Complex classes like ActiveRecord 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 ActiveRecord, and based on these observations, apply Extract Interface, too.
1 | <?php |
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20 | class ActiveRecord extends BaseActiveRecord |
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21 | { |
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22 | /** |
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23 | * Returns the database connection used by this AR class. |
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24 | * By default, the "hiart" application component is used as the database connection. |
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25 | * You may override this method if you want to use a different database connection. |
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26 | * |
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27 | * @return AbstractConnection the database connection used by this AR class |
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28 | */ |
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29 | public static function getDb() |
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33 | |||
34 | /** |
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35 | * {@inheritdoc} |
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36 | * @return ActiveQuery the newly created [[ActiveQuery]] instance |
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37 | */ |
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38 | 2 | public static function find() |
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44 | |||
45 | public function isScenarioDefault() |
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49 | |||
50 | /** |
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51 | * This method defines the attribute that uniquely identifies a record. |
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52 | * |
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53 | * The primaryKey for HiArt objects is the `id` field by default. This field is not part of the |
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54 | * ActiveRecord attributes so you should never add `_id` to the list of [[attributes()|attributes]]. |
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55 | * |
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56 | * You may override this method to define the primary key name. |
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57 | * |
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58 | * Note that HiArt only supports _one_ attribute to be the primary key. However to match the signature |
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59 | * of the [[\yii\db\ActiveRecordInterface|ActiveRecordInterface]] this methods returns an array instead of a |
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60 | * single string. |
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61 | * |
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62 | * @return string[] array of primary key attributes. Only the first element of the array will be used. |
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63 | */ |
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64 | public static function primaryKey() |
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68 | |||
69 | /** |
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70 | * Returns the list of attribute names. |
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71 | * By default, this method returns all attributes mentioned in rules. |
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72 | * You may override this method to change the default behavior. |
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73 | * @return string[] list of attribute names |
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74 | */ |
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75 | 2 | public function attributes() |
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76 | { |
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77 | 2 | $attributes = []; |
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78 | 2 | foreach ($this->rules() as $rule) { |
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79 | 2 | $names = reset($rule); |
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80 | 2 | if (is_string($names)) { |
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81 | 2 | $names = [$names]; |
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82 | } |
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83 | 2 | foreach ($names as $name) { |
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84 | 2 | if (substr_compare($name, '!', 0, 1) === 0) { |
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85 | $name = mb_substr($name, 1); |
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86 | } |
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87 | 2 | $attributes[$name] = $name; |
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88 | } |
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89 | } |
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90 | |||
91 | 2 | return array_values($attributes); |
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92 | } |
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93 | |||
94 | /** |
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95 | * Creates an active record instance. |
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96 | * |
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97 | * This method is called together with [[populateRecord()]] by [[ActiveQuery]]. |
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98 | * It is not meant to be used for creating new records directly. |
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99 | * |
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100 | * You may override this method if the instance being created |
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101 | * depends on the row data to be populated into the record. |
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102 | * For example, by creating a record based on the value of a column, |
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103 | * you may implement the so-called single-table inheritance mapping. |
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104 | * |
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105 | * @return static the newly created active record |
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106 | */ |
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107 | 2 | public static function instantiate($row) |
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108 | { |
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109 | 2 | return new static(); |
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110 | } |
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111 | |||
112 | /** |
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113 | * @return string the name of the entity of this record |
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114 | */ |
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115 | 2 | public static function tableName() |
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119 | |||
120 | /** |
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121 | * Declares the name of the model associated with this class. |
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122 | * By default this method returns the class name by calling [[Inflector::camel2id()]]. |
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123 | * |
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124 | * @return string the module name |
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125 | */ |
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126 | public static function modelName() |
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130 | |||
131 | public function insert($runValidation = true, $attributes = null, $options = []) |
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132 | { |
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133 | if ($runValidation && !$this->validate($attributes)) { |
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134 | return false; |
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135 | } |
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136 | |||
137 | if (!$this->beforeSave(true)) { |
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138 | return false; |
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139 | } |
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140 | |||
141 | $values = $this->getDirtyAttributes($attributes); |
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142 | $data = array_merge($values, $options, ['id' => $this->getOldPrimaryKey()]); |
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143 | $result = $this->query('insert', $data); |
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144 | |||
145 | $pk = static::primaryKey()[0]; |
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146 | $this->$pk = $result['id']; |
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147 | if ($pk !== 'id') { |
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148 | $values[$pk] = $result['id']; |
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149 | } |
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150 | $changedAttributes = array_fill_keys(array_keys($values), null); |
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151 | $this->setOldAttributes($values); |
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152 | $this->afterSave(true, $changedAttributes); |
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153 | |||
154 | return true; |
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155 | } |
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156 | |||
157 | /** |
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158 | * {@inheritdoc} |
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159 | */ |
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160 | public function delete($options = []) |
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174 | |||
175 | public function update($runValidation = true, $attributeNames = null, $options = []) |
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183 | |||
184 | protected function updateInternal($attributes = null, $options = []) |
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185 | { |
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186 | if (!$this->beforeSave(false)) { |
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187 | return false; |
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188 | } |
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189 | |||
190 | $values = $this->getAttributes($attributes); |
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191 | if (empty($values)) { |
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192 | $this->afterSave(false, $values); |
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193 | |||
194 | return 0; |
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195 | } |
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196 | |||
197 | $result = $this->query('update', $values, $options); |
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198 | |||
199 | $changedAttributes = []; |
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200 | foreach ($values as $name => $value) { |
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201 | $changedAttributes[$name] = $this->getOldAttribute($name); |
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202 | $this->setOldAttribute($name, $value); |
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203 | } |
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204 | |||
205 | $this->afterSave(false, $changedAttributes); |
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206 | |||
207 | return $result === false ? false : true; |
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208 | } |
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209 | |||
210 | public function batchQuery($defaultScenario, $data = [], array $options = []) |
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211 | { |
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212 | $options['batch'] = true; |
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213 | |||
214 | return $this->query($defaultScenario, $data, $options); |
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215 | } |
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216 | |||
217 | public function query($defaultScenario, $data = [], array $options = []) |
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218 | { |
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219 | $action = $this->getScenarioAction($defaultScenario); |
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220 | |||
221 | return static::perform($action, $data, $options); |
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222 | } |
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223 | |||
224 | public static function batchPerform($action, $data = [], array $options = []) |
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225 | { |
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226 | $options['batch'] = true; |
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227 | |||
228 | return static::perform($action, $data, $options); |
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229 | } |
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230 | |||
231 | public static function perform($action, $data = [], array $options = []) |
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232 | { |
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233 | return static::getDb()->createCommand()->perform($action, static::tableName(), $data, $options)->getData(); |
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234 | } |
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235 | |||
236 | /** |
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237 | * Converts scenario name to action. |
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238 | * @param string $default default action name |
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239 | * @throws InvalidConfigException |
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240 | * @throws NotSupportedException |
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241 | * @return string |
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242 | */ |
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243 | public function getScenarioAction($default = '') |
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257 | |||
258 | /** |
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259 | * Provides a correspondance array: scenario -> API action. |
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260 | * E.g. ['update-name' => 'set-name']. |
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261 | * @return array |
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262 | */ |
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263 | public function scenarioActions() |
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267 | |||
268 | /** |
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269 | * @return bool |
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270 | */ |
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271 | public function getIsNewRecord() |
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275 | |||
276 | /** |
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277 | * This method has no effect in HiArt ActiveRecord. |
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278 | */ |
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279 | public function optimisticLock() |
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283 | |||
284 | /** |
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285 | * Destroys the relationship in current model. |
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286 | * |
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287 | * This method is not supported by HiArt. |
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288 | */ |
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289 | public function unlinkAll($name, $delete = false) |
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293 | |||
294 | /** |
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295 | * {@inheritdoc} |
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296 | * |
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297 | * @return ActiveQueryInterface|ActiveQuery the relational query object. If the relation does not exist |
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298 | * and `$throwException` is false, null will be returned. |
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299 | */ |
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300 | public function getRelation($name, $throwException = true) |
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304 | |||
305 | /** |
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306 | * {@inheritdoc} |
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307 | * @return ActiveQuery the relational query object |
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308 | */ |
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309 | public function hasOne($class, $link) |
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310 | { |
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311 | return parent::hasOne($class, $link); |
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313 | |||
314 | /** |
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315 | * {@inheritdoc} |
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316 | * @return ActiveQuery the relational query object |
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317 | */ |
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318 | public function hasMany($class, $link) |
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322 | } |
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323 |
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.