Complex classes like ResourceMapTrait 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 ResourceMapTrait, and based on these observations, apply Extract Interface, too.
1 | <?php |
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12 | trait ResourceMapTrait |
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13 | { |
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14 | /** |
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15 | * @var string |
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16 | */ |
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17 | private $sTitle; |
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18 | |||
19 | /** |
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20 | * @var array |
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21 | */ |
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22 | private $aResources = []; |
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23 | |||
24 | /** |
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25 | * @return string |
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26 | * @throws ExceptionSitemap |
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27 | */ |
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28 | abstract public function getModulePath(); |
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29 | |||
30 | /** |
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31 | * @param string $sTitle |
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32 | */ |
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33 | 1 | public function setTitle($sTitle) { |
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36 | |||
37 | /** |
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38 | * @return string |
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39 | */ |
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40 | 20 | public function getTitle() { |
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43 | |||
44 | |||
45 | /** |
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46 | * @param array $aResources |
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47 | */ |
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48 | 1 | public function setResources($aResources) { |
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51 | |||
52 | /** |
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53 | * @param ResourceMapTrait $oMap |
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54 | */ |
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55 | 22 | protected function mergeResources($oMap) { |
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80 | |||
81 | /** |
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82 | * @param $sVar |
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83 | * @return void |
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84 | */ |
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85 | 1 | public function removeHeader($sVar) { |
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88 | |||
89 | /** |
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90 | * @param $sVar |
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91 | * @param $sVal |
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92 | * @return void |
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93 | */ |
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94 | 1 | public function addHeader($sVar, $sVal) { |
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97 | |||
98 | /** |
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99 | * @param $sVar |
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100 | * @param $sVal |
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101 | * @return void |
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102 | */ |
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103 | 1 | public function addSetting($sVar, $sVal) { |
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106 | |||
107 | /** |
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108 | * @param string $sPath |
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109 | * @return string |
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110 | */ |
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111 | private function getResourcePath($sPath) { |
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122 | |||
123 | /** |
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124 | * @param string $sPath |
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125 | * @param string $sMedia |
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126 | */ |
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127 | 1 | public function addStyle($sPath, $sMedia = 'screen') { |
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130 | |||
131 | /** |
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132 | * Adds a path for a JavaScript resource |
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133 | * @param string $sPath |
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134 | * @param bool $bInHead |
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135 | */ |
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136 | 2 | public function addScript($sPath, $bInHead = false) { |
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140 | |||
141 | /** |
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142 | * @param string $sType The type of the link element (eg, application/rss+xml or image/png) |
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143 | * @param string $aData The rest of the link's attributes (href, rel, s/a) |
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144 | * @return void |
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145 | */ |
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146 | 1 | public function addLink($sType, $aData) { |
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155 | |||
156 | /** |
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157 | * @param string $sName |
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158 | * @param string $sValue |
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159 | * @return void |
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160 | */ |
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161 | 2 | public function addMeta($sName, $sValue) { |
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164 | |||
165 | /** |
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166 | * @param string $sType |
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167 | * @return array |
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168 | */ |
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169 | 20 | public function getResources($sType = null) { |
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182 | |||
183 | /** |
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184 | * @param null $sMedia |
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185 | * @return array|null |
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186 | */ |
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187 | 1 | public function getStyles($sMedia = null) { |
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196 | |||
197 | /** |
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198 | * @param null $sName |
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199 | * @return array|string |
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200 | */ |
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201 | 3 | public function getMetas($sName = null) { |
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209 | |||
210 | /** |
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211 | * @param bool $bInHead |
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212 | * @return array |
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213 | */ |
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214 | 1 | public function getScripts($bInHead = false) { |
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225 | |||
226 | /** |
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227 | * @return array |
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228 | */ |
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229 | 1 | public function getSettings() { |
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232 | |||
233 | /** |
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234 | * @param string $sType |
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235 | * @return array |
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236 | */ |
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237 | 2 | public function getLinks($sType = null) { |
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250 | |||
251 | /** |
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252 | * @param string $sVar |
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253 | * @return array|string |
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254 | */ |
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255 | 1 | public function getSetting($sVar) { |
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264 | |||
265 | /** |
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266 | * @return array |
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267 | */ |
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268 | 2 | public function getHeaders() { |
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271 | |||
272 | } |
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273 |