pods-framework /
pods
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like PodsField_Link 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 PodsField_Link, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 5 | class PodsField_Link extends PodsField { |
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| 6 | |||
| 7 | /** |
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| 8 | * Field Type Group |
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| 9 | * |
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| 10 | * @var string |
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| 11 | * @since 2.0 |
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| 12 | */ |
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| 13 | public static $group = 'Text'; |
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| 14 | |||
| 15 | /** |
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| 16 | * Field Type Identifier |
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| 17 | * |
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| 18 | * @var string |
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| 19 | * @since 2.0 |
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| 20 | */ |
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| 21 | public static $type = 'link'; |
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| 22 | |||
| 23 | /** |
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| 24 | * Field Type Label |
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| 25 | * |
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| 26 | * @var string |
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| 27 | * @since 2.0 |
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| 28 | */ |
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| 29 | public static $label = 'Link'; |
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| 30 | |||
| 31 | /** |
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| 32 | * Field Type Preparation |
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| 33 | * |
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| 34 | * @var string |
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| 35 | * @since 2.0 |
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| 36 | */ |
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| 37 | public static $prepare = '%s'; |
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| 38 | |||
| 39 | /** |
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| 40 | * Do things like register/enqueue scripts and stylesheets |
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| 41 | * |
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| 42 | * @since 2.0 |
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| 43 | */ |
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| 44 | public function __construct () { |
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| 47 | |||
| 48 | /** |
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| 49 | * Add options and set defaults to |
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| 50 | * |
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| 51 | * @param array $options |
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| 52 | * |
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| 53 | * @since 2.0 |
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| 54 | */ |
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| 55 | public function options () { |
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| 127 | |||
| 128 | /** |
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| 129 | * Define the current field's schema for DB table storage |
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| 130 | * |
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| 131 | * @param array $options |
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| 132 | * |
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| 133 | * @return array |
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| 134 | * @since 2.0 |
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| 135 | */ |
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| 136 | public function schema ( $options = null ) { |
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| 140 | |||
| 141 | /** |
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| 142 | * Change the value of the field |
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| 143 | * |
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| 144 | * @param mixed $value |
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| 145 | * @param string $name |
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| 146 | * @param array $options |
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| 147 | * @param array $pod |
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| 148 | * @param int $id |
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| 149 | * |
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| 150 | * @return mixed|null|string |
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| 151 | * @since 2.3 |
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| 152 | */ |
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| 153 | public function value ( $value = null, $name = null, $options = null, $pod = null, $id = null ) { |
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| 156 | |||
| 157 | /** |
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| 158 | * Change the way the value of the field is displayed with Pods::get |
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| 159 | * |
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| 160 | * @param mixed $value |
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| 161 | * @param string $name |
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| 162 | * @param array $options |
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| 163 | * @param array $pod |
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| 164 | * @param int $id |
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| 165 | * |
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| 166 | * @return mixed|null|string |
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| 167 | * @since 2.0 |
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| 168 | */ |
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| 169 | public function display ( $value = null, $name = null, $options = null, $pod = null, $id = null ) { |
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| 215 | |||
| 216 | /** |
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| 217 | * Customize output of the form field |
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| 218 | * |
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| 219 | * @param string $name |
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| 220 | * @param mixed $value |
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| 221 | * @param array $options |
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| 222 | * @param array $pod |
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| 223 | * @param int $id |
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| 224 | * |
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| 225 | * @since 2.0 |
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| 226 | */ |
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| 227 | public function input ( $name, $value = null, $options = null, $pod = null, $id = null ) { |
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| 233 | |||
| 234 | /** |
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| 235 | * Validate a value before it's saved |
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| 236 | * |
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| 237 | * @param mixed $value |
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| 238 | * @param string $name |
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| 239 | * @param array $options |
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| 240 | * @param array $fields |
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| 241 | * @param array $pod |
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| 242 | * @param int $id |
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| 243 | * |
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| 244 | * @since 2.0 |
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| 245 | */ |
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| 246 | public function validate ( $value, $name = null, $options = null, $fields = null, $pod = null, $id = null, $params = null ) { |
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| 269 | |||
| 270 | /** |
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| 271 | * Change the value or perform actions after validation but before saving to the DB |
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| 272 | * |
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| 273 | * @param mixed $value |
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| 274 | * @param int $id |
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| 275 | * @param string $name |
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| 276 | * @param array $options |
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| 277 | * @param array $fields |
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| 278 | * @param array $pod |
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| 279 | * @param object $params |
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| 280 | * |
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| 281 | * @since 2.0 |
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| 282 | */ |
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| 283 | public function pre_save ( $value, $id = null, $name = null, $options = null, $fields = null, $pod = null, $params = null ) { |
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| 303 | |||
| 304 | /** |
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| 305 | * Customize the Pods UI manage table column output |
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| 306 | * |
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| 307 | * @param int $id |
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| 308 | * @param mixed $value |
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| 309 | * @param string $name |
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| 310 | * @param array $options |
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| 311 | * @param array $fields |
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| 312 | * @param array $pod |
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| 313 | * |
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| 314 | * @since 2.0 |
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| 315 | */ |
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| 316 | public function ui ( $id, $value, $name = null, $options = null, $fields = null, $pod = null ) { |
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| 322 | |||
| 323 | /** |
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| 324 | * Validate an URL with the options |
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| 325 | * |
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| 326 | * @param string $value |
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| 327 | * @param array $options |
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| 328 | * |
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| 329 | * @since 2.0 |
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| 330 | */ |
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| 331 | public function validate_url( $value, $options = null ) { |
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| 412 | |||
| 413 | /** |
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| 414 | * Validate an targit attribute with the options |
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| 415 | * |
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| 416 | * @param string $value |
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| 417 | * @param array $options |
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| 418 | * |
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| 419 | * @since 2.0 |
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| 420 | */ |
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| 421 | public function validate_target( $value, $options = null ) { |
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| 429 | |||
| 430 | /** |
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| 431 | * Build an url |
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| 432 | * |
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| 433 | * @param array|string $url |
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| 434 | * |
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| 435 | * @return string |
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| 436 | */ |
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| 437 | View Code Duplication | public function build_url ( $url ) { |
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| 461 | |||
| 462 | |||
| 463 | /** |
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| 464 | * Strip HTML based on options |
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| 465 | * |
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| 466 | * @param string $value |
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| 467 | * @param array $options |
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| 468 | * |
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| 469 | * @return string |
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| 470 | */ |
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| 471 | View Code Duplication | public function strip_html ( $value, $options = null ) { |
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| 498 | |||
| 499 | } |
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| 500 |
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This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function.
Consider the following example. The parameter
$italyis not defined by the methodfinale(...).The most likely cause is that the parameter was removed, but the annotation was not.