vistart /
yii2-models
Complex classes like BlameableTrait 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 BlameableTrait, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 47 | trait BlameableTrait |
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| 48 | { |
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| 49 | use ConfirmationTrait, |
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| 50 | SelfBlameableTrait; |
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| 51 | |||
| 52 | private $blameableLocalRules = []; |
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| 53 | private $blameableLocalBehaviors = []; |
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| 54 | |||
| 55 | /** |
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| 56 | * @var boolean|string|array Specify the attribute(s) name of content(s). If |
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| 57 | * there is only one content attribute, you can assign its name. Or there |
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| 58 | * is multiple attributes associated with contents, you can assign their |
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| 59 | * names in array. If you don't want to use this feature, please assign |
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| 60 | * false. |
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| 61 | * For example: |
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| 62 | * ```php |
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| 63 | * public $contentAttribute = 'comment'; // only one field named as 'comment'. |
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| 64 | * ``` |
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| 65 | * or |
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| 66 | * ```php |
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| 67 | * public $contentAttribute = ['year', 'month', 'day']; // multiple fields. |
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| 68 | * ``` |
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| 69 | * or |
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| 70 | * ```php |
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| 71 | * public $contentAttribute = false; // no need of this feature. |
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| 72 | * ``` |
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| 73 | * If you don't need this feature, you should add rules corresponding with |
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| 74 | * `content` in `rules()` method of your user model by yourself. |
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| 75 | */ |
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| 76 | public $contentAttribute = 'content'; |
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| 77 | |||
| 78 | /** |
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| 79 | * @var array built-in validator name or validatation method name and |
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| 80 | * additional parameters. |
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| 81 | */ |
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| 82 | public $contentAttributeRule = ['string', 'max' => 255]; |
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| 83 | |||
| 84 | /** |
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| 85 | * @var boolean|string Specify the field which stores the type of content. |
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| 86 | */ |
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| 87 | public $contentTypeAttribute = false; |
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| 88 | |||
| 89 | /** |
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| 90 | * @var boolean|array Specify the logic type of content, not data type. If |
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| 91 | * your content doesn't need this feature. please specify false. If the |
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| 92 | * $contentAttribute is specified to false, this attribute will be skipped. |
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| 93 | * ```php |
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| 94 | * public $contentTypes = [ |
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| 95 | * 'public', |
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| 96 | * 'private', |
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| 97 | * 'friend', |
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| 98 | * ]; |
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| 99 | * ``` |
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| 100 | */ |
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| 101 | public $contentTypes = false; |
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| 102 | |||
| 103 | /** |
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| 104 | * @var boolean|string This attribute speicfy the name of description |
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| 105 | * attribute. If this attribute is assigned to false, this feature will be |
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| 106 | * skipped. |
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| 107 | */ |
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| 108 | public $descriptionAttribute = false; |
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| 109 | |||
| 110 | /** |
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| 111 | * @var string |
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| 112 | */ |
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| 113 | public $initDescription = ''; |
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| 114 | |||
| 115 | /** |
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| 116 | * @var string the attribute that will receive current user ID value. This |
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| 117 | * attribute must be assigned. |
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| 118 | */ |
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| 119 | public $createdByAttribute = "user_guid"; |
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| 120 | |||
| 121 | /** |
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| 122 | * @var string the attribute that will receive current user ID value. |
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| 123 | * Set this property to false if you do not want to record the updater ID. |
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| 124 | */ |
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| 125 | public $updatedByAttribute = "user_guid"; |
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| 126 | |||
| 127 | /** |
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| 128 | * @var boolean Add combinated unique rule if assigned to true. |
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| 129 | */ |
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| 130 | public $idCreatorCombinatedUnique = true; |
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| 131 | |||
| 132 | /** |
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| 133 | * @var boolean|string The name of user class which own the current entity. |
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| 134 | * If this attribute is assigned to false, this feature will be skipped, and |
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| 135 | * when you use create() method of UserTrait, it will be assigned with |
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| 136 | * current user class. |
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| 137 | */ |
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| 138 | public $userClass; |
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| 139 | public static $cacheKeyBlameableRules = 'blameable_rules'; |
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| 140 | public static $cacheTagBlameableRules = 'tag_blameable_rules'; |
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| 141 | public static $cacheKeyBlameableBehaviors = 'blameable_behaviors'; |
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| 142 | public static $cacheTagBlameableBehaviors = 'tag_blameable_behaviors'; |
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| 143 | |||
| 144 | /** |
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| 145 | * @inheritdoc |
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| 146 | */ |
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| 147 | 42 | public function rules() |
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| 151 | |||
| 152 | /** |
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| 153 | * @inheritdoc |
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| 154 | */ |
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| 155 | 42 | public function behaviors() |
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| 159 | |||
| 160 | /** |
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| 161 | * Get total of contents which owned by their owner. |
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| 162 | * @return integer |
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| 163 | */ |
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| 164 | 2 | public function countOfOwner() |
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| 169 | |||
| 170 | /** |
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| 171 | * Get content. |
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| 172 | * @return mixed |
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| 173 | */ |
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| 174 | public function getContent() |
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| 189 | |||
| 190 | /** |
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| 191 | * Set content. |
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| 192 | * @param mixed $content |
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| 193 | */ |
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| 194 | public function setContent($content) |
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| 208 | |||
| 209 | /** |
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| 210 | * Determines whether content could be edited. Your should implement this |
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| 211 | * method by yourself. |
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| 212 | * @return boolean |
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| 213 | * @throws NotSupportedException |
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| 214 | */ |
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| 215 | public function getContentCanBeEdited() |
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| 222 | |||
| 223 | /** |
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| 224 | * Check it has been ever edited. |
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| 225 | * @return boolean Whether this content has ever been edited. |
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| 226 | */ |
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| 227 | public function hasEverEdited() |
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| 236 | |||
| 237 | /** |
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| 238 | * Get blameable rules cache key. |
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| 239 | * @return string cache key. |
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| 240 | */ |
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| 241 | 42 | public function getBlameableRulesCacheKey() |
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| 245 | |||
| 246 | /** |
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| 247 | * Get blameable rules cache tag. |
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| 248 | * @return string cache tag |
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| 249 | */ |
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| 250 | 15 | public function getBlameableRulesCacheTag() |
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| 254 | |||
| 255 | /** |
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| 256 | * Get the rules associated with content to be blamed. |
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| 257 | * @return array rules. |
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| 258 | */ |
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| 259 | 42 | public function getBlameableRules() |
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| 260 | { |
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| 261 | 42 | $cache = $this->getCache(); |
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| 262 | 42 | if ($cache) { |
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| 263 | 42 | $this->blameableLocalRules = $cache->get($this->getBlameableRulesCacheKey()); |
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| 264 | 42 | } |
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| 265 | // 若当前规则不为空，且是数组，则认为是规则数组，直接返回。 |
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| 266 | 42 | if (!empty($this->blameableLocalRules) && is_array($this->blameableLocalRules)) { |
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| 267 | 33 | return $this->blameableLocalRules; |
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| 268 | 2 | } |
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| 269 | |||
| 270 | // 父类规则与确认规则合并。 |
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| 271 | 15 | if ($cache) { |
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| 272 | 15 | TagDependency::invalidate($cache, [$this->getEntityRulesCacheTag()]); |
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| 273 | 15 | } |
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| 274 | 15 | $rules = array_merge( |
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| 275 | 15 | parent::rules(), |
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| 276 | 15 | $this->getConfirmationRules(), |
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| 277 | 15 | $this->getBlameableAttributeRules(), |
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| 278 | 15 | $this->getDescriptionRules(), |
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| 279 | 15 | $this->getContentRules(), |
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| 280 | 15 | $this->getSelfBlameableRules() |
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| 281 | 15 | ); |
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| 282 | 15 | $this->setBlameableRules($rules); |
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| 283 | 15 | return $this->blameableLocalRules; |
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| 284 | } |
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| 285 | |||
| 286 | /** |
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| 287 | * Get the rules associated with `createdByAttribute`, `updatedByAttribute` |
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| 288 | * and `idAttribute`-`createdByAttribute` combination unique. |
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| 289 | * @return array rules. |
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| 290 | */ |
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| 291 | 15 | public function getBlameableAttributeRules() |
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| 321 | |||
| 322 | /** |
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| 323 | * Get the rules associated with `description` attribute. |
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| 324 | * @return array rules. |
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| 325 | */ |
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| 326 | 15 | public function getDescriptionRules() |
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| 342 | |||
| 343 | /** |
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| 344 | * Get the rules associated with `content` and `contentType` attributes. |
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| 345 | * @return array rules. |
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| 346 | */ |
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| 347 | 15 | public function getContentRules() |
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| 378 | |||
| 379 | /** |
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| 380 | * Set blameable rules. |
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| 381 | * @param array $rules |
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| 382 | */ |
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| 383 | 15 | protected function setBlameableRules($rules = []) |
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| 392 | |||
| 393 | /** |
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| 394 | * Get blameable behaviors cache key. |
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| 395 | * @return string cache key. |
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| 396 | */ |
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| 397 | 42 | public function getBlameableBehaviorsCacheKey() |
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| 401 | |||
| 402 | /** |
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| 403 | * Get blameable behaviors cache tag. |
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| 404 | * @return string cache tag. |
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| 405 | */ |
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| 406 | 15 | public function getBlameableBehaviorsCacheTag() |
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| 410 | |||
| 411 | /** |
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| 412 | * Get blameable behaviors. If current behaviors array is empty, the init |
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| 413 | * array will be given. |
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| 414 | * @return array |
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| 415 | */ |
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| 416 | 42 | public function getBlameableBehaviors() |
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| 417 | { |
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| 418 | 42 | $cache = $this->getCache(); |
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| 419 | 42 | if ($cache) { |
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| 420 | 42 | $this->blameableLocalBehaviors = $cache->get($this->getBlameableBehaviorsCacheKey()); |
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| 421 | 42 | } |
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| 422 | 42 | if (empty($this->blameableLocalBehaviors) || !is_array($this->blameableLocalBehaviors)) { |
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| 423 | 15 | if ($cache) { |
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| 424 | 15 | TagDependency::invalidate($cache, [$this->getEntityBehaviorsCacheTag()]); |
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| 425 | 15 | } |
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| 426 | 15 | $behaviors = parent::behaviors(); |
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| 427 | 15 | $behaviors['blameable'] = [ |
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| 428 | 15 | 'class' => BlameableBehavior::className(), |
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| 429 | 15 | 'createdByAttribute' => $this->createdByAttribute, |
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| 430 | 15 | 'updatedByAttribute' => $this->updatedByAttribute, |
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| 431 | 15 | 'value' => [$this, |
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| 432 | 15 | 'onGetCurrentUserGuid'], |
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| 433 | ]; |
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| 434 | 15 | $this->setBlameableBehaviors($behaviors); |
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| 435 | 15 | } |
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| 436 | 42 | return $this->blameableLocalBehaviors; |
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| 437 | } |
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| 438 | |||
| 439 | /** |
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| 440 | * Set blameable behaviors. |
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| 441 | * @param array $behaviors |
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| 442 | */ |
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| 443 | 15 | protected function setBlameableBehaviors($behaviors = []) |
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| 453 | |||
| 454 | /** |
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| 455 | * Set description. |
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| 456 | * @return string description. |
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| 457 | */ |
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| 458 | public function getDescription() |
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| 463 | |||
| 464 | /** |
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| 465 | * Get description. |
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| 466 | * @param string $desc description. |
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| 467 | * @return string|null description if enabled, or null if disabled. |
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| 468 | */ |
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| 469 | public function setDescription($desc) |
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| 474 | |||
| 475 | /** |
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| 476 | * Get blame who owned this blameable model. |
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| 477 | * NOTICE! This method will not check whether `$userClass` exists. You should |
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| 478 | * specify it in `init()` method. |
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| 479 | * @return BaseUserQuery user. |
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| 480 | */ |
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| 481 | 1 | public function getUser() |
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| 487 | |||
| 488 | /** |
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| 489 | * Get updater who updated this blameable model recently. |
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| 490 | * NOTICE! This method will not check whether `$userClass` exists. You should |
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| 491 | * specify it in `init()` method. |
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| 492 | * @return BaseUserQuery user. |
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| 493 | */ |
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| 494 | 1 | public function getUpdater() |
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| 503 | |||
| 504 | /** |
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| 505 | * This event is triggered before the model update. |
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| 506 | * This method is ONLY used for being triggered by event. DO NOT call, |
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| 507 | * override or modify it directly, unless you know the consequences. |
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| 508 | * @param ModelEvent $event |
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| 509 | */ |
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| 510 | 14 | public function onContentChanged($event) |
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| 515 | |||
| 516 | /** |
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| 517 | * Return the current user's GUID if current model doesn't specify the owner |
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| 518 | * yet, or return the owner's GUID if current model has been specified. |
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| 519 | * This method is ONLY used for being triggered by event. DO NOT call, |
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| 520 | * override or modify it directly, unless you know the consequences. |
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| 521 | * @param ModelEvent $event |
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| 522 | * @return string the GUID of current user or the owner. |
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| 523 | */ |
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| 524 | 42 | public function onGetCurrentUserGuid($event) |
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| 536 | |||
| 537 | /** |
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| 538 | * Initialize type of content. the first of element[index is 0] of |
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| 539 | * $contentTypes will be used. |
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| 540 | * @param ModelEvent $event |
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| 541 | */ |
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| 542 | 41 | public function onInitContentType($event) |
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| 555 | |||
| 556 | /** |
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| 557 | * Initialize description property with $initDescription. |
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| 558 | * @param ModelEvent $event |
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| 559 | */ |
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| 560 | 42 | public function onInitDescription($event) |
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| 571 | |||
| 572 | /** |
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| 573 | * Attach events associated with blameable model. |
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| 574 | */ |
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| 575 | 42 | public function initBlameableEvents() |
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| 590 | |||
| 591 | /** |
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| 592 | * @inheritdoc |
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| 593 | */ |
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| 594 | 14 | public function enabledFields() |
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| 620 | |||
| 621 | /** |
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| 622 | * Find all follows by specified identity. If `$identity` is null, the logged-in |
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| 623 | * identity will be taken. |
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| 624 | * @param string|integer $pageSize If it is 'all`, then will find all follows, |
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| 625 | * the `$currentPage` parameter will be skipped. If it is integer, it will be |
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| 626 | * regarded as sum of models in one page. |
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| 627 | * @param integer $currentPage The current page number, begun with 0. |
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| 628 | * @param {$this->userClass} $identity |
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| 629 | * @return static[] If no follows, null will be given, or return follow array. |
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| 630 | */ |
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| 631 | public static function findAllByIdentityInBatch($pageSize = 'all', $currentPage = 0, $identity = null) |
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| 638 | |||
| 639 | /** |
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| 640 | * Find one follow by specified identity. If `$identity` is null, the logged-in |
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| 641 | * identity will be taken. If $identity doesn't has the follower, null will |
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| 642 | * be given. |
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| 643 | * @param integer $id user id. |
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| 644 | * @param boolean $throwException |
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| 645 | * @param {$this->userClass} $identity |
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| 646 | * @return static |
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| 647 | * @throws InvalidParamException |
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| 648 | */ |
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| 649 | public static function findOneById($id, $throwException = true, $identity = null) |
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| 661 | |||
| 662 | /** |
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| 663 | * Get total of follows of specified identity. |
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| 664 | * @param {$this->userClass} $identity |
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| 665 | * @return integer total. |
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| 666 | */ |
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| 667 | public static function countByIdentity($identity = null) |
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| 671 | |||
| 672 | /** |
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| 673 | * Get pagination, used for building contents page by page. |
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| 674 | * @param integer $limit |
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| 675 | * @param {$this->userClass} $identity |
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| 676 | * @return Pagination |
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| 677 | */ |
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| 678 | public static function getPagination($limit = 10, $identity = null) |
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| 687 | } |
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| 688 |
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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: