Complex classes like Grid 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 Grid, and based on these observations, apply Extract Interface, too.
1 | <?php |
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16 | class Grid |
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17 | { |
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18 | /** |
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19 | * @var string |
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20 | */ |
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21 | private $code; |
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22 | |||
23 | /** |
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24 | * @var string |
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25 | */ |
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26 | private $driver; |
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27 | |||
28 | /** |
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29 | * @var array |
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30 | */ |
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31 | private $driverConfiguration; |
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32 | |||
33 | /** |
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34 | * @var array |
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35 | */ |
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36 | private $sorting = []; |
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37 | |||
38 | /** |
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39 | * @var array |
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40 | */ |
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41 | private $limits = []; |
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42 | |||
43 | /** |
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44 | * @var array |
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45 | */ |
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46 | private $fields = []; |
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47 | |||
48 | /** |
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49 | * @var array |
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50 | */ |
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51 | private $filters = []; |
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52 | |||
53 | /** |
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54 | * @var array |
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55 | */ |
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56 | private $actionGroups = []; |
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57 | |||
58 | /** |
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59 | * @param string $code |
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60 | * @param string $driver |
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61 | * @param array $driverConfiguration |
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62 | */ |
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63 | private function __construct($code, $driver, array $driverConfiguration) |
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69 | |||
70 | /** |
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71 | * @param string $code |
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72 | * @param string $driver |
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73 | * @param array $driverConfiguration |
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74 | * |
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75 | * @return self |
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76 | */ |
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77 | public static function fromCodeAndDriverConfiguration($code, $driver, array $driverConfiguration) |
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81 | |||
82 | /** |
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83 | * @return string |
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84 | */ |
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85 | public function getCode() |
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89 | |||
90 | /** |
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91 | * @return string |
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92 | */ |
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93 | public function getDriver() |
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97 | |||
98 | /** |
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99 | * @return array |
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100 | */ |
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101 | public function getDriverConfiguration() |
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105 | |||
106 | /** |
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107 | * @param array $driverConfiguration |
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108 | */ |
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109 | public function setDriverConfiguration(array $driverConfiguration) |
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113 | |||
114 | /** |
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115 | * @return array |
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116 | */ |
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117 | public function getSorting() |
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121 | |||
122 | /** |
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123 | * @param array $sorting |
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124 | */ |
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125 | public function setSorting(array $sorting) |
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129 | |||
130 | /** |
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131 | * @return array |
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132 | */ |
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133 | public function getLimits() |
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137 | |||
138 | /** |
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139 | * @param array $limits |
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140 | */ |
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141 | public function setLimits(array $limits) |
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145 | |||
146 | /** |
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147 | * @return array |
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148 | */ |
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149 | public function getFields() |
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153 | |||
154 | /** |
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155 | * @return array |
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156 | */ |
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157 | public function getEnabledFields() |
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161 | |||
162 | /** |
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163 | * @param Field $field |
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164 | */ |
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165 | public function addField(Field $field) |
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175 | |||
176 | /** |
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177 | * @param string $name |
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178 | */ |
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179 | public function removeField($name) |
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185 | |||
186 | /** |
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187 | * @param string $name |
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188 | * |
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189 | * @return Field |
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190 | */ |
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191 | public function getField($name) |
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199 | |||
200 | /** |
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201 | * @param Field $field |
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202 | */ |
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203 | public function setField(Field $field) |
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209 | |||
210 | /** |
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211 | * @param string $name |
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212 | * |
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213 | * @return bool |
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214 | */ |
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215 | public function hasField($name) |
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219 | |||
220 | /** |
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221 | * @return array |
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222 | */ |
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223 | public function getActionGroups() |
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227 | |||
228 | /** |
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229 | * @return array |
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230 | */ |
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231 | public function getEnabledActionGroups() |
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235 | |||
236 | /** |
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237 | * @param ActionGroup $actionGroup |
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238 | */ |
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239 | public function addActionGroup(ActionGroup $actionGroup) |
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249 | |||
250 | /** |
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251 | * @param string $name |
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252 | */ |
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253 | public function removeActionGroup($name) |
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259 | |||
260 | /** |
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261 | * @param string $name |
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262 | * |
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263 | * @return ActionGroup |
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264 | */ |
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265 | public function getActionGroup($name) |
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273 | |||
274 | /** |
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275 | * @param ActionGroup $actionGroup |
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276 | */ |
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277 | public function setActionGroup(ActionGroup $actionGroup) |
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283 | |||
284 | /** |
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285 | * @param string $groupName |
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286 | * |
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287 | * @return Action[] |
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288 | */ |
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289 | public function getActions($groupName) |
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293 | |||
294 | /** |
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295 | * @return array |
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296 | */ |
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297 | public function getEnabledActions($groupName) |
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301 | |||
302 | /** |
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303 | * @param string $name |
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304 | * |
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305 | * @return bool |
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306 | */ |
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307 | public function hasActionGroup($name) |
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311 | |||
312 | /** |
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313 | * @return array |
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314 | */ |
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315 | public function getFilters() |
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319 | |||
320 | /** |
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321 | * @return array |
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322 | */ |
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323 | public function getEnabledFilters() |
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327 | |||
328 | /** |
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329 | * @param Filter $filter |
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330 | */ |
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331 | public function addFilter(Filter $filter) |
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339 | |||
340 | /** |
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341 | * @param string $name |
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342 | */ |
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343 | public function removeFilter($name) |
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349 | |||
350 | /** |
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351 | * @param string $name |
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352 | * |
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353 | * @return Filter |
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354 | */ |
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355 | public function getFilter($name) |
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363 | |||
364 | /** |
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365 | * @param Filter $filter |
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366 | */ |
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367 | public function setFilter(Filter $filter) |
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373 | |||
374 | /** |
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375 | * @param string $name |
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376 | * |
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377 | * @return bool |
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378 | */ |
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379 | public function hasFilter($name) |
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383 | |||
384 | /** |
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385 | * @param array $items |
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386 | * |
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387 | * @return array |
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388 | */ |
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389 | private function getEnabledItems(array $items) |
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400 | } |
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401 |