Complex classes like UpdateSimpleProductPage 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 UpdateSimpleProductPage, and based on these observations, apply Extract Interface, too.
1 | <?php |
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28 | class UpdateSimpleProductPage extends BaseUpdatePage implements UpdateSimpleProductPageInterface |
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29 | { |
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30 | use ChecksCodeImmutability; |
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31 | |||
32 | /** |
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33 | * {@inheritdoc} |
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34 | */ |
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35 | public function nameItIn($name, $localeCode) |
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42 | |||
43 | /** |
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44 | * {@inheritdoc} |
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45 | */ |
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46 | public function specifyPrice($price) |
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50 | |||
51 | /** |
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52 | * {@inheritdoc} |
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53 | */ |
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54 | public function getAttributeValue($attribute) |
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63 | |||
64 | /** |
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65 | * {@inheritdoc} |
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66 | */ |
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67 | public function hasAttribute($attribute) |
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71 | |||
72 | /** |
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73 | * {@inheritdoc} |
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74 | */ |
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75 | public function selectMainTaxon(TaxonInterface $taxon) |
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90 | |||
91 | /** |
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92 | * {@inheritdoc} |
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93 | */ |
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94 | public function isMainTaxonChosen($taxonName) |
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100 | |||
101 | public function disableTracking() |
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105 | |||
106 | public function enableTracking() |
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110 | |||
111 | /** |
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112 | * {@inheritdoc} |
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113 | */ |
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114 | public function isTracked() |
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118 | |||
119 | /** |
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120 | * {@inheritdoc} |
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121 | */ |
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122 | public function enableSlugModification($locale) |
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126 | |||
127 | /** |
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128 | * {@inheritdoc} |
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129 | */ |
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130 | public function isImageWithCodeDisplayed($code) |
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145 | |||
146 | /** |
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147 | * {@inheritdoc} |
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148 | */ |
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149 | public function attachImage($path, $code = null) |
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164 | |||
165 | /** |
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166 | * {@inheritdoc} |
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167 | */ |
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168 | public function changeImageWithCode($code, $path) |
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175 | |||
176 | /** |
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177 | * {@inheritdoc} |
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178 | */ |
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179 | public function removeImageWithCode($code) |
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186 | |||
187 | public function removeFirstImage() |
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192 | |||
193 | /** |
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194 | * {@inheritdoc} |
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195 | */ |
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196 | public function countImages() |
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202 | |||
203 | /** |
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204 | * {@inheritdoc} |
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205 | */ |
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206 | public function isImageCodeDisabled() |
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210 | |||
211 | /** |
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212 | * {@inheritdoc} |
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213 | */ |
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214 | public function isSlugReadOnlyIn($locale) |
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218 | |||
219 | /** |
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220 | * {@inheritdoc} |
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221 | */ |
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222 | public function getValidationMessageForImage() |
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235 | |||
236 | /** |
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237 | * {@inheritdoc} |
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238 | */ |
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239 | public function associateProducts(ProductAssociationTypeInterface $productAssociationType, array $productsNames) |
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265 | |||
266 | /** |
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267 | * {@inheritdoc} |
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268 | */ |
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269 | public function hasAssociatedProduct($productName, ProductAssociationTypeInterface $productAssociationType) |
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278 | |||
279 | /** |
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280 | * {@inheritdoc} |
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281 | */ |
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282 | public function removeAssociatedProduct($productName, ProductAssociationTypeInterface $productAssociationType) |
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295 | |||
296 | /** |
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297 | * {@inheritdoc} |
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298 | */ |
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299 | public function getPricingConfigurationForChannelAndCurrencyCalculator(ChannelInterface $channel, CurrencyInterface $currency) |
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307 | |||
308 | /** |
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309 | * {@inheritdoc} |
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310 | */ |
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311 | public function getSlug($locale) |
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317 | |||
318 | /** |
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319 | * {@inheritdoc} |
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320 | */ |
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321 | public function specifySlugIn($slug, $locale) |
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327 | |||
328 | /** |
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329 | * {@inheritdoc} |
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330 | */ |
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331 | public function activateLanguageTab($locale) |
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342 | |||
343 | /** |
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344 | * {@inheritdoc} |
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345 | */ |
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346 | protected function getElement($name, array $parameters = []) |
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354 | |||
355 | /** |
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356 | * {@inheritdoc} |
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357 | */ |
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358 | protected function getCodeElement() |
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362 | |||
363 | /** |
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364 | * {@inheritdoc} |
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365 | */ |
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366 | protected function getDefinedElements() |
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388 | |||
389 | private function openTaxonBookmarks() |
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393 | |||
394 | /** |
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395 | * @param string $tabName |
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396 | */ |
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397 | private function clickTabIfItsNotActive($tabName) |
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404 | |||
405 | /** |
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406 | * @param string $tabName |
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407 | */ |
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408 | private function clickTab($tabName) |
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413 | |||
414 | /** |
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415 | * @param string $code |
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416 | * |
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417 | * @return NodeElement |
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418 | */ |
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419 | private function getImageElementByCode($code) |
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430 | |||
431 | /** |
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432 | * @return NodeElement[] |
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433 | */ |
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434 | private function getImageElements() |
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440 | |||
441 | /** |
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442 | * @return NodeElement |
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443 | */ |
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444 | private function getLastImageElement() |
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452 | |||
453 | /** |
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454 | * @return NodeElement |
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455 | */ |
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456 | private function getFirstImageElement() |
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464 | |||
465 | /** |
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466 | * @param string $locale |
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467 | */ |
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468 | private function waitForSlugGenerationIfNecessary($locale) |
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484 | } |
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485 |
Very long variable names usually make code harder to read. It is therefore recommended not to make variable names too verbose.