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 | const SECTION_MODE_REWRITE = 1; |
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| 16 | const SECTION_MODE_PREPEND = 2; |
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| 17 | const SECTION_MODE_APPEND = 3; |
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| 18 | |||
| 19 | /** |
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| 20 | * Set section content mode: rewrite/append/prepend |
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| 21 | * @var int |
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| 22 | */ |
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| 23 | protected $sectionMode = self::SECTION_MODE_REWRITE; |
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| 24 | |||
| 25 | /** |
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| 26 | * Instance of the template engine. |
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| 27 | * @var Engine |
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| 28 | */ |
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| 29 | protected $engine; |
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| 30 | |||
| 31 | /** |
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| 32 | * The name of the template. |
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| 33 | * @var Name |
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| 34 | */ |
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| 35 | protected $name; |
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| 36 | |||
| 37 | /** |
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| 38 | * The data assigned to the template. |
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| 39 | * @var array |
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| 40 | */ |
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| 41 | protected $data = array(); |
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| 42 | |||
| 43 | /** |
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| 44 | * An array of section content. |
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| 45 | * @var array |
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| 46 | */ |
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| 47 | protected $sections = array(); |
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| 48 | |||
| 49 | /** |
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| 50 | * The name of the section currently being rendered. |
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| 51 | * @var string |
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| 52 | */ |
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| 53 | protected $sectionName; |
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| 54 | |||
| 55 | /** |
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| 56 | * Whether the section should be appended or not. |
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| 57 | * @deprecated stayed for backward compatibility, use $sectionMode instead |
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| 58 | * @var boolean |
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| 59 | */ |
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| 60 | protected $appendSection; |
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| 61 | |||
| 62 | /** |
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| 63 | * The name of the template layout. |
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| 64 | * @var string |
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| 65 | */ |
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| 66 | protected $layoutName; |
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| 67 | |||
| 68 | 62 | /** |
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| 69 | * The data assigned to the template layout. |
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| 70 | 62 | * @var array |
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| 71 | 62 | */ |
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| 72 | protected $layoutData; |
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| 73 | 62 | ||
| 74 | 62 | /** |
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| 75 | * Create new Template instance. |
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| 76 | * @param Engine $engine |
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| 77 | * @param string $name |
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| 78 | */ |
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| 79 | public function __construct(Engine $engine, $name) |
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| 86 | |||
| 87 | /** |
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| 88 | * Magic method used to call extension functions. |
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| 89 | * @param string $name |
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| 90 | * @param array $arguments |
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| 91 | * @return mixed |
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| 92 | */ |
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| 93 | 2 | public function __call($name, $arguments) |
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| 97 | |||
| 98 | /** |
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| 99 | * Alias for render() method. |
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| 100 | * @throws \Throwable |
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| 101 | * @throws \Exception |
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| 102 | * @return string |
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| 103 | 62 | */ |
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| 104 | public function __toString() |
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| 108 | |||
| 109 | 62 | /** |
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| 110 | 62 | * Assign or get template data. |
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| 111 | * @param array $data |
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| 112 | * @return mixed |
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| 113 | */ |
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| 114 | public function data(array $data = null) |
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| 122 | |||
| 123 | /** |
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| 124 | * Check if the template exists. |
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| 125 | 52 | * @return boolean |
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| 126 | */ |
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| 127 | 52 | public function exists() |
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| 131 | |||
| 132 | /** |
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| 133 | * Get the template path. |
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| 134 | * @return string |
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| 135 | */ |
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| 136 | public function path() |
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| 140 | 50 | ||
| 141 | 50 | /** |
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| 142 | * Render the template and layout. |
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| 143 | 50 | * @param array $data |
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| 144 | 2 | * @throws \Throwable |
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| 145 | 2 | * @throws \Exception |
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| 146 | 2 | * @return string |
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| 147 | */ |
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| 148 | public function render(array $data = array()) |
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| 189 | 12 | ||
| 190 | /** |
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| 191 | * Set the template's layout. |
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| 192 | * @param string $name |
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| 193 | * @param array $data |
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| 194 | * @return null |
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| 195 | */ |
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| 196 | 12 | public function layout($name, array $data = array()) |
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| 201 | 2 | ||
| 202 | /** |
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| 203 | * Start a new section block. |
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| 204 | 10 | * @param string $name |
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| 205 | 2 | * @return null |
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| 206 | */ |
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| 207 | public function start($name) |
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| 223 | 4 | ||
| 224 | /** |
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| 225 | * Start a new section block in APPEND mode. |
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| 226 | * @param string $name |
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| 227 | * @return null |
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| 228 | */ |
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| 229 | 10 | public function push($name) |
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| 235 | |||
| 236 | /** |
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| 237 | 8 | * Start a new section block in PREPEND mode. |
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| 238 | 8 | * @param string $name |
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| 239 | 8 | * @return null |
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| 240 | */ |
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| 241 | 8 | public function unshift($name) |
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| 247 | |||
| 248 | /** |
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| 249 | * Stop the current section block. |
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| 250 | 4 | * @return null |
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| 251 | */ |
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| 252 | 4 | public function stop() |
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| 283 | |||
| 284 | /** |
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| 285 | * Alias of stop(). |
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| 286 | * @return null |
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| 287 | 2 | */ |
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| 288 | public function end() |
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| 292 | |||
| 293 | /** |
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| 294 | * Returns the content for a section block. |
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| 295 | * @param string $name Section name |
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| 296 | * @param string $default Default section content |
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| 297 | * @return string|null |
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| 298 | 6 | */ |
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| 299 | public function section($name, $default = null) |
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| 307 | 2 | ||
| 308 | 2 | /** |
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| 309 | * Fetch a rendered template. |
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| 310 | 4 | * @param string $name |
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| 311 | * @param array $data |
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| 312 | 4 | * @return string |
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| 313 | */ |
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| 314 | public function fetch($name, array $data = array()) |
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| 318 | |||
| 319 | /** |
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| 320 | * Output a rendered template. |
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| 321 | 6 | * @param string $name |
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| 322 | * @param array $data |
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| 323 | 6 | * @return null |
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| 324 | */ |
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| 325 | 6 | public function insert($name, array $data = array()) |
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| 329 | 6 | ||
| 330 | 2 | /** |
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| 331 | 2 | * Apply multiple functions to variable. |
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| 332 | * @param mixed $var |
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| 333 | 6 | * @param string $functions |
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| 334 | * @return mixed |
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| 335 | */ |
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| 336 | public function batch($var, $functions) |
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| 352 | |||
| 353 | /** |
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| 354 | * Escape string. |
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| 355 | * @param string $string |
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| 356 | * @param null|string $functions |
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| 357 | * @return string |
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| 358 | */ |
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| 359 | public function escape($string, $functions = null) |
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| 373 | |||
| 374 | /** |
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| 375 | * Alias to escape function. |
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| 376 | * @param string $string |
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| 377 | * @param null|string $functions |
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| 378 | * @return string |
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| 379 | */ |
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| 380 | public function e($string, $functions = null) |
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| 384 | } |
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| 385 |