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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15 | class Recorder extends Component { |
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16 | |||
17 | /** |
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18 | * @var mixed |
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19 | */ |
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20 | protected $config = []; |
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21 | |||
22 | /** |
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23 | * @var array |
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24 | */ |
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25 | protected $absolutelyDontHandle = [ |
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26 | \Tylercd100\LERN\Exceptions\RecorderFailedException::class, |
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27 | ]; |
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28 | |||
29 | /** |
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30 | * The constructor |
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31 | */ |
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32 | 3 | public function __construct() { |
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35 | |||
36 | /** |
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37 | * Records an Exception to the database |
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38 | * @param Exception $e The exception you want to record |
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39 | * @return false|ExceptionModel |
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40 | * @throws RecorderFailedException |
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41 | */ |
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42 | public function record(Exception $e) |
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43 | { |
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44 | if ($this->shouldntHandle($e)) { |
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45 | return false; |
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46 | } |
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47 | |||
48 | $opts = [ |
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49 | 'class' => get_class($e), |
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50 | 'file' => $e->getFile(), |
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51 | 'line' => $e->getLine(), |
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52 | 'code' => (is_int($e->getCode()) ? $e->getCode() : 0), |
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53 | 'message' => $e->getMessage(), |
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54 | 'trace' => $e->getTraceAsString(), |
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55 | ]; |
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56 | |||
57 | $configDependant = array_keys($this->config['collect']); |
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58 | |||
59 | try { |
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60 | foreach ($configDependant as $key) { |
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61 | if ($this->canCollect($key)) { |
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62 | $value = $this->collect($key, $e); |
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63 | if ($value !== null) { |
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64 | $opts[$key] = $value; |
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65 | } |
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66 | } |
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67 | } |
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68 | |||
69 | $class = config('lern.recorder.model'); |
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70 | $class = !empty($class) ? $class : ExceptionModel::class; |
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71 | |||
72 | $model = new $class(); |
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73 | foreach($opts as $key => $value) { |
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74 | $model->{$key} = $value; |
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75 | } |
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76 | |||
77 | $model->save(); |
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78 | |||
79 | Cache::forever($this->getCacheKey($e), Carbon::now()); |
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80 | |||
81 | return $model; |
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82 | } catch (Exception $e) { |
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83 | $code = (is_int($e->getCode()) ? $e->getCode() : 0); |
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84 | throw new RecorderFailedException($e->getMessage(), $code, $e); |
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85 | } |
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86 | } |
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87 | |||
88 | /** |
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89 | * Checks the config to see if you can collect certain information |
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90 | * @param string $type the config value you want to check |
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91 | * @return boolean |
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92 | */ |
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93 | private function canCollect($type) { |
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94 | if (!empty($this->config) && !empty($this->config['collect']) && !empty($this->config['collect'][$type])) { |
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95 | return $this->config['collect'][$type] === true; |
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96 | } |
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97 | return false; |
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98 | } |
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99 | |||
100 | /** |
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101 | * @param string $key |
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102 | * @param Exception $e |
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103 | * @return array|int|null|string |
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104 | * @throws Exception |
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105 | */ |
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106 | protected function collect($key, Exception $e = null) { |
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107 | switch ($key) { |
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108 | case 'user_id': |
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109 | return $this->getUserId(); |
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110 | case 'method': |
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111 | return $this->getMethod(); |
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112 | case 'url': |
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113 | return $this->getUrl(); |
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114 | case 'data': |
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115 | return $this->getData(); |
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116 | case 'ip': |
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117 | return $this->getIp(); |
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118 | case 'status_code': |
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119 | if ($e === null) { |
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120 | return 0; |
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121 | } |
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122 | return $this->getStatusCode($e); |
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123 | default: |
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124 | throw new Exception("{$key} is not supported! Therefore it cannot be collected!"); |
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125 | } |
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126 | } |
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127 | |||
128 | /** |
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129 | * Gets the ID of the User that is logged in |
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130 | * @return integer|null The ID of the User or Null if not logged in |
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131 | */ |
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132 | protected function getUserId() { |
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133 | $user = Auth::user(); |
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134 | if (is_object($user) && !empty($user->id)) { |
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135 | return $user->id; |
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136 | } else { |
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137 | return null; |
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138 | } |
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139 | } |
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140 | |||
141 | /** |
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142 | * Gets the Method of the Request |
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143 | * @return string|null Possible values are null or GET, POST, DELETE, PUT, etc... |
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144 | */ |
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145 | protected function getMethod() { |
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146 | $method = Request::method(); |
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147 | if (!empty($method)) { |
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148 | return $method; |
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149 | } else { |
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150 | return null; |
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151 | } |
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152 | } |
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153 | |||
154 | /** |
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155 | * Gets the input data of the Request |
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156 | * @return array|null The Input data or null |
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157 | */ |
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158 | protected function getData() { |
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159 | $data = Input::all(); |
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160 | if (is_array($data)) { |
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161 | return $this->excludeKeys($data); |
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162 | } else { |
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163 | return null; |
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164 | } |
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165 | } |
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166 | |||
167 | /** |
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168 | * Gets the URL of the Request |
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169 | * @return string|null Returns a URL string or null |
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170 | */ |
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171 | protected function getUrl() { |
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172 | $url = Request::url(); |
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173 | if (is_string($url)) { |
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174 | return $url; |
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175 | } else { |
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176 | return null; |
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177 | } |
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178 | } |
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179 | |||
180 | /** |
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181 | * Returns the IP from the request |
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182 | * |
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183 | * @return string |
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184 | */ |
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185 | protected function getIp() { |
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188 | |||
189 | /** |
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190 | * Gets the status code of the Exception |
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191 | * @param Exception $e The Exception to check |
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192 | * @return string|integer The status code value |
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193 | */ |
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194 | protected function getStatusCode(Exception $e) { |
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195 | if ($e instanceof HttpExceptionInterface) { |
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201 | |||
202 | /** |
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203 | * This function will remove all keys from an array recursively as defined in the config file |
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204 | * @param array $data The array to remove keys from |
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205 | * @return void |
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206 | */ |
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207 | protected function excludeKeys(array $data) { |
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219 | } |
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220 |
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: