Complex classes like Column 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 Column, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 19 | class Column extends Fluent |
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| 20 | { |
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| 21 | /** |
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| 22 | * @param array $attributes |
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| 23 | */ |
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| 24 | public function __construct($attributes = []) |
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| 48 | |||
| 49 | /** |
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| 50 | * Format string to title case. |
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| 51 | * |
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| 52 | * @param string $value |
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| 53 | * @return string |
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| 54 | */ |
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| 55 | public static function titleFormat($value) |
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| 59 | |||
| 60 | /** |
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| 61 | * Create a computed column that is not searchable/orderable. |
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| 62 | * |
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| 63 | * @param string $data |
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| 64 | * @param string $title |
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| 65 | * @return Column |
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| 66 | */ |
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| 67 | public static function computed($data, $title = '') |
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| 75 | |||
| 76 | /** |
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| 77 | * Set column searchable flag. |
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| 78 | * |
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| 79 | * @param bool $flag |
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| 80 | * @return $this |
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| 81 | */ |
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| 82 | public function searchable(bool $flag = true) |
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| 88 | |||
| 89 | /** |
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| 90 | * Set column orderable flag. |
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| 91 | * |
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| 92 | * @param bool $flag |
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| 93 | * @return $this |
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| 94 | */ |
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| 95 | public function orderable(bool $flag = true) |
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| 101 | |||
| 102 | /** |
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| 103 | * Set column title. |
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| 104 | * |
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| 105 | * @param string $value |
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| 106 | * @return $this |
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| 107 | */ |
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| 108 | public function title($value) |
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| 114 | |||
| 115 | /** |
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| 116 | * Make a new column instance. |
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| 117 | * |
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| 118 | * @param string $data |
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| 119 | * @param string $name |
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| 120 | * @return Column |
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| 121 | */ |
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| 122 | public static function make($data, $name = '') |
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| 131 | |||
| 132 | /** |
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| 133 | * Create a checkbox column. |
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| 134 | * |
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| 135 | * @param string $title |
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| 136 | * @return Column |
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| 137 | */ |
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| 138 | public static function checkbox($title = '') |
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| 147 | |||
| 148 | /** |
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| 149 | * Set column class name. |
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| 150 | * |
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| 151 | * @param string $class |
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| 152 | * @return $this |
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| 153 | */ |
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| 154 | public function className($class) |
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| 160 | |||
| 161 | /** |
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| 162 | * Set column default content. |
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| 163 | * |
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| 164 | * @param string $value |
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| 165 | * @return $this |
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| 166 | */ |
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| 167 | public function content($value) |
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| 173 | |||
| 174 | /** |
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| 175 | * Set column visible flag. |
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| 176 | * |
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| 177 | * @param bool $flag |
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| 178 | * @return $this |
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| 179 | */ |
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| 180 | public function visible(bool $flag = true) |
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| 186 | |||
| 187 | /** |
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| 188 | * Append a class name to field. |
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| 189 | * |
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| 190 | * @param string $class |
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| 191 | * @return $this |
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| 192 | */ |
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| 193 | public function addClass($class) |
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| 203 | |||
| 204 | /** |
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| 205 | * Set column exportable flag. |
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| 206 | * |
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| 207 | * @param bool $flag |
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| 208 | * @return $this |
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| 209 | */ |
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| 210 | public function exportable(bool $flag = true) |
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| 216 | |||
| 217 | /** |
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| 218 | * Set column printable flag. |
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| 219 | * |
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| 220 | * @param bool $flag |
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| 221 | * @return $this |
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| 222 | */ |
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| 223 | public function printable(bool $flag = true) |
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| 229 | |||
| 230 | /** |
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| 231 | * Set column width value. |
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| 232 | * |
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| 233 | * @param int|string $value |
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| 234 | * @return $this |
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| 235 | */ |
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| 236 | public function width($value) |
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| 242 | |||
| 243 | /** |
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| 244 | * Set column name. |
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| 245 | * |
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| 246 | * @param string $value |
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| 247 | * @return $this |
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| 248 | */ |
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| 249 | public function name($value) |
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| 255 | |||
| 256 | /** |
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| 257 | * Set column renderer. |
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| 258 | * |
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| 259 | * @param mixed $value |
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| 260 | * @return $this |
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| 261 | */ |
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| 262 | public function render($value) |
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| 268 | |||
| 269 | /** |
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| 270 | * Parse render attribute. |
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| 271 | * |
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| 272 | * @param mixed $value |
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| 273 | * @return string|null |
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| 274 | */ |
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| 275 | public function parseRender($value) |
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| 296 | |||
| 297 | /** |
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| 298 | * Check if given key & value is a valid datatables built-in renderer function. |
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| 299 | * |
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| 300 | * @param string $value |
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| 301 | * @return bool |
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| 302 | */ |
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| 303 | private function isBuiltInRenderFunction($value) |
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| 311 | |||
| 312 | /** |
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| 313 | * Display render value as is. |
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| 314 | * |
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| 315 | * @param mixed $value |
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| 316 | * @return string |
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| 317 | */ |
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| 318 | private function parseRenderAsString($value) |
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| 322 | |||
| 323 | /** |
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| 324 | * @return array |
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| 325 | */ |
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| 326 | public function toArray() |
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| 330 | } |
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| 331 |