Complex classes like MslsPlugin 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 MslsPlugin, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 16 | class MslsPlugin { |
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| 17 | |||
| 18 | /** |
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| 19 | * @var MslsOptions |
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| 20 | */ |
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| 21 | protected $options; |
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| 22 | |||
| 23 | /** |
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| 24 | * @param MslsOptions $options |
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| 25 | */ |
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| 26 | public function __construct( MslsOptions $options ) { |
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| 29 | |||
| 30 | /** |
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| 31 | * Factory |
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| 32 | * |
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| 33 | * @codeCoverageIgnore |
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| 34 | * |
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| 35 | * @return MslsPlugin |
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| 36 | */ |
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| 37 | public static function init() { |
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| 92 | |||
| 93 | /** |
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| 94 | * @return MslsOutput |
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| 95 | */ |
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| 96 | public function get_output() { |
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| 105 | |||
| 106 | /** |
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| 107 | * Callback for action wp_head |
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| 108 | */ |
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| 109 | public function print_alternate_links() { |
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| 112 | |||
| 113 | /** |
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| 114 | * Filter for the_content() |
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| 115 | * |
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| 116 | * @package Msls |
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| 117 | * @uses MslsOptions |
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| 118 | * @param string $content |
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| 119 | * @return string |
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| 120 | */ |
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| 121 | function content_filter( $content ) { |
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| 132 | |||
| 133 | /** |
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| 134 | * Create filterstring for msls_content_filter() |
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| 135 | * |
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| 136 | * @package Msls |
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| 137 | * @uses MslsOutput |
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| 138 | * @param string $pref |
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| 139 | * @param string $post |
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| 140 | * @return string |
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| 141 | */ |
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| 142 | function filter_string( $pref = '<p id="msls">', $post = '</p>' ) { |
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| 180 | |||
| 181 | /** |
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| 182 | * Loads styles and some js if needed |
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| 183 | * |
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| 184 | * The methiod returns true if JS is loaded or false if not |
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| 185 | * |
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| 186 | * @return boolean |
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| 187 | */ |
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| 188 | public function admin_menu() { |
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| 211 | |||
| 212 | /** |
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| 213 | * Register widget |
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| 214 | * |
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| 215 | * The widget will only be registered if the current blog is not |
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| 216 | * excluded in the configuration of the plugin. |
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| 217 | * @return boolean |
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| 218 | */ |
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| 219 | public function init_widget() { |
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| 228 | |||
| 229 | /** |
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| 230 | * Load textdomain |
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| 231 | * |
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| 232 | * The method should be executed always on init because we have some |
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| 233 | * translatable string in the frontend too. |
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| 234 | * |
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| 235 | * @return boolean |
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| 236 | */ |
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| 237 | public function init_i18n_support() { |
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| 244 | |||
| 245 | /** |
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| 246 | * Message handler |
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| 247 | * |
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| 248 | * Prints a message box to the screen. |
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| 249 | * @param string $message |
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| 250 | * @param string $css_class |
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| 251 | * @return boolean |
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| 252 | */ |
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| 253 | public static function message_handler( $message, $css_class = 'error' ) { |
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| 266 | |||
| 267 | /** |
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| 268 | * Activate plugin |
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| 269 | */ |
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| 270 | public static function activate(){ |
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| 273 | |||
| 274 | /** |
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| 275 | * Uninstall plugin |
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| 276 | * |
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| 277 | * The plugin data in all blogs of the current network will be |
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| 278 | * deleted after the uninstall procedure. |
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| 279 | * |
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| 280 | * @return boolean |
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| 281 | */ |
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| 282 | public static function uninstall() { |
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| 308 | |||
| 309 | /** |
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| 310 | * Cleanup the options |
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| 311 | * |
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| 312 | * Removes all values of the current blogs which are stored in the |
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| 313 | * options-table and returns true if it was successful. |
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| 314 | * |
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| 315 | * @return boolean |
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| 316 | */ |
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| 317 | public static function cleanup() { |
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| 330 | |||
| 331 | /** |
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| 332 | * Get specific vars from $_POST and $_GET in a safe way |
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| 333 | * @param array $list |
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| 334 | * @return array |
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| 335 | */ |
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| 336 | public static function get_superglobals( array $list ) { |
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| 352 | |||
| 353 | } |
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| 354 |