Complex classes like MultipleBlameableTrait 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 MultipleBlameableTrait, and based on these observations, apply Extract Interface, too.
1 | <?php |
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60 | trait MultipleBlameableTrait |
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61 | { |
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62 | |||
63 | /** |
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64 | * @var string class name of multiple blameable class. |
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65 | */ |
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66 | public $multiBlamesClass = ''; |
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67 | |||
68 | /** |
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69 | * @var string name of multiple blameable attribute. |
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70 | */ |
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71 | public $multiBlamesAttribute = 'blames'; |
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72 | |||
73 | /** |
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74 | * @var integer the limit of blames. it should be greater than or equal 1, and |
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75 | * less than or equal 10. |
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76 | */ |
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77 | public $blamesLimit = 10; |
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78 | |||
79 | /** |
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80 | * @var boolean determines whether blames list has been changed. |
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81 | */ |
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82 | public $blamesChanged = false; |
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83 | |||
84 | /** |
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85 | * @var string event name. |
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86 | */ |
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87 | public static $eventMultipleBlamesChanged = 'multipleBlamesChanged'; |
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88 | |||
89 | /** |
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90 | * Get the rules associated with multiple blameable attribute. |
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91 | * @return array rules. |
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92 | */ |
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93 | 46 | public function getMultipleBlameableAttributeRules() |
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100 | |||
101 | /** |
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102 | * Add specified blame. |
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103 | * @param {$this->multiBlamesClass}|string $blame |
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104 | * @return false|array |
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105 | * @throws InvalidParamException if blame existed. |
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106 | * @throws InvalidCallException if blame limit reached. |
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107 | */ |
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108 | 8 | public function addBlame($blame) |
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131 | |||
132 | /** |
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133 | * Create blame. |
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134 | * @param BaseUserModel $user who will own this blame. |
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135 | * @param array $config blame class configuration array. |
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136 | * @return {$this->multiBlamesClass} |
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137 | */ |
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138 | 10 | public static function createBlame($user, $config = []) |
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148 | |||
149 | /** |
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150 | * Add specified blame, or create it before adding if doesn't exist. |
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151 | * But you should save the blame instance before adding it, or the operation |
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152 | * will fail. |
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153 | * @param {$this->multiBlamesClass}|string|array $blame |
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154 | * It will be regarded as blame's guid if it is a string. And assign the |
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155 | * reference parameter $blame the instance if it existed, or create one if not |
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156 | * found. |
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157 | * If it is {$this->multiBlamesClass} instance and existed, then will add it, or |
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158 | * false will be given if it is not found in database. So if you want to add |
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159 | * blame instance, you should save it before adding. |
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160 | * If it is a array, it will be regarded as configuration array of blame. |
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161 | * Notice! This parameter passed by reference, so it must be a variable! |
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162 | * @param BaseUserModel $user whose blame. |
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163 | * If null, it will take this blameable model's user. |
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164 | * @return false|array false if blame created failed or not enable this feature. |
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165 | * blames guid array if created and added successfully. |
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166 | * @throws InvalidConfigException |
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167 | * @throws InvalidParamException |
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168 | * @see addBlame() |
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169 | */ |
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170 | 4 | public function addOrCreateBlame(&$blame = null, $user = null) |
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198 | |||
199 | /** |
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200 | * Remove specified blame. |
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201 | * @param {$this->multiBlamesClass}|string $blame |
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202 | * @return false|array all guids in json format. |
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203 | */ |
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204 | 1 | public function removeBlame($blame) |
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223 | |||
224 | /** |
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225 | * Remove all blames. |
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226 | */ |
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227 | 49 | public function removeAllBlames() |
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231 | |||
232 | /** |
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233 | * Count the blames. |
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234 | * @return integer |
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235 | */ |
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236 | 8 | public function getBlamesCount() |
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240 | |||
241 | /** |
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242 | * Get the guid array of blames. it may check all guids if valid before return. |
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243 | * @param boolean $checkValid determines whether checking the blame is valid. |
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244 | * @return array all guids in json format. |
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245 | */ |
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246 | 8 | public function getBlameGuids($checkValid = false) |
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258 | |||
259 | /** |
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260 | * Event triggered when blames list changed. |
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261 | * @param MultipleBlameableEvent $event |
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262 | */ |
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263 | 49 | public function onBlamesChanged($event) |
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268 | |||
269 | /** |
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270 | * Remove invalid blame guid from provided guid array. |
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271 | * @param array $guids guid array of blames. |
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272 | * @return array guid array of blames unset invalid. |
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273 | */ |
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274 | 49 | protected function unsetInvalidBlames($guids) |
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275 | { |
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276 | 49 | $unchecked = $guids; |
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277 | 49 | $multiBlamesClass = $this->multiBlamesClass; |
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278 | 49 | $mbi = $multiBlamesClass::buildNoInitModel(); |
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279 | 49 | foreach ($guids as $key => $guid) { |
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280 | 8 | $blame = $multiBlamesClass::find()->where([$mbi->guidAttribute => $guid])->exists(); |
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281 | 8 | if (!$blame) { |
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282 | unset($guids[$key]); |
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283 | } |
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284 | } |
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285 | 49 | $diff = array_diff($unchecked, $guids); |
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286 | 49 | $eventName = static::$eventMultipleBlamesChanged; |
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287 | 49 | $this->trigger($eventName, new MultipleBlameableEvent(['blamesChanged' => !empty($diff)])); |
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288 | 49 | return $guids; |
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289 | } |
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290 | |||
291 | /** |
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292 | * Set the guid array of blames, it may check all guids if valid. |
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293 | * @param array $guids guid array of blames. |
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294 | * @param boolean $checkValid determines whether checking the blame is valid. |
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295 | * @return false|array all guids. |
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296 | */ |
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297 | 49 | public function setBlameGuids($guids = [], $checkValid = true) |
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309 | |||
310 | /** |
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311 | * Get blame. |
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312 | * @param string $blameGuid |
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313 | * @return {$this->multiBlamesClass} |
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314 | */ |
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315 | 6 | public static function getBlame($blameGuid) |
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325 | |||
326 | /** |
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327 | * Get all blames that owned this relation. |
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328 | * @return array |
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329 | */ |
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330 | 2 | public function getOwnBlames() |
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336 | |||
337 | /** |
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338 | * Set blames which would own this relation. |
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339 | * @param array $blames |
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340 | */ |
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341 | public function setOwnBlames($blames) |
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346 | |||
347 | /** |
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348 | * Check blame owned this. |
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349 | * @param {$this->multiBlamesClass} $blame |
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350 | * @return boolean |
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351 | */ |
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352 | 2 | public function isBlameOwned($blame) |
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360 | |||
361 | /** |
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362 | * Get or create blame. |
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363 | * @param string|array|null $blameGuid |
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364 | * @param BaseUserModel $user |
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365 | * @return {$this->multiBlamesClass}|null |
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366 | */ |
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367 | 4 | public static function getOrCreateBlame($blameGuid, $user = null) |
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377 | |||
378 | /** |
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379 | * Get all ones to be blamed by `$blame`. |
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380 | * @param {$this->multiBlamesClass} $blame |
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381 | * @return array |
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382 | */ |
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383 | 2 | public static function getBlameds($blame) |
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396 | |||
397 | /** |
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398 | * Get all the blames of record. |
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399 | * @param BaseUserModel $user |
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400 | * @return array all blames. |
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401 | */ |
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402 | 2 | public static function getAllBlames($user) |
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414 | |||
415 | /** |
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416 | * Get all records which without any blames. |
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417 | * @param BaseUserModel $user |
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418 | * @return array all non-blameds. |
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419 | */ |
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420 | 1 | public static function getNonBlameds($user = null) |
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434 | |||
435 | /** |
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436 | * Initialize blames limit. |
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437 | * @param ModelEvent $event |
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438 | */ |
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439 | 49 | public function onInitBlamesLimit($event) |
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446 | |||
447 | /** |
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448 | * Get blames which do not own any model. |
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449 | * @param BaseUserModel $user |
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450 | */ |
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451 | 1 | public static function getEmptyBlames($user) |
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465 | } |
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466 |
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