Complex classes like Recorder 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 Recorder, and based on these observations, apply Extract Interface, too.
1 | <?php |
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13 | class Recorder extends Component { |
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14 | |||
15 | /** |
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16 | * @var mixed |
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17 | */ |
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18 | protected $config = []; |
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19 | |||
20 | /** |
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21 | * @var array |
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22 | */ |
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23 | protected $absolutelyDontHandle = [ |
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24 | \Tylercd100\LERN\Exceptions\RecorderFailedException::class, |
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25 | ]; |
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26 | |||
27 | /** |
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28 | * The constructor |
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29 | */ |
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30 | 33 | public function __construct() { |
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33 | |||
34 | /** |
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35 | * Records an Exception to the database |
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36 | * @param Exception $e The exception you want to record |
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37 | * @return false|ExceptionModel |
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38 | * @throws RecorderFailedException |
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39 | */ |
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40 | 3 | public function record(Exception $e) |
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82 | |||
83 | /** |
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84 | * Checks the config to see if you can collect certain information |
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85 | * @param string $type the config value you want to check |
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86 | * @return boolean |
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87 | */ |
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88 | 3 | private function canCollect($type) { |
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94 | |||
95 | /** |
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96 | * @param string $key |
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97 | * @param Exception $e |
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98 | * @return array|int|null|string |
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99 | * @throws Exception |
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100 | */ |
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101 | 3 | protected function collect($key, Exception $e = null) { |
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122 | |||
123 | /** |
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124 | * Gets the ID of the User that is logged in |
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125 | * @return integer|null The ID of the User or Null if not logged in |
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126 | */ |
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127 | 3 | protected function getUserId() { |
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135 | |||
136 | /** |
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137 | * Gets the Method of the Request |
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138 | * @return string|null Possible values are null or GET, POST, DELETE, PUT, etc... |
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139 | */ |
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140 | 3 | protected function getMethod() { |
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148 | |||
149 | /** |
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150 | * Gets the input data of the Request |
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151 | * @return array|null The Input data or null |
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152 | */ |
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153 | 3 | protected function getData() { |
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161 | |||
162 | /** |
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163 | * Gets the URL of the Request |
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164 | * @return string|null Returns a URL string or null |
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165 | */ |
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166 | 3 | protected function getUrl() { |
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174 | |||
175 | /** |
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176 | * Returns the IP from the request |
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177 | * |
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178 | * @return string |
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179 | */ |
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180 | protected function getIp() { |
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183 | |||
184 | /** |
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185 | * Gets the status code of the Exception |
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186 | * @param Exception $e The Exception to check |
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187 | * @return string|integer The status code value |
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188 | */ |
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189 | 3 | protected function getStatusCode(Exception $e) { |
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196 | |||
197 | /** |
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198 | * This function will remove all keys from an array recursively as defined in the config file |
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199 | * @param array $data The array to remove keys from |
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200 | * @return void |
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201 | */ |
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202 | 3 | protected function excludeKeys(array $data) { |
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214 | } |
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215 |
If you access a property on an interface, you most likely code against a concrete implementation of the interface.
Available Fixes
Adding an additional type check:
Changing the type hint: