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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| 56 | { |
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| 57 | return Str::title(str_replace('_', ' ', $value)); |
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| 58 | } |
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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, $title = '') |
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| 68 | { |
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| 69 | if (empty($title)) { |
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| 70 | $title = self::titleFormat($data); |
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| 71 | } |
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| 72 | |||
| 73 | return static::make($data)->title($title)->orderable(false)->searchable(false); |
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| 74 | } |
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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 | * @see https://datatables.net/reference/option/columns.searchable |
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| 82 | */ |
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| 83 | public function searchable(bool $flag = true) |
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| 84 | { |
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| 85 | $this->attributes['searchable'] = $flag; |
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| 86 | |||
| 87 | return $this; |
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| 88 | } |
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| 89 | |||
| 90 | /** |
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| 91 | * Set column orderable flag. |
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| 92 | * |
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| 93 | * @param bool $flag |
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| 94 | * @return $this |
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| 95 | * @see https://datatables.net/reference/option/columns.orderable |
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| 96 | */ |
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| 97 | public function orderable(bool $flag = true) |
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| 98 | { |
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| 99 | $this->attributes['orderable'] = $flag; |
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| 100 | |||
| 101 | return $this; |
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| 102 | } |
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| 103 | |||
| 104 | /** |
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| 105 | * Set column title. |
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| 106 | * |
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| 107 | * @param string $value |
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| 108 | * @return $this |
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| 109 | * @see https://datatables.net/reference/option/columns.title |
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| 110 | */ |
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| 111 | public function title($value) |
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| 112 | { |
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| 113 | $this->attributes['title'] = $value; |
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| 114 | |||
| 115 | return $this; |
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| 116 | } |
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| 117 | |||
| 118 | /** |
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| 119 | * Make a new column instance. |
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| 120 | * |
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| 121 | * @param string $data |
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| 122 | * @param string $name |
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| 123 | * @return Column |
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| 124 | */ |
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| 125 | public static function make($data, $name = '') |
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| 126 | { |
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| 127 | $attr = [ |
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| 128 | 'data' => $data, |
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| 129 | 'name' => $name ?: $data, |
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| 130 | ]; |
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| 131 | |||
| 132 | return new static($attr); |
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| 133 | } |
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| 134 | |||
| 135 | /** |
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| 136 | * Create a checkbox column. |
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| 137 | * |
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| 138 | * @param string $title |
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| 139 | * @return Column |
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| 140 | */ |
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| 141 | public static function checkbox($title = '') |
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| 142 | { |
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| 143 | return static::make('') |
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| 144 | ->content('') |
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| 145 | ->title($title) |
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| 146 | ->className('select-checkbox') |
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| 147 | ->orderable(false) |
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| 148 | ->searchable(false); |
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| 149 | } |
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| 150 | |||
| 151 | /** |
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| 152 | * Set column class name. |
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| 153 | * |
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| 154 | * @param string $class |
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| 155 | * @return $this |
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| 156 | * @see https://datatables.net/reference/option/columns.className |
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| 157 | */ |
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| 158 | public function className($class) |
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| 159 | { |
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| 160 | $this->attributes['className'] = $class; |
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| 161 | |||
| 162 | return $this; |
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| 163 | } |
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| 164 | |||
| 165 | /** |
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| 166 | * Set column default content. |
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| 167 | * |
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| 168 | * @param string $value |
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| 169 | * @return $this |
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| 170 | * @see https://datatables.net/reference/option/columns.defaultContent |
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| 171 | */ |
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| 172 | public function content($value) |
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| 178 | |||
| 179 | /** |
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| 180 | * Set column visible flag. |
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| 181 | * |
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| 182 | * @param bool $flag |
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| 183 | * @return $this |
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| 184 | * @see https://datatables.net/reference/option/columns.visible |
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| 185 | */ |
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| 186 | public function visible(bool $flag = true) |
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| 192 | |||
| 193 | /** |
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| 194 | * Append a class name to field. |
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| 195 | * |
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| 196 | * @param string $class |
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| 197 | * @return $this |
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| 198 | */ |
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| 199 | public function addClass($class) |
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| 209 | |||
| 210 | /** |
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| 211 | * Set column exportable flag. |
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| 212 | * |
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| 213 | * @param bool $flag |
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| 214 | * @return $this |
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| 215 | */ |
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| 216 | public function exportable(bool $flag = true) |
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| 222 | |||
| 223 | /** |
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| 224 | * Set column printable flag. |
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| 225 | * |
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| 226 | * @param bool $flag |
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| 227 | * @return $this |
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| 228 | */ |
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| 229 | public function printable(bool $flag = true) |
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| 235 | |||
| 236 | /** |
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| 237 | * Set column width value. |
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| 238 | * |
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| 239 | * @param int|string $value |
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| 240 | * @return $this |
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| 241 | * @see https://datatables.net/reference/option/columns.width |
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| 242 | */ |
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| 243 | public function width($value) |
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| 249 | |||
| 250 | /** |
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| 251 | * Set column data option value. |
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| 252 | * |
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| 253 | * @param string $value |
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| 254 | * @return $this |
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| 255 | * @see https://datatables.net/reference/option/columns.data |
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| 256 | */ |
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| 257 | public function data($value) |
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| 263 | |||
| 264 | /** |
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| 265 | * Set column name option value. |
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| 266 | * |
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| 267 | * @param string $value |
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| 268 | * @return $this |
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| 269 | * @see https://datatables.net/reference/option/columns.name |
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| 270 | */ |
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| 271 | public function name($value) |
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| 277 | |||
| 278 | /** |
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| 279 | * Set column edit field option value. |
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| 280 | * |
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| 281 | * @param string $value |
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| 282 | * @return $this |
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| 283 | * @see https://datatables.net/reference/option/columns.editField |
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| 284 | */ |
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| 285 | public function editField($value) |
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| 291 | |||
| 292 | /** |
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| 293 | * Set column orderData option value. |
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| 294 | * |
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| 295 | * @param mixed $value |
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| 296 | * @return $this |
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| 297 | * @see https://datatables.net/reference/option/columns.orderData |
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| 298 | */ |
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| 299 | public function orderData($value) |
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| 305 | |||
| 306 | /** |
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| 307 | * Set column orderDataType option value. |
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| 308 | * |
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| 309 | * @param mixed $value |
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| 310 | * @return $this |
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| 311 | * @see https://datatables.net/reference/option/columns.orderDataType |
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| 312 | */ |
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| 313 | public function orderDataType($value) |
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| 319 | |||
| 320 | /** |
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| 321 | * Set column orderSequence option value. |
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| 322 | * |
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| 323 | * @param mixed $value |
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| 324 | * @return $this |
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| 325 | * @see https://datatables.net/reference/option/columns.orderSequence |
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| 326 | */ |
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| 327 | public function orderSequence($value) |
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| 333 | |||
| 334 | /** |
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| 335 | * Set column cellType option value. |
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| 336 | * |
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| 337 | * @param mixed $value |
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| 338 | * @return $this |
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| 339 | * @see https://datatables.net/reference/option/columns.cellType |
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| 340 | */ |
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| 341 | public function cellType($value) |
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| 347 | |||
| 348 | /** |
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| 349 | * Set column type option value. |
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| 350 | * |
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| 351 | * @param mixed $value |
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| 352 | * @return $this |
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| 353 | * @see https://datatables.net/reference/option/columns.type |
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| 354 | */ |
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| 355 | public function type($value) |
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| 361 | |||
| 362 | /** |
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| 363 | * Set column contentPadding option value. |
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| 364 | * |
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| 365 | * @param mixed $value |
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| 366 | * @return $this |
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| 367 | * @see https://datatables.net/reference/option/columns.contentPadding |
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| 368 | */ |
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| 369 | public function contentPadding($value) |
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| 375 | |||
| 376 | /** |
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| 377 | * Set column createdCell option value. |
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| 378 | * |
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| 379 | * @param mixed $value |
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| 380 | * @return $this |
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| 381 | * @see https://datatables.net/reference/option/columns.createdCell |
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| 382 | */ |
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| 383 | public function createdCell($value) |
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| 389 | |||
| 390 | /** |
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| 391 | * Set column renderer. |
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| 392 | * |
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| 393 | * @param mixed $value |
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| 394 | * @return $this |
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| 395 | * @see https://datatables.net/reference/option/columns.render |
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| 396 | */ |
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| 397 | public function render($value) |
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| 403 | |||
| 404 | /** |
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| 405 | * Parse render attribute. |
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| 406 | * |
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| 407 | * @param mixed $value |
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| 408 | * @return string|null |
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| 409 | */ |
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| 410 | public function parseRender($value) |
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| 431 | |||
| 432 | /** |
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| 433 | * Check if given key & value is a valid datatables built-in renderer function. |
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| 434 | * |
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| 435 | * @param string $value |
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| 436 | * @return bool |
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| 437 | */ |
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| 438 | private function isBuiltInRenderFunction($value) |
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| 446 | |||
| 447 | /** |
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| 448 | * Display render value as is. |
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| 449 | * |
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| 450 | * @param mixed $value |
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| 451 | * @return string |
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| 452 | */ |
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| 453 | private function parseRenderAsString($value) |
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| 457 | |||
| 458 | /** |
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| 459 | * @return array |
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| 460 | */ |
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| 461 | public function toArray() |
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| 465 | } |
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| 466 |