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 | 15 | 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 | 14 | 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 | 10 | public function rules() |
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230 | |||
231 | /** |
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232 | * @inheritdoc |
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233 | */ |
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234 | 1 | public function attributeLabels() |
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253 | |||
254 | /** |
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255 | * Get user profile |
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256 | * @return yii\db\ActiveQuery |
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257 | */ |
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258 | 1 | public function getProfile() |
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262 | |||
263 | /** |
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264 | * @inheritdoc |
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265 | */ |
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266 | 10 | public function beforeSave($insert) |
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276 | |||
277 | /** |
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278 | * @inheritdoc |
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279 | */ |
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280 | 9 | public function afterSave($insert, $changedAttributes) |
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291 | |||
292 | /** |
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293 | * @inheritdoc |
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294 | */ |
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295 | 10 | public function transactions() |
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301 | |||
302 | /** |
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303 | * Returns an ID that can uniquely identify a user identity. |
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304 | * @return string|integer an ID that uniquely identifies a user identity. |
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305 | */ |
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306 | 2 | public function getId() |
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310 | |||
311 | /** |
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312 | * Validates the given auth key. |
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313 | * |
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314 | * This is required if [[User::enableAutoLogin]] is enabled. |
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315 | * @param string $authKey the given auth key |
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316 | * @return boolean whether the given auth key is valid. |
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317 | * @see getAuthKey() |
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318 | */ |
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319 | 1 | public function validateAuthKey($authKey) |
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324 | |||
325 | /** |
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326 | * Returns a key that can be used to check the validity of a given identity ID. |
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327 | * |
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328 | * The key should be unique for each individual user, and should be persistent |
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329 | * so that it can be used to check the validity of the user identity. |
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330 | * |
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331 | * The space of such keys should be big enough to defeat potential identity attacks. |
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332 | * |
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333 | * This is required if [[User::enableAutoLogin]] is enabled. |
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334 | * @return string a key that is used to check the validity of a given identity ID. |
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335 | * @see validateAuthKey() |
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336 | */ |
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337 | 1 | public function getAuthKey() |
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341 | |||
342 | /** |
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343 | * Check active user |
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344 | * @return bool |
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345 | */ |
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346 | 2 | public function isActive() |
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350 | |||
351 | /** |
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352 | * User creation |
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353 | * For create the user you always must set attributes `email`, `password` and `name` |
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354 | * @param bool $sendEmail whether to send email about registration |
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355 | * @return bool |
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356 | */ |
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357 | 1 | public function create($sendEmail = false) |
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387 | |||
388 | /** |
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389 | * User registration |
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390 | * @return bool |
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391 | */ |
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392 | 8 | public function register() |
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422 | |||
423 | /** |
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424 | * Password generator |
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425 | * @return mixed |
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426 | */ |
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427 | 7 | public function generatePassword() |
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431 | |||
432 | /** |
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433 | * Generate special hash |
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434 | * @return string |
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435 | */ |
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436 | 8 | public function generateToken() |
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444 | |||
445 | /** |
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446 | * Start password restore procedure |
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447 | * @return bool |
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448 | */ |
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449 | 1 | public function restore() |
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468 | |||
469 | /** |
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470 | * Check blocked user |
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471 | * @return bool |
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472 | */ |
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473 | 4 | public function isBlocked() |
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477 | |||
478 | /** |
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479 | * Block user |
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480 | * @param bool $sendMail whether to send confirmation email about blocking. |
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481 | * If null, use global setting Module::$enableBlockingEmail |
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482 | * @return bool return false if user already blocked or not confirmed |
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483 | */ |
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484 | 1 | View Code Duplication | public function block($sendMail = null) |
502 | |||
503 | /** |
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504 | * Unblock user |
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505 | * @param bool $sendMail whether to send confirmation email about unblocking. |
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506 | * If null, use global setting Module::$enableUnblockingEmail |
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507 | * @return bool return false if user not blocked |
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508 | */ |
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509 | 1 | View Code Duplication | public function unblock($sendMail = null) |
527 | |||
528 | /** |
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529 | * Change the user password |
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530 | * @return bool |
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531 | */ |
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532 | 1 | public function changePassword() |
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550 | |||
551 | /** |
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552 | * Set new password |
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553 | * @param bool $sendEmail whether to send email about password change |
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554 | * @throws yii\base\Exception |
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555 | * @throws yii\base\InvalidConfigException |
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556 | */ |
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557 | 1 | public function newPassword($sendEmail = null) |
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577 | |||
578 | /** |
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579 | * Check that user request restore |
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580 | * @return bool |
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581 | */ |
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582 | 2 | public function isRestore() |
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586 | |||
587 | /** |
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588 | * Get user status as text |
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589 | * @param string $status status value. If not set, get from model |
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590 | * @return null|string |
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591 | */ |
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592 | public function getStatusText($status = null) |
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615 | |||
616 | /** |
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617 | * Get status list as array |
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618 | * @return array |
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619 | */ |
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620 | public function statusesList() |
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629 | |||
630 | /** |
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631 | * Get user gender as text |
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632 | * @param int $gender gender value. If not set, get from model |
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633 | * @return null|string |
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634 | */ |
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635 | public function getGenderText($gender = null) |
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652 | |||
653 | /** |
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654 | * Get gender list as array |
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655 | * @return array |
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656 | */ |
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657 | public function gendersList() |
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664 | |||
665 | /** |
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666 | * Resend confirmation message |
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667 | */ |
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668 | public function resend() |
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677 | |||
678 | /** |
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679 | * @inheritdoc |
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680 | */ |
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681 | 14 | public function behaviors() |
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692 | } |
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693 |
When comparing two booleans, it is generally considered safer to use the strict comparison operator.