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 | * The name of the template layout. |
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52 | * @var string |
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53 | */ |
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54 | protected $layoutName; |
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55 | |||
56 | /** |
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57 | * The data assigned to the template layout. |
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58 | * @var array |
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59 | */ |
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60 | protected $layoutData; |
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61 | |||
62 | /** |
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63 | * Set section content mode: rewrite/append/prepend |
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64 | * @var int |
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65 | */ |
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66 | protected $sectionMode = self::SECTION_MODE_REWRITE; |
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67 | |||
68 | 62 | /** |
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69 | * Create new Template instance. |
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70 | 62 | * @param Engine $engine |
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71 | 62 | * @param string $name |
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72 | */ |
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73 | 62 | public function __construct(Engine $engine, $name) |
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80 | |||
81 | /** |
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82 | 4 | * Magic method used to call extension functions. |
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83 | * @param string $name |
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84 | 4 | * @param array $arguments |
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85 | * @return mixed |
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86 | */ |
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87 | public function __call($name, $arguments) |
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91 | |||
92 | /** |
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93 | 2 | * Alias for render() method. |
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94 | * @throws \Throwable |
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95 | 2 | * @throws \Exception |
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96 | * @return string |
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97 | */ |
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98 | public function __toString() |
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102 | |||
103 | 62 | /** |
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104 | * Assign or get template data. |
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105 | 62 | * @param array $data |
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106 | 2 | * @return mixed |
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107 | */ |
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108 | public function data(array $data = null) |
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116 | 54 | ||
117 | /** |
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118 | 54 | * Check if the template exists. |
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119 | * @return boolean |
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120 | */ |
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121 | public function exists() |
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125 | 52 | ||
126 | /** |
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127 | 52 | * Get the template path. |
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128 | * @return string |
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129 | */ |
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130 | public function path() |
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134 | |||
135 | /** |
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136 | * Render the template and layout. |
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137 | 50 | * @param array $data |
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138 | * @throws \Throwable |
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139 | 50 | * @throws \Exception |
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140 | 50 | * @return string |
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141 | 50 | */ |
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142 | public function render(array $data = array()) |
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183 | |||
184 | /** |
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185 | 12 | * Set the template's layout. |
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186 | * @param string $name |
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187 | 12 | * @param array $data |
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188 | 12 | * @return null |
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189 | 12 | */ |
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190 | public function layout($name, array $data = array()) |
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195 | |||
196 | 12 | /** |
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197 | * Start a new section block. |
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198 | 12 | * @param string $name |
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199 | 2 | * @return null |
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200 | */ |
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201 | 2 | public function start($name) |
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217 | |||
218 | 4 | /** |
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219 | * Start a new section block in APPEND mode. |
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220 | 4 | * @param string $name |
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221 | * @return null |
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222 | 4 | */ |
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223 | 4 | public function push($name) |
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228 | |||
229 | 10 | /** |
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230 | * Start a new section block in PREPEND mode. |
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231 | 10 | * @param string $name |
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232 | 2 | * @return null |
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233 | */ |
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234 | 2 | public function unshift($name) |
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239 | 8 | ||
240 | /** |
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241 | 8 | * Stop the current section block. |
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242 | 8 | * @return null |
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243 | 8 | */ |
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244 | 8 | public function stop() |
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274 | |||
275 | /** |
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276 | 2 | * Alias of stop(). |
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277 | * @return null |
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278 | 2 | */ |
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279 | public function end() |
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283 | |||
284 | /** |
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285 | * Returns the content for a section block. |
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286 | * @param string $name Section name |
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287 | 2 | * @param string $default Default section content |
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288 | * @return string|null |
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289 | 2 | */ |
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290 | 2 | public function section($name, $default = null) |
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298 | 6 | ||
299 | /** |
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300 | 6 | * Fetch a rendered template. |
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301 | 6 | * @param string $name |
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302 | 2 | * @param array $data |
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303 | 6 | * @return string |
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304 | 4 | */ |
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305 | 4 | public function fetch($name, array $data = array()) |
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309 | |||
310 | 4 | /** |
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311 | * Output a rendered template. |
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312 | 4 | * @param string $name |
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313 | * @param array $data |
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314 | * @return null |
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315 | */ |
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316 | public function insert($name, array $data = array()) |
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320 | |||
321 | 6 | /** |
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322 | * Apply multiple functions to variable. |
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323 | 6 | * @param mixed $var |
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324 | * @param string $functions |
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325 | 6 | * @return mixed |
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326 | 2 | */ |
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327 | 2 | public function batch($var, $functions) |
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343 | |||
344 | 2 | /** |
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345 | * Escape string. |
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346 | * @param string $string |
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347 | * @param null|string $functions |
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348 | * @return string |
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349 | */ |
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350 | public function escape($string, $functions = null) |
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364 | |||
365 | /** |
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366 | * Alias to escape function. |
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367 | * @param string $string |
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368 | * @param null|string $functions |
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369 | * @return string |
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370 | */ |
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371 | public function e($string, $functions = null) |
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375 | } |
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376 |