Complex classes like FieldConfig 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 FieldConfig, and based on these observations, apply Extract Interface, too.
1 | <?php |
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13 | class FieldConfig |
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14 | { |
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15 | /** |
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16 | * Field name. |
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17 | * |
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18 | * @var string |
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19 | */ |
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20 | protected $name; |
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21 | |||
22 | /** |
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23 | * Text label that will be rendered in table header. |
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24 | * |
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25 | * @var string |
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26 | */ |
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27 | protected $label; |
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28 | |||
29 | /** |
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30 | * @var int |
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31 | */ |
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32 | protected $order = 0; |
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33 | |||
34 | /** |
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35 | * @var bool |
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36 | */ |
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37 | protected $is_sortable = false; |
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38 | |||
39 | /** |
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40 | * @var string|null |
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41 | */ |
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42 | protected $sortable_column; |
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43 | |||
44 | protected $sorting; |
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45 | |||
46 | /** @var Collection|FilterConfig[] */ |
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47 | protected $filters; |
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48 | |||
49 | /** @var callable */ |
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50 | protected $callback; |
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51 | |||
52 | protected $is_hidden = false; |
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53 | |||
54 | /** |
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55 | * Constructor. |
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56 | * |
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57 | * @param string|null $name column unique name for internal usage |
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58 | * @param string|null $label column label |
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59 | */ |
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60 | public function __construct($name = null, $label = null) |
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69 | |||
70 | /** |
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71 | * Returns column order. |
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72 | * |
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73 | * This property used to to identify column position in grid. |
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74 | * |
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75 | * @return int |
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76 | */ |
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77 | public function getOrder() |
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81 | |||
82 | /** |
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83 | * Sets column order. |
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84 | * |
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85 | * This property used to to identify column position in grid. |
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86 | * |
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87 | * @param $order |
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88 | * @return $this |
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89 | */ |
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90 | public function setOrder($order) |
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96 | |||
97 | /** |
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98 | * Returns field name. |
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99 | * |
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100 | * @return string |
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101 | */ |
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102 | public function getName() |
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106 | |||
107 | /** |
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108 | * Sets field name. |
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109 | * |
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110 | * @param string $name |
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111 | * @return $this |
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112 | */ |
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113 | public function setName($name) |
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119 | |||
120 | /** |
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121 | * Returns the sortable name. |
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122 | * |
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123 | * @returns string |
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124 | */ |
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125 | public function getSortableName() |
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133 | |||
134 | /** |
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135 | * Sets field name. |
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136 | * |
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137 | * @param string|null $name |
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138 | * @return $this|string |
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139 | */ |
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140 | public function name($name = null) |
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150 | |||
151 | /** |
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152 | * Returns true if column is hidden. |
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153 | * |
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154 | * @return bool |
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155 | */ |
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156 | public function isHidden() |
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160 | |||
161 | /** |
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162 | * Makes column hidden. |
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163 | * |
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164 | * @return $this |
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165 | */ |
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166 | public function hide() |
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172 | |||
173 | /** |
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174 | * Makes column visible. |
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175 | * |
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176 | * @return $this |
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177 | */ |
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178 | public function show() |
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184 | |||
185 | /** |
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186 | * Returns text label that will be rendered in table header. |
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187 | * |
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188 | * @return string |
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189 | */ |
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190 | public function getLabel() |
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194 | |||
195 | /** |
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196 | * Sets text label that will be rendered in table header. |
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197 | * |
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198 | * @param string $label |
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199 | * @return $this |
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200 | */ |
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201 | public function setLabel($label) |
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207 | |||
208 | /** |
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209 | * Sets text label that will be rendered in table header. |
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210 | * |
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211 | * @param string|null $label |
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212 | * @return $this|string |
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213 | */ |
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214 | public function label($label = null) |
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224 | |||
225 | /** |
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226 | * Returns true if column is sortable (sorting controls must be rendered). |
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227 | * |
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228 | * @return bool |
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229 | */ |
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230 | public function isSortable() |
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234 | |||
235 | /** |
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236 | * Allows to enable or disable sorting controls for column. |
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237 | * |
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238 | * @param boolean $isSortable |
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239 | * @param string|null $sortableColumn |
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240 | * @return $this |
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241 | */ |
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242 | public function setSortable($isSortable, $sortableColumn = null) |
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249 | |||
250 | /** |
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251 | * Allows to enable or disable sorting controls for column. |
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252 | * |
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253 | * @param boolean|null $isSortable |
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254 | * @param string|null $sortableColumn by default we use the field name to sort, but in some cases may be different |
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255 | * name, for example, the relation column is 'profile.nickname' and inner join is 'profiles.nickname'. |
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256 | * @return $this|boolean |
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257 | */ |
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258 | public function sortable($isSortable, $sortableColumn = null) |
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269 | |||
270 | /** |
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271 | * Returns current sorting order |
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272 | * or null if table rows are not sorted using this column. |
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273 | * |
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274 | * @return null|string null|Grid::SORT_ASC|Grid::SORT_DESC |
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275 | */ |
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276 | public function getSorting() |
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280 | |||
281 | /** |
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282 | * Allows to specify sorting by this column for data rows. |
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283 | * |
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284 | * @param null|string $sortOrder null|Grid::SORT_ASC|Grid::SORT_DESC |
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285 | * @return $this |
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286 | */ |
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287 | public function setSorting($sortOrder) |
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293 | |||
294 | /** |
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295 | * Allows to specify sorting by this column for data rows. |
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296 | * |
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297 | * @param null|string|boolean $sortOrder null|Grid::SORT_ASC|Grid::SORT_DESC|false |
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298 | * @return $this |
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299 | */ |
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300 | public function sorting($sortOrder = false) |
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310 | |||
311 | /** |
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312 | * Returns true if data rows are sorted ascending using this column. |
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313 | * |
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314 | * @return bool |
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315 | */ |
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316 | public function isSortedAsc() |
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320 | |||
321 | /** |
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322 | * Returns true if data rows are sorted descending using this column. |
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323 | * |
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324 | * @return bool |
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325 | */ |
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326 | public function isSortedDesc() |
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330 | |||
331 | /** |
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332 | * Allows to set callback function that will render |
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333 | * content of table cells for this column. |
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334 | * |
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335 | * @param callable $callback |
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336 | * @return $this |
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337 | */ |
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338 | public function setCallback($callback) |
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344 | |||
345 | /** |
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346 | * Returns function that will render |
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347 | * content of table cells for this column if specified. |
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348 | * |
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349 | * @return callable|null |
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350 | */ |
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351 | public function getCallback() |
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355 | |||
356 | /** |
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357 | * Allows to set callback function that will render |
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358 | * content of table cells for this column. |
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359 | * |
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360 | * @param string|null $callback |
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361 | * @return $this|callable|null |
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362 | */ |
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363 | public function callback($callback = null) |
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373 | |||
374 | /** |
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375 | * Allows to specify filtering controls for column. |
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376 | * |
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377 | * @param Collection|FilterConfig[] $filters |
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378 | * @return $this |
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379 | */ |
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380 | public function setFilters($filters) |
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389 | |||
390 | /** |
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391 | * Allows to specify filtering controls for column. |
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392 | * |
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393 | * @param Collection|FilterConfig[]|null $filters |
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394 | * @return $this|Collection|FilterConfig[] |
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395 | */ |
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396 | public function filters($filters = null) |
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409 | |||
410 | /** |
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411 | * Allows to add filtering control to column. |
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412 | * |
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413 | * @param FilterConfig $filter |
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414 | * @return $this |
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415 | */ |
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416 | public function addFilter(FilterConfig $filter) |
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423 | |||
424 | /** |
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425 | * Allows to add filtering control to column. |
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426 | * |
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427 | * @param FilterConfig $filter |
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428 | * @return $this |
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429 | */ |
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430 | public function filter(FilterConfig $filter) |
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436 | |||
437 | /** |
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438 | * Creates instance of filtering control configuration |
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439 | * and binds it to the column. |
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440 | * |
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441 | * @param string $class |
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442 | * @return FilterConfig |
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443 | */ |
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444 | public function makeFilter($class = '\Nayjest\Grids\FilterConfig') |
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451 | |||
452 | /** |
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453 | * Returns true if any filtering controls specified for the column. |
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454 | * |
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455 | * @return bool |
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456 | */ |
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457 | public function hasFilters() |
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461 | |||
462 | /** |
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463 | * Returns list of filtering controls specified for the column. |
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464 | * |
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465 | * @return Collection|FilterConfig[] |
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466 | */ |
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467 | public function getFilters() |
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475 | |||
476 | /** |
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477 | * @todo move to Field instance |
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478 | * @param DataRowInterface $row |
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479 | * @return mixed |
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480 | */ |
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481 | public function getValue(DataRowInterface $row) |
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489 | } |
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490 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: