Complex classes like Timber 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 Timber, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 18 | class Timber { |
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| 19 | |||
| 20 | public static $locations; |
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| 21 | public static $dirname; |
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| 22 | public static $twig_cache = false; |
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| 23 | public static $cache = false; |
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| 24 | public static $auto_meta = true; |
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| 25 | public static $autoescape = false; |
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| 26 | |||
| 27 | /** |
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| 28 | * @codeCoverageIgnore |
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| 29 | */ |
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| 30 | public function __construct() { |
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| 38 | |||
| 39 | /** |
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| 40 | * Tests whether we can use Timber |
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| 41 | * @codeCoverageIgnore |
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| 42 | * @return |
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| 43 | */ |
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| 44 | protected function test_compatibility() { |
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| 55 | |||
| 56 | function init_constants() { |
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| 59 | |||
| 60 | /** |
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| 61 | * @codeCoverageIgnore |
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| 62 | */ |
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| 63 | protected function init() { |
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| 70 | |||
| 71 | /* Post Retrieval Routine |
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| 72 | ================================ */ |
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| 73 | |||
| 74 | /** |
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| 75 | * Get post. |
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| 76 | * |
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| 77 | * @param mixed $query |
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| 78 | * @param string $PostClass |
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| 79 | * @return array|bool|null |
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| 80 | */ |
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| 81 | public static function get_post( $query = false, $PostClass = 'TimberPost' ) { |
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| 84 | |||
| 85 | /** |
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| 86 | * Get posts. |
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| 87 | * |
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| 88 | * @param mixed $query |
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| 89 | * @param string $PostClass |
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| 90 | * @return array|bool|null |
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| 91 | */ |
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| 92 | public static function get_posts( $query = false, $PostClass = 'TimberPost', $return_collection = false ) { |
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| 95 | |||
| 96 | /** |
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| 97 | * Query post. |
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| 98 | * |
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| 99 | * @param mixed $query |
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| 100 | * @param string $PostClass |
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| 101 | * @return array|bool|null |
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| 102 | */ |
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| 103 | public static function query_post( $query = false, $PostClass = 'TimberPost' ) { |
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| 106 | |||
| 107 | /** |
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| 108 | * Query posts. |
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| 109 | * |
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| 110 | * @param mixed $query |
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| 111 | * @param string $PostClass |
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| 112 | * @return array|bool|null |
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| 113 | */ |
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| 114 | public static function query_posts( $query = false, $PostClass = 'TimberPost' ) { |
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| 117 | |||
| 118 | /** |
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| 119 | * WP_Query has posts. |
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| 120 | * |
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| 121 | * @return bool |
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| 122 | * @deprecated since 0.20.0 |
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| 123 | */ |
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| 124 | static function wp_query_has_posts() { |
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| 127 | |||
| 128 | /* Term Retrieval |
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| 129 | ================================ */ |
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| 130 | |||
| 131 | /** |
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| 132 | * Get terms. |
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| 133 | * |
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| 134 | * @param string|array $args |
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| 135 | * @param array $maybe_args |
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| 136 | * @param string $TermClass |
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| 137 | * @return mixed |
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| 138 | */ |
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| 139 | public static function get_terms( $args = null, $maybe_args = array(), $TermClass = 'TimberTerm' ) { |
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| 142 | |||
| 143 | /* Site Retrieval |
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| 144 | ================================ */ |
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| 145 | |||
| 146 | /** |
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| 147 | * Get sites. |
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| 148 | * |
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| 149 | * @param array|bool $blog_ids |
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| 150 | * @return array |
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| 151 | */ |
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| 152 | public static function get_sites( $blog_ids = false ) { |
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| 163 | |||
| 164 | |||
| 165 | /* Template Setup and Display |
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| 166 | ================================ */ |
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| 167 | |||
| 168 | /** |
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| 169 | * Get context. |
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| 170 | * |
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| 171 | * @return array |
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| 172 | */ |
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| 173 | public static function get_context() { |
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| 190 | |||
| 191 | /** |
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| 192 | * Compile function. |
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| 193 | * |
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| 194 | * @param array $filenames |
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| 195 | * @param array $data |
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| 196 | * @param bool $expires |
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| 197 | * @param string $cache_mode |
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| 198 | * @param bool $via_render |
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| 199 | * @return bool|string |
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| 200 | */ |
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| 201 | public static function compile( $filenames, $data = array(), $expires = false, $cache_mode = TimberLoader::CACHE_USE_DEFAULT, $via_render = false ) { |
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| 224 | |||
| 225 | /** |
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| 226 | * Compile string. |
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| 227 | * |
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| 228 | * @param string $string a string with twig variables. |
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| 229 | * @param array $data an array with data in it. |
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| 230 | * @return bool|string |
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| 231 | */ |
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| 232 | public static function compile_string( $string, $data = array() ) { |
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| 241 | |||
| 242 | /** |
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| 243 | * Fetch function. |
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| 244 | * |
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| 245 | * @param array $filenames |
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| 246 | * @param array $data |
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| 247 | * @param bool $expires |
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| 248 | * @param string $cache_mode |
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| 249 | * @return bool|string |
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| 250 | */ |
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| 251 | public static function fetch( $filenames, $data = array(), $expires = false, $cache_mode = TimberLoader::CACHE_USE_DEFAULT ) { |
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| 262 | |||
| 263 | /** |
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| 264 | * Render function. |
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| 265 | * |
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| 266 | * @param array $filenames |
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| 267 | * @param array $data |
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| 268 | * @param bool $expires |
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| 269 | * @param string $cache_mode |
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| 270 | * @return bool|string |
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| 271 | */ |
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| 272 | public static function render( $filenames, $data = array(), $expires = false, $cache_mode = TimberLoader::CACHE_USE_DEFAULT ) { |
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| 277 | |||
| 278 | /** |
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| 279 | * Render string. |
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| 280 | * |
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| 281 | * @param string $string a string with twig variables. |
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| 282 | * @param array $data an array with data in it. |
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| 283 | * @return bool|string |
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| 284 | */ |
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| 285 | public static function render_string( $string, $data = array() ) { |
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| 290 | |||
| 291 | |||
| 292 | /* Sidebar |
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| 293 | ================================ */ |
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| 294 | |||
| 295 | /** |
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| 296 | * Get sidebar. |
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| 297 | * |
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| 298 | * @param string $sidebar |
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| 299 | * @param array $data |
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| 300 | * @return bool|string |
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| 301 | */ |
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| 302 | public static function get_sidebar( $sidebar = '', $data = array() ) { |
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| 311 | |||
| 312 | /** |
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| 313 | * Get sidebar from PHP |
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| 314 | * |
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| 315 | * @param string $sidebar |
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| 316 | * @param array $data |
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| 317 | * @return string |
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| 318 | */ |
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| 319 | public static function get_sidebar_from_php( $sidebar = '', $data ) { |
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| 339 | |||
| 340 | /* Widgets |
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| 341 | ================================ */ |
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| 342 | |||
| 343 | /** |
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| 344 | * Get widgets. |
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| 345 | * |
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| 346 | * @param int $widget_id |
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| 347 | * @return TimberFunctionWrapper |
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| 348 | */ |
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| 349 | public static function get_widgets( $widget_id ) { |
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| 352 | |||
| 353 | |||
| 354 | /* Routes |
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| 355 | ================================ */ |
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| 356 | |||
| 357 | /** |
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| 358 | * Add route. |
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| 359 | * |
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| 360 | * @param string $route |
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| 361 | * @param callable $callback |
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| 362 | * @param array $args |
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| 363 | * @deprecated since 0.20.0 |
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| 364 | */ |
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| 365 | public static function add_route( $route, $callback, $args = array() ) { |
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| 368 | |||
| 369 | /** |
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| 370 | * Load template. |
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| 371 | * |
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| 372 | * @deprecated since 0.20.0 |
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| 373 | */ |
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| 374 | public static function load_template( $template, $query = false, $status_code = 200, $tparams = false ) { |
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| 377 | |||
| 378 | /** |
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| 379 | * Load view. |
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| 380 | * |
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| 381 | * @deprecated since 0.20.2 |
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| 382 | */ |
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| 383 | public static function load_view( $template, $query = false, $status_code = 200, $tparams = false ) { |
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| 386 | |||
| 387 | |||
| 388 | /* Pagination |
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| 389 | ================================ */ |
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| 390 | |||
| 391 | /** |
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| 392 | * Get pagination. |
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| 393 | * |
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| 394 | * @param array $prefs |
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| 395 | * @return array mixed |
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| 396 | */ |
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| 397 | public static function get_pagination( $prefs = array() ) { |
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| 440 | |||
| 441 | /* Utility |
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| 442 | ================================ */ |
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| 443 | |||
| 444 | /** |
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| 445 | * Get calling script dir. |
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| 446 | * |
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| 447 | * @return string |
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| 448 | */ |
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| 449 | public static function get_calling_script_dir( $offset = 0 ) { |
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| 457 | |||
| 458 | /** |
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| 459 | * Get calling script file. |
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| 460 | * |
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| 461 | * @param int $offset |
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| 462 | * @return string|null |
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| 463 | * @deprecated since 0.20.0 |
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| 464 | */ |
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| 465 | public static function get_calling_script_file( $offset = 0 ) { |
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| 481 | |||
| 482 | |||
| 483 | } |
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| 484 |