162 | * @return array |
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163 | */ |
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164 | 1 | public function getActiveFacetValuesByName($facetName) |
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178 | |||
179 | /** |
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180 | * @return array|null |
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181 | */ |
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182 | 11 | protected function getActiveFacets() |
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187 | |||
188 | /** |
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189 | * @return int |
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190 | */ |
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191 | 2 | public function getActiveFacetCount() |
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195 | |||
196 | /** |
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197 | * @param $activeFacets |
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198 | * @return array|null |
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199 | * |
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200 | * @return SearchRequest |
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201 | */ |
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202 | 8 | protected function setActiveFacets($activeFacets = array()) |
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209 | |||
210 | /** |
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211 | * Adds a facet value to the request. |
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212 | * |
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213 | * @param string $facetName |
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214 | * @param mixed $facetValue |
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215 | * |
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216 | * @return SearchRequest |
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217 | */ |
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218 | 6 | public function addFacetValue($facetName, $facetValue) |
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231 | |||
232 | /** |
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233 | * Removes a facet value from the request. |
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234 | * |
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235 | * @param string $facetName |
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236 | * @param mixed $facetValue |
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237 | * |
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238 | * @return SearchRequest |
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239 | */ |
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240 | 1 | public function removeFacetValue($facetName, $facetValue) |
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259 | |||
260 | /** |
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261 | * Removes all facet values from the request by a certain facet name |
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262 | * |
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263 | * @param string $facetName |
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264 | * |
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265 | * @return SearchRequest |
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266 | */ |
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267 | 1 | public function removeAllFacetValuesByName($facetName) |
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283 | |||
284 | /** |
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285 | * Removes all active facets from the request. |
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286 | * |
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287 | * @return SearchRequest |
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288 | */ |
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289 | 1 | public function removeAllFacets() |
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296 | |||
297 | /** |
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298 | * @param string $facetName |
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299 | * @param mixed $facetValue |
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300 | * @return bool |
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301 | */ |
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302 | 7 | public function getHasFacetValue($facetName, $facetValue) |
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313 | |||
314 | /** |
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315 | * @return bool |
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316 | */ |
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317 | 3 | public function getHasSorting() |
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322 | |||
323 | /** |
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324 | * Returns the sorting string in the url e.g. title asc. |
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325 | * |
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326 | * @return string|null |
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327 | */ |
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328 | 2 | protected function getSorting() |
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333 | |||
334 | /** |
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335 | * Helper function to get the sorting configuration name or direction. |
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336 | * |
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337 | * @param $index |
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338 | * @return null |
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339 | */ |
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340 | 2 | protected function getSortingPart($index) |
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350 | |||
351 | /** |
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352 | * Returns the sorting configuration name that is currently used. |
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353 | * |
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354 | * @return string |
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355 | */ |
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356 | 2 | public function getSortingName() |
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360 | |||
361 | /** |
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362 | * Returns the sorting direction that is currently used. |
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363 | * |
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364 | * @return string |
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365 | */ |
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366 | 1 | public function getSortingDirection() |
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370 | |||
371 | /** |
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372 | * @return SearchRequest |
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373 | */ |
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374 | 1 | public function removeSorting() |
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381 | |||
382 | /** |
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383 | * @param string $sortingName |
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384 | * @param string $direction (asc or desc) |
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385 | * |
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386 | * @return SearchRequest |
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387 | */ |
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388 | 1 | public function setSorting($sortingName, $direction = 'asc') |
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396 | |||
397 | /** |
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398 | * Method to set the paginated page of the search |
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399 | * |
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400 | * @param int $page |
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401 | * @return SearchRequest |
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402 | */ |
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403 | 1 | public function setPage($page) |
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410 | |||
411 | /** |
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412 | * Returns the passed page. |
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413 | * |
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414 | * @return int|null |
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415 | */ |
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416 | 32 | public function getPage() |
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421 | |||
422 | /** |
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423 | * Method to overwrite the query string. |
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424 | * |
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425 | * @param string $rawQueryString |
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426 | * @return SearchRequest |
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427 | */ |
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428 | 9 | public function setRawQueryString($rawQueryString) |
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434 | |||
435 | /** |
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436 | * Returns the passed rawQueryString. |
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437 | * |
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438 | * @return int|string |
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439 | */ |
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440 | 31 | public function getRawUserQuery() |
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444 | |||
445 | /** |
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446 | * Method to check if the query string is an empty string |
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447 | * (also empty string or whitespaces only are handled as empty). |
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448 | * |
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449 | * When no query string is set (null) the method returns false. |
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450 | * @return bool |
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451 | */ |
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452 | 33 | public function getRawUserQueryIsEmptyString() |
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466 | |||
467 | /** |
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468 | * This method returns true when no querystring is present at all. |
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469 | * Which means no search by the user was triggered |
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470 | * |
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471 | * @return bool |
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472 | */ |
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473 | 33 | public function getRawUserQueryIsNull() |
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478 | |||
479 | /** |
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480 | * Sets the results per page that are used during search. |
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481 | * |
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482 | * @param int $resultsPerPage |
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483 | * @return SearchRequest |
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484 | */ |
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485 | 1 | public function setResultsPerPage($resultsPerPage) |
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493 | |||
494 | /** |
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495 | * @return bool |
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496 | */ |
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497 | 1 | public function getStateChanged() |
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501 | |||
502 | /** |
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503 | * Returns the passed resultsPerPage value |
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504 | * @return int|null |
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505 | */ |
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506 | 30 | public function getResultsPerPage() |
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511 | |||
512 | /** |
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513 | * @return int |
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514 | */ |
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515 | 1 | public function getContextSystemLanguageUid() |
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519 | |||
520 | /** |
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521 | * @return int |
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522 | */ |
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523 | 2 | public function getContextPageUid() |
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527 | |||
528 | /** |
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529 | * Get contextTypoScriptConfiguration |
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530 | * |
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531 | * @return TypoScriptConfiguration |
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532 | */ |
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533 | 2 | public function getContextTypoScriptConfiguration() |
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537 | |||
538 | /** |
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539 | * Assigns the last known persistedArguments and restores their state. |
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540 | * |
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541 | * @return SearchRequest |
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542 | */ |
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543 | 56 | public function reset() |
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549 | |||
550 | /** |
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551 | * This can be used to start a new sub request, e.g. for a faceted search. |
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552 | * |
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553 | * @param bool $onlyPersistentArguments |
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554 | * @return SearchRequest |
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555 | */ |
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556 | 2 | public function getCopyForSubRequest($onlyPersistentArguments = true) |
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572 | |||
573 | /** |
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574 | * @return array |
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575 | */ |
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576 | 8 | public function getAsArray() |
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580 | } |
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581 |
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: