Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like User 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 User, and based on these observations, apply Extract Interface, too.
1 | <?php |
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45 | class User extends ActiveRecord implements yii\web\IdentityInterface |
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46 | { |
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47 | use CommonTrait; |
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48 | |||
49 | /** Male gender */ |
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50 | const MALE = 1; |
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51 | /** Female gender */ |
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52 | const FEMALE = 2; |
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53 | |||
54 | /** Active user status */ |
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55 | const STATUS_ACTIVE = 1; |
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56 | /** Blocked user status */ |
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57 | const STATUS_BLOCKED = 2; |
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58 | /** User await email confirmation status */ |
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59 | const STATUS_CONFIRM = 3; |
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60 | /** User await access restore status */ |
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61 | const STATUS_RESTORE = 4; |
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62 | |||
63 | // TODO where store password between data enter and confirmation email? Password must be send with congratulation email |
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64 | /** @var string password field on registration on restore */ |
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65 | public $password; |
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66 | |||
67 | /** |
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68 | * @inheritdoc |
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69 | */ |
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70 | 16 | public static function tableName() |
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74 | |||
75 | /** |
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76 | * @inheritdoc |
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77 | * @return UserQuery the active query used by this AR class. |
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78 | */ |
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79 | 15 | public static function find() |
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84 | |||
85 | /** |
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86 | * Finds an identity by the given ID. |
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87 | * @param string|integer $id the ID to be looked for |
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88 | * @return IdentityInterface the identity object that matches the given ID. |
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89 | * Null should be returned if such an identity cannot be found |
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90 | * or the identity is not in an active state (disabled, deleted, etc.) |
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91 | */ |
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92 | 2 | public static function findIdentity($id) |
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96 | |||
97 | /** |
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98 | * Find user by token |
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99 | * @param string $token for search |
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100 | * @return null|static |
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101 | */ |
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102 | 3 | public static function findByToken($token) |
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106 | |||
107 | /** |
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108 | * Finds an identity by the given token. |
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109 | * @param mixed $token the token to be looked for |
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110 | * @param mixed $type the type of the token. The value of this parameter depends on the implementation. |
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111 | * For example, [[\yii\filters\auth\HttpBearerAuth]] will set this parameter to be `yii\filters\auth\HttpBearerAuth`. |
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112 | * @return IdentityInterface the identity object that matches the given token. |
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113 | * Null should be returned if such an identity cannot be found |
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114 | * or the identity is not in an active state (disabled, deleted, etc.) |
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115 | */ |
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116 | 1 | public static function findIdentityByAccessToken($token, $type = null) |
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123 | |||
124 | /** |
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125 | * Confirm user registration |
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126 | * @return bool return false if cannot confirm. |
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127 | * If in errors list has key `error`, that user already confirmed |
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128 | * If in errors list has key `token`, that confirm token was expired |
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129 | */ |
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130 | 3 | public function confirm() |
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150 | |||
151 | /** |
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152 | * Check that user was confirmed |
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153 | * @return bool |
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154 | */ |
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155 | 6 | public function isConfirmed() |
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159 | |||
160 | /** |
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161 | * Checks that the token was expired |
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162 | * @param int $timeToExpire time |
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163 | * @return bool |
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164 | */ |
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165 | 3 | public function isTokenExpired($timeToExpire) |
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169 | |||
170 | /** |
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171 | * Checks that the confirmation token was expired |
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172 | * @return bool |
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173 | */ |
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174 | 3 | public function isConfirmTokenExpired() |
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178 | |||
179 | /** |
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180 | * Checks that the restore token was expired |
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181 | * @return bool |
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182 | */ |
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183 | 1 | public function isRestoreTokenExpired() |
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187 | |||
188 | /** |
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189 | * @inheritdoc |
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190 | */ |
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191 | 11 | public function rules() |
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233 | |||
234 | /** |
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235 | * @inheritdoc |
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236 | */ |
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237 | 1 | public function attributeLabels() |
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260 | |||
261 | /** |
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262 | * Get user profile |
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263 | * @return yii\db\ActiveQuery |
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264 | */ |
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265 | 1 | public function getProfile() |
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269 | |||
270 | /** |
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271 | * @inheritdoc |
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272 | */ |
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273 | 11 | public function beforeSave($insert) |
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283 | |||
284 | /** |
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285 | * @inheritdoc |
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286 | */ |
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287 | 10 | public function afterSave($insert, $changedAttributes) |
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298 | |||
299 | /** |
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300 | * @inheritdoc |
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301 | */ |
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302 | 11 | public function transactions() |
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308 | |||
309 | /** |
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310 | * Returns an ID that can uniquely identify a user identity. |
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311 | * @return string|integer an ID that uniquely identifies a user identity. |
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312 | */ |
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313 | 2 | public function getId() |
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317 | |||
318 | /** |
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319 | * Validates the given auth key. |
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320 | * |
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321 | * This is required if [[User::enableAutoLogin]] is enabled. |
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322 | * @param string $authKey the given auth key |
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323 | * @return boolean whether the given auth key is valid. |
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324 | * @see getAuthKey() |
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325 | */ |
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326 | 1 | public function validateAuthKey($authKey) |
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331 | |||
332 | /** |
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333 | * Returns a key that can be used to check the validity of a given identity ID. |
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334 | * |
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335 | * The key should be unique for each individual user, and should be persistent |
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336 | * so that it can be used to check the validity of the user identity. |
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337 | * |
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338 | * The space of such keys should be big enough to defeat potential identity attacks. |
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339 | * |
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340 | * This is required if [[User::enableAutoLogin]] is enabled. |
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341 | * @return string a key that is used to check the validity of a given identity ID. |
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342 | * @see validateAuthKey() |
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343 | */ |
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344 | 1 | public function getAuthKey() |
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348 | |||
349 | /** |
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350 | * Check active user |
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351 | * @return bool |
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352 | */ |
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353 | 2 | public function isActive() |
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357 | |||
358 | /** |
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359 | * User creation |
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360 | * For create the user you always must set attributes `email`, `password` and `name` |
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361 | * @param bool $sendEmail whether to send email about registration |
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362 | * @return bool |
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363 | */ |
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364 | 1 | public function create($sendEmail = false) |
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394 | |||
395 | /** |
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396 | * User registration |
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397 | * @return bool |
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398 | */ |
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399 | 8 | public function register() |
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429 | |||
430 | /** |
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431 | * Password generator |
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432 | * @return mixed |
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433 | */ |
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434 | 7 | public function generatePassword() |
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438 | |||
439 | /** |
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440 | * Generate special hash |
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441 | * @return string |
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442 | */ |
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443 | 8 | public function generateToken() |
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451 | |||
452 | /** |
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453 | * Start password restore procedure |
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454 | * @return bool |
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455 | */ |
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456 | 1 | public function restore() |
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475 | |||
476 | /** |
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477 | * Check blocked user |
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478 | * @return bool |
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479 | */ |
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480 | 4 | public function isBlocked() |
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484 | |||
485 | /** |
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486 | * Block user |
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487 | * @param bool $sendMail whether to send confirmation email about blocking. |
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488 | * If null, use global setting Module::$enableBlockingEmail |
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489 | * @return bool return false if user already blocked or not confirmed |
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490 | */ |
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491 | 1 | View Code Duplication | public function block($sendMail = null) |
509 | |||
510 | /** |
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511 | * Unblock user |
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512 | * @param bool $sendMail whether to send confirmation email about unblocking. |
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513 | * If null, use global setting Module::$enableUnblockingEmail |
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514 | * @return bool return false if user not blocked |
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515 | */ |
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516 | 1 | View Code Duplication | public function unblock($sendMail = null) |
534 | |||
535 | /** |
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536 | * Change the user password |
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537 | * @return bool |
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538 | */ |
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539 | 1 | public function changePassword() |
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557 | |||
558 | /** |
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559 | * Set new password |
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560 | * @param bool $sendEmail whether to send email about password change |
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561 | * @throws yii\base\Exception |
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562 | * @throws yii\base\InvalidConfigException |
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563 | */ |
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564 | 1 | public function newPassword($sendEmail = null) |
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584 | |||
585 | /** |
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586 | * Check that user request restore |
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587 | * @return bool |
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588 | */ |
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589 | 2 | public function isRestore() |
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593 | |||
594 | /** |
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595 | * Get user status as text |
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596 | * @param string $status status value. If not set, get from model |
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597 | * @return null|string |
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598 | */ |
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599 | public function getStatusText($status = null) |
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607 | |||
608 | /** |
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609 | * Get status list as array |
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610 | * @return array |
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611 | */ |
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612 | static public function statusesList() |
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621 | |||
622 | /** |
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623 | * Get user gender as text |
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624 | * @param int $gender gender value. If not set, get from model |
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625 | * @return null|string |
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626 | */ |
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627 | public function getGenderText($gender = null) |
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635 | |||
636 | /** |
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637 | * Get gender list as array |
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638 | * @return array |
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639 | */ |
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640 | static public function gendersList() |
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648 | |||
649 | /** |
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650 | * Resend confirmation message |
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651 | */ |
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652 | public function resend() |
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661 | |||
662 | /** |
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663 | * @inheritdoc |
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664 | */ |
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665 | 15 | public function behaviors() |
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676 | } |
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677 |
When comparing two booleans, it is generally considered safer to use the strict comparison operator.