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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48 | trait BlameableTrait |
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49 | { |
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50 | use ConfirmationTrait, |
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51 | SelfBlameableTrait; |
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52 | |||
53 | private $blameableLocalRules = []; |
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54 | private $blameableLocalBehaviors = []; |
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55 | |||
56 | /** |
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57 | * @var boolean|string|array Specify the attribute(s) name of content(s). If |
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58 | * there is only one content attribute, you can assign its name. Or there |
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59 | * is multiple attributes associated with contents, you can assign their |
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60 | * names in array. If you don't want to use this feature, please assign |
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61 | * false. |
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62 | * For example: |
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63 | * ```php |
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64 | * public $contentAttribute = 'comment'; // only one field named as 'comment'. |
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65 | * ``` |
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66 | * or |
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67 | * ```php |
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68 | * public $contentAttribute = ['year', 'month', 'day']; // multiple fields. |
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69 | * ``` |
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70 | * or |
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71 | * ```php |
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72 | * public $contentAttribute = false; // no need of this feature. |
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73 | * ``` |
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74 | * If you don't need this feature, you should add rules corresponding with |
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75 | * `content` in `rules()` method of your user model by yourself. |
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76 | */ |
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77 | public $contentAttribute = 'content'; |
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78 | |||
79 | /** |
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80 | * @var array built-in validator name or validatation method name and |
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81 | * additional parameters. |
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82 | */ |
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83 | public $contentAttributeRule = ['string', 'max' => 255]; |
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84 | |||
85 | /** |
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86 | * @var boolean|string Specify the field which stores the type of content. |
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87 | */ |
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88 | public $contentTypeAttribute = false; |
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89 | |||
90 | /** |
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91 | * @var boolean|array Specify the logic type of content, not data type. If |
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92 | * your content doesn't need this feature. please specify false. If the |
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93 | * $contentAttribute is specified to false, this attribute will be skipped. |
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94 | * ```php |
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95 | * public $contentTypes = [ |
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96 | * 'public', |
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97 | * 'private', |
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98 | * 'friend', |
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99 | * ]; |
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100 | * ``` |
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101 | */ |
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102 | public $contentTypes = false; |
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103 | |||
104 | /** |
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105 | * @var boolean|string This attribute speicfy the name of description |
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106 | * attribute. If this attribute is assigned to false, this feature will be |
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107 | * skipped. |
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108 | */ |
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109 | public $descriptionAttribute = false; |
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110 | |||
111 | /** |
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112 | * @var string |
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113 | */ |
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114 | public $initDescription = ''; |
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115 | |||
116 | /** |
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117 | * @var string the attribute that will receive current user ID value. This |
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118 | * attribute must be assigned. |
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119 | */ |
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120 | public $createdByAttribute = "user_guid"; |
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121 | |||
122 | /** |
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123 | * @var string the attribute that will receive current user ID value. |
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124 | * Set this property to false if you do not want to record the updater ID. |
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125 | */ |
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126 | public $updatedByAttribute = "user_guid"; |
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127 | |||
128 | /** |
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129 | * @var boolean Add combinated unique rule if assigned to true. |
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130 | */ |
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131 | public $idCreatorCombinatedUnique = true; |
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132 | |||
133 | /** |
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134 | * @var boolean|string The name of user class which own the current entity. |
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135 | * If this attribute is assigned to false, this feature will be skipped, and |
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136 | * when you use create() method of UserTrait, it will be assigned with |
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137 | * current user class. |
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138 | */ |
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139 | public $userClass; |
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140 | public static $cacheKeyBlameableRules = 'blameable_rules'; |
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141 | public static $cacheTagBlameableRules = 'tag_blameable_rules'; |
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142 | public static $cacheKeyBlameableBehaviors = 'blameable_behaviors'; |
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143 | public static $cacheTagBlameableBehaviors = 'tag_blameable_behaviors'; |
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144 | |||
145 | /** |
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146 | * @inheritdoc |
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147 | * ------------ |
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148 | * The classical rules is like following: |
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149 | * [ |
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150 | * ['guid', 'required'], |
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151 | * ['guid', 'unique'], |
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152 | * ['guid', 'string', 'max' => 36], |
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153 | * |
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154 | * ['id', 'required'], |
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155 | * ['id', 'unique'], |
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156 | * ['id', 'string', 'max' => 4], |
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157 | * |
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158 | * ['created_at', 'safe'], |
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159 | * ['updated_at', 'safe'], |
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160 | * |
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161 | * ['ip_type', 'in', 'range' => [4, 6]], |
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162 | * ['ip', 'number', 'integerOnly' => true, 'min' => 0], |
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163 | * ] |
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164 | * @return array |
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165 | */ |
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166 | 51 | public function rules() |
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170 | |||
171 | /** |
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172 | * @inheritdoc |
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173 | */ |
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174 | 51 | public function behaviors() |
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178 | |||
179 | /** |
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180 | * Get total of contents which owned by their owner. |
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181 | * @return integer |
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182 | */ |
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183 | 1 | public function countOfOwner() |
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188 | |||
189 | /** |
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190 | * Get content. |
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191 | * @return mixed |
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192 | */ |
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193 | 4 | public function getContent() |
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194 | { |
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195 | 4 | $contentAttribute = $this->contentAttribute; |
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196 | 4 | if ($contentAttribute === false) { |
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197 | return null; |
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198 | } |
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199 | 4 | if (is_array($contentAttribute)) { |
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200 | $content = []; |
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201 | foreach ($contentAttribute as $key => $value) { |
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202 | $content[$key] = $this->$value; |
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203 | } |
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204 | return $content; |
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205 | } |
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206 | 4 | return $this->$contentAttribute; |
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207 | } |
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208 | |||
209 | /** |
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210 | * Set content. |
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211 | * @param mixed $content |
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212 | */ |
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213 | 24 | public function setContent($content) |
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214 | { |
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215 | 24 | $contentAttribute = $this->contentAttribute; |
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216 | 24 | if ($contentAttribute === false) { |
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217 | return; |
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218 | } |
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219 | 24 | if (is_array($contentAttribute)) { |
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220 | foreach ($contentAttribute as $key => $value) { |
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221 | $this->$value = $content[$key]; |
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222 | } |
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223 | return; |
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224 | } |
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225 | 24 | $this->$contentAttribute = $content; |
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226 | 24 | } |
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227 | |||
228 | /** |
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229 | * Determines whether content could be edited. Your should implement this |
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230 | * method by yourself. |
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231 | * @return boolean |
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232 | * @throws NotSupportedException |
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233 | */ |
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234 | public function getContentCanBeEdited() |
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241 | |||
242 | /** |
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243 | * Get blameable rules cache key. |
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244 | * @return string cache key. |
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245 | */ |
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246 | 51 | public function getBlameableRulesCacheKey() |
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250 | |||
251 | /** |
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252 | * Get blameable rules cache tag. |
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253 | * @return string cache tag |
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254 | */ |
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255 | 51 | public function getBlameableRulesCacheTag() |
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259 | |||
260 | /** |
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261 | * Get the rules associated with content to be blamed. |
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262 | * @return array rules. |
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263 | */ |
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264 | 51 | public function getBlameableRules() |
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290 | |||
291 | /** |
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292 | * Get the rules associated with `createdByAttribute`, `updatedByAttribute` |
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293 | * and `idAttribute`-`createdByAttribute` combination unique. |
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294 | * @return array rules. |
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295 | */ |
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296 | 51 | public function getBlameableAttributeRules() |
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326 | |||
327 | /** |
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328 | * Get the rules associated with `description` attribute. |
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329 | * @return array rules. |
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330 | */ |
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331 | 51 | public function getDescriptionRules() |
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347 | |||
348 | /** |
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349 | * Get the rules associated with `content` and `contentType` attributes. |
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350 | * @return array rules. |
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351 | */ |
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352 | 51 | public function getContentRules() |
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383 | |||
384 | /** |
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385 | * Set blameable rules. |
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386 | * @param array $rules |
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387 | */ |
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388 | 51 | protected function setBlameableRules($rules = []) |
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397 | |||
398 | /** |
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399 | * Get blameable behaviors cache key. |
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400 | * @return string cache key. |
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401 | */ |
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402 | 51 | public function getBlameableBehaviorsCacheKey() |
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406 | |||
407 | /** |
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408 | * Get blameable behaviors cache tag. |
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409 | * @return string cache tag. |
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410 | */ |
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411 | 51 | public function getBlameableBehaviorsCacheTag() |
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415 | |||
416 | /** |
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417 | * Get blameable behaviors. If current behaviors array is empty, the init |
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418 | * array will be given. |
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419 | * @return array |
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420 | */ |
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421 | 51 | public function getBlameableBehaviors() |
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443 | |||
444 | /** |
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445 | * Set blameable behaviors. |
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446 | * @param array $behaviors |
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447 | */ |
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448 | 51 | protected function setBlameableBehaviors($behaviors = []) |
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458 | |||
459 | /** |
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460 | * Set description. |
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461 | * @return string description. |
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462 | */ |
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463 | 1 | public function getDescription() |
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468 | |||
469 | /** |
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470 | * Get description. |
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471 | * @param string $desc description. |
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472 | * @return string|null description if enabled, or null if disabled. |
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473 | */ |
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474 | 1 | public function setDescription($desc) |
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479 | |||
480 | /** |
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481 | * Get blame who owned this blameable model. |
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482 | * NOTICE! This method will not check whether `$userClass` exists. You should |
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483 | * specify it in `init()` method. |
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484 | * @return BaseUserQuery user. |
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485 | */ |
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486 | 10 | public function getUser() |
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493 | |||
494 | /** |
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495 | * |
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496 | * @param BaseUserModel|string $user |
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497 | * @return boolean |
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498 | */ |
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499 | 39 | public function setUser($user) |
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512 | |||
513 | /** |
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514 | * Get updater who updated this blameable model recently. |
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515 | * NOTICE! This method will not check whether `$userClass` exists. You should |
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516 | * specify it in `init()` method. |
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517 | * @return BaseUserQuery user. |
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518 | */ |
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519 | 1 | public function getUpdater() |
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529 | |||
530 | /** |
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531 | * |
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532 | * @param BaseUserModel|string $user |
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533 | * @return boolean |
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534 | */ |
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535 | public function setUpdater($user) |
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551 | |||
552 | /** |
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553 | * This event is triggered before the model update. |
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554 | * This method is ONLY used for being triggered by event. DO NOT call, |
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555 | * override or modify it directly, unless you know the consequences. |
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556 | * @param ModelEvent $event |
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557 | */ |
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558 | 6 | public function onContentChanged($event) |
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564 | |||
565 | /** |
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566 | * Return the current user's GUID if current model doesn't specify the owner |
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567 | * yet, or return the owner's GUID if current model has been specified. |
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568 | * This method is ONLY used for being triggered by event. DO NOT call, |
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569 | * override or modify it directly, unless you know the consequences. |
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570 | * @param ModelEvent $event |
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571 | * @return string the GUID of current user or the owner. |
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572 | */ |
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573 | 39 | public function onGetCurrentUserGuid($event) |
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586 | |||
587 | /** |
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588 | * Initialize type of content. the first of element[index is 0] of |
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589 | * $contentTypes will be used. |
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590 | * @param ModelEvent $event |
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591 | */ |
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592 | 12 | public function onInitContentType($event) |
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606 | |||
607 | /** |
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608 | * Initialize description property with $initDescription. |
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609 | * @param ModelEvent $event |
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610 | */ |
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611 | 12 | public function onInitDescription($event) |
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623 | |||
624 | /** |
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625 | * Attach events associated with blameable model. |
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626 | */ |
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627 | 51 | public function initBlameableEvents() |
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642 | |||
643 | /** |
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644 | * @inheritdoc |
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645 | */ |
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646 | 29 | public function enabledFields() |
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673 | |||
674 | /** |
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675 | * Find all follows by specified identity. If `$identity` is null, the logged-in |
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676 | * identity will be taken. |
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677 | * @param string|integer $pageSize If it is 'all`, then will find all follows, |
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678 | * the `$currentPage` parameter will be skipped. If it is integer, it will be |
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679 | * regarded as sum of models in one page. |
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680 | * @param integer $currentPage The current page number, begun with 0. |
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681 | * @param {$this->userClass} $identity |
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682 | * @return static[] If no follows, null will be given, or return follow array. |
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683 | */ |
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684 | 1 | public static function findAllByIdentityInBatch($pageSize = 'all', $currentPage = 0, $identity = null) |
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691 | |||
692 | /** |
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693 | * Find one follow by specified identity. If `$identity` is null, the logged-in |
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694 | * identity will be taken. If $identity doesn't has the follower, null will |
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695 | * be given. |
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696 | * @param integer $id user id. |
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697 | * @param boolean $throwException |
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698 | * @param {$this->userClass} $identity |
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699 | * @return static |
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700 | * @throws InvalidParamException |
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701 | */ |
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702 | 1 | public static function findOneById($id, $throwException = true, $identity = null) |
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714 | |||
715 | /** |
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716 | * Get total of follows of specified identity. |
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717 | * @param {$this->userClass} $identity |
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718 | * @return integer total. |
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719 | */ |
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720 | 1 | public static function countByIdentity($identity = null) |
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724 | |||
725 | /** |
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726 | * Get pagination, used for building contents page by page. |
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727 | * @param integer $limit |
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728 | * @param {$this->userClass} $identity |
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729 | * @return Pagination |
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730 | */ |
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731 | public static function getPagination($limit = 10, $identity = null) |
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740 | } |
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741 |
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: