Complex classes like Template 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 Template, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 13 | class Template |
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| 14 | { |
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| 15 | |||
| 16 | const SECTION_MODE_REWRITE = 1; |
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| 17 | const SECTION_MODE_PREPEND = 2; |
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| 18 | const SECTION_MODE_APPEND = 3; |
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| 19 | |||
| 20 | /** |
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| 21 | * Instance of the template engine. |
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| 22 | * @var Engine |
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| 23 | */ |
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| 24 | protected $engine; |
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| 25 | |||
| 26 | /** |
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| 27 | * The name of the template. |
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| 28 | * @var Name |
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| 29 | */ |
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| 30 | protected $name; |
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| 31 | |||
| 32 | /** |
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| 33 | * The data assigned to the template. |
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| 34 | * @var array |
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| 35 | */ |
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| 36 | protected $data = array(); |
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| 37 | |||
| 38 | /** |
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| 39 | * An array of section content. |
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| 40 | * @var array |
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| 41 | */ |
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| 42 | protected $sections = array(); |
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| 43 | |||
| 44 | /** |
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| 45 | * The name of the section currently being rendered. |
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| 46 | * @var string |
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| 47 | */ |
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| 48 | protected $sectionName; |
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| 49 | |||
| 50 | /** |
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| 51 | * Whether the section should be appended or not. |
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| 52 | * @deprecated stayed for backward compatibility, use $sectionMode instead |
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| 53 | * @var boolean |
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| 54 | */ |
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| 55 | protected $appendSection; |
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| 56 | |||
| 57 | /** |
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| 58 | * The name of the template layout. |
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| 59 | * @var string |
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| 60 | */ |
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| 61 | protected $layoutName; |
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| 62 | |||
| 63 | /** |
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| 64 | * The data assigned to the template layout. |
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| 65 | * @var array |
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| 66 | */ |
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| 67 | protected $layoutData; |
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| 68 | 62 | ||
| 69 | /** |
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| 70 | 62 | * Set section content mode: rewrite/append/prepend |
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| 71 | 62 | * @var int |
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| 72 | */ |
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| 73 | 62 | protected $sectionMode = self::SECTION_MODE_REWRITE; |
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| 74 | 62 | ||
| 75 | /** |
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| 76 | * Create new Template instance. |
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| 77 | * @param Engine $engine |
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| 78 | * @param string $name |
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| 79 | */ |
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| 80 | public function __construct(Engine $engine, $name) |
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| 87 | |||
| 88 | /** |
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| 89 | * Magic method used to call extension functions. |
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| 90 | * @param string $name |
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| 91 | * @param array $arguments |
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| 92 | * @return mixed |
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| 93 | 2 | */ |
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| 94 | public function __call($name, $arguments) |
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| 98 | |||
| 99 | /** |
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| 100 | * Alias for render() method. |
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| 101 | * @throws \Throwable |
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| 102 | * @throws \Exception |
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| 103 | 62 | * @return string |
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| 104 | */ |
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| 105 | 62 | public function __toString() |
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| 109 | 62 | ||
| 110 | 62 | /** |
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| 111 | * Assign or get template data. |
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| 112 | * @param array $data |
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| 113 | * @return mixed |
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| 114 | */ |
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| 115 | public function data(array $data = null) |
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| 123 | |||
| 124 | /** |
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| 125 | 52 | * Check if the template exists. |
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| 126 | * @return boolean |
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| 127 | 52 | */ |
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| 128 | public function exists() |
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| 132 | |||
| 133 | /** |
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| 134 | * Get the template path. |
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| 135 | * @return string |
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| 136 | */ |
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| 137 | 50 | public function path() |
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| 141 | 50 | ||
| 142 | /** |
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| 143 | 50 | * Render the template and layout. |
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| 144 | 2 | * @param array $data |
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| 145 | 2 | * @throws \Throwable |
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| 146 | 2 | * @throws \Exception |
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| 147 | * @return string |
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| 148 | */ |
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| 149 | public function render(array $data = array()) |
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| 190 | |||
| 191 | /** |
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| 192 | * Set the template's layout. |
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| 193 | * @param string $name |
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| 194 | * @param array $data |
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| 195 | * @return null |
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| 196 | 12 | */ |
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| 197 | public function layout($name, array $data = array()) |
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| 202 | |||
| 203 | /** |
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| 204 | 10 | * Start a new section block. |
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| 205 | 2 | * @param string $name |
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| 206 | * @return null |
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| 207 | */ |
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| 208 | 10 | public function start($name) |
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| 224 | |||
| 225 | /** |
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| 226 | * Start a new section block in APPEND mode. |
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| 227 | * @param string $name |
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| 228 | * @return null |
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| 229 | 10 | */ |
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| 230 | public function push($name) |
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| 236 | |||
| 237 | 8 | /** |
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| 238 | 8 | * Start a new section block in PREPEND mode. |
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| 239 | 8 | * @param string $name |
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| 240 | * @return null |
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| 241 | 8 | */ |
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| 242 | 8 | public function unshift($name) |
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| 248 | |||
| 249 | /** |
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| 250 | 4 | * Stop the current section block. |
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| 251 | * @return null |
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| 252 | 4 | */ |
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| 253 | 4 | public function stop() |
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| 284 | |||
| 285 | /** |
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| 286 | * Alias of stop(). |
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| 287 | 2 | * @return null |
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| 288 | */ |
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| 289 | 2 | public function end() |
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| 293 | |||
| 294 | /** |
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| 295 | * Returns the content for a section block. |
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| 296 | * @param string $name Section name |
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| 297 | * @param string $default Default section content |
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| 298 | 6 | * @return string|null |
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| 299 | */ |
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| 300 | 6 | public function section($name, $default = null) |
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| 308 | 2 | ||
| 309 | /** |
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| 310 | 4 | * Fetch a rendered template. |
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| 311 | * @param string $name |
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| 312 | 4 | * @param array $data |
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| 313 | * @return string |
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| 314 | */ |
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| 315 | public function fetch($name, array $data = array()) |
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| 319 | |||
| 320 | /** |
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| 321 | 6 | * Output a rendered template. |
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| 322 | * @param string $name |
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| 323 | 6 | * @param array $data |
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| 324 | * @return null |
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| 325 | 6 | */ |
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| 326 | 2 | public function insert($name, array $data = array()) |
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| 330 | 2 | ||
| 331 | 2 | /** |
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| 332 | * Apply multiple functions to variable. |
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| 333 | 6 | * @param mixed $var |
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| 334 | * @param string $functions |
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| 335 | * @return mixed |
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| 336 | */ |
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| 337 | public function batch($var, $functions) |
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| 353 | |||
| 354 | /** |
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| 355 | * Escape string. |
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| 356 | * @param string $string |
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| 357 | * @param null|string $functions |
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| 358 | * @return string |
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| 359 | */ |
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| 360 | public function escape($string, $functions = null) |
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| 374 | |||
| 375 | /** |
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| 376 | * Alias to escape function. |
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| 377 | * @param string $string |
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| 378 | * @param null|string $functions |
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| 379 | * @return string |
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| 380 | */ |
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| 381 | public function e($string, $functions = null) |
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| 385 | } |
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| 386 |