Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 40 | class Compiler |
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| 41 | { |
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| 42 | /** @var string|false */ |
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| 43 | private $redirectTemplate; |
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| 44 | |||
| 45 | /** |
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| 46 | * All of the PageViews handled by this Compiler instance indexed by their file paths relative to the site root. |
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| 47 | * |
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| 48 | * ``` |
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| 49 | * array['_pages/index.html.twig'] = &PageView; |
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| 50 | * ``` |
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| 51 | * |
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| 52 | * @var BasePageView[] |
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| 53 | */ |
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| 54 | private $pageViewsFlattened; |
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| 55 | |||
| 56 | /** @var string[] */ |
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| 57 | private $templateMapping; |
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| 58 | |||
| 59 | /** @var Folder */ |
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| 60 | private $folder; |
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| 61 | |||
| 62 | /** @var string */ |
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| 63 | private $theme; |
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| 64 | |||
| 65 | private $templateBridge; |
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| 66 | private $pageManager; |
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| 67 | private $eventDispatcher; |
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| 68 | private $configuration; |
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| 69 | |||
| 70 | 12 | public function __construct( |
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| 97 | |||
| 98 | /** |
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| 99 | * @param Folder $folder |
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| 100 | */ |
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| 101 | 12 | public function setTargetFolder(Folder $folder) |
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| 105 | |||
| 106 | /** |
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| 107 | * @param string $themeName |
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| 108 | */ |
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| 109 | public function setThemeName($themeName) |
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| 113 | |||
| 114 | /// |
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| 115 | // Twig parent templates |
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| 116 | /// |
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| 117 | |||
| 118 | public function getTemplateMappings() |
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| 122 | |||
| 123 | /// |
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| 124 | // IO Functionality |
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| 125 | /// |
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| 126 | |||
| 127 | /** |
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| 128 | * Compile all of the PageViews registered with the compiler. |
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| 129 | * |
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| 130 | * @since 0.1.0 |
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| 131 | */ |
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| 132 | 12 | public function compileAll() |
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| 139 | |||
| 140 | /** |
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| 141 | * Compile an individual PageView item. |
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| 142 | * |
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| 143 | * This function will take care of determining *how* to treat the PageView and write the compiled output to a the |
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| 144 | * respective target file. |
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| 145 | * |
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| 146 | * @param DynamicPageView|RepeaterPageView|StaticPageView $pageView The PageView that needs to be compiled |
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| 147 | * |
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| 148 | * @since 0.1.1 |
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| 149 | */ |
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| 150 | 12 | public function compilePageView(BasePageView &$pageView) |
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| 151 | { |
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| 152 | 12 | $this->templateBridge->setGlobalVariable('__currentTemplate', $pageView->getAbsoluteFilePath()); |
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| 153 | 12 | $this->logger->debug('Compiling {type} PageView: {pageview}', [ |
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| 154 | 12 | 'pageview' => $pageView->getRelativeFilePath(), |
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| 155 | 12 | 'type' => $pageView->getType(), |
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| 156 | ]); |
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| 157 | |||
| 158 | try |
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| 159 | { |
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| 160 | 12 | switch ($pageView->getType()) |
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| 161 | { |
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| 162 | 12 | case BasePageView::STATIC_TYPE: |
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| 163 | 10 | $this->compileStaticPageView($pageView); |
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| 164 | 10 | $this->compileStandardRedirects($pageView); |
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| 165 | 10 | break; |
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| 166 | |||
| 167 | 3 | case BasePageView::DYNAMIC_TYPE: |
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| 168 | $this->compileDynamicPageView($pageView); |
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| 169 | $this->compileStandardRedirects($pageView); |
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| 170 | break; |
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| 171 | |||
| 172 | 3 | case BasePageView::REPEATER_TYPE: |
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| 173 | 3 | $this->compileRepeaterPageView($pageView); |
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| 174 | 3 | $this->compileExpandedRedirects($pageView); |
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| 175 | 12 | break; |
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| 176 | } |
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| 177 | } |
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| 178 | catch (TemplateErrorInterface $e) |
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| 179 | { |
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| 180 | throw new FileAwareException( |
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| 181 | $e->getMessage(), |
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| 182 | $e->getCode(), |
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| 183 | $e, |
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| 184 | $pageView->getRelativeFilePath(), |
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| 185 | $e->getTemplateLine() + $pageView->getLineOffset() |
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| 186 | ); |
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| 187 | } |
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| 188 | 12 | } |
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| 189 | |||
| 190 | /** |
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| 191 | * Write the compiled output for a static PageView. |
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| 192 | * |
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| 193 | * @since 0.1.1 |
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| 194 | * |
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| 195 | * @throws TemplateErrorInterface |
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| 196 | */ |
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| 197 | 10 | private function compileStaticPageView(StaticPageView &$pageView) |
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| 207 | |||
| 208 | /** |
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| 209 | * Write the compiled output for a dynamic PageView. |
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| 210 | * |
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| 211 | * @param DynamicPageView $pageView |
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| 212 | * |
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| 213 | * @since 0.1.1 |
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| 214 | * |
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| 215 | * @throws TemplateErrorInterface |
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| 216 | */ |
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| 217 | private function compileDynamicPageView(DynamicPageView &$pageView) |
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| 242 | |||
| 243 | /** |
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| 244 | * Write the compiled output for a repeater PageView. |
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| 245 | * |
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| 246 | * @param RepeaterPageView $pageView |
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| 247 | * |
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| 248 | * @since 0.1.1 |
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| 249 | * |
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| 250 | * @throws TemplateErrorInterface |
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| 251 | */ |
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| 252 | 3 | private function compileRepeaterPageView(RepeaterPageView &$pageView) |
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| 270 | |||
| 271 | /** |
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| 272 | * Write the given $output to the $targetFile as a $fileType PageView. |
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| 273 | * |
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| 274 | * @param string $targetFile |
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| 275 | * @param string $output |
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| 276 | * @param string $fileType |
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| 277 | */ |
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| 278 | 12 | private function writeToFilesystem($targetFile, $output, $fileType) |
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| 286 | |||
| 287 | /// |
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| 288 | // Redirect handling |
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| 289 | /// |
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| 290 | |||
| 291 | /** |
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| 292 | * Write redirects for standard redirects. |
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| 293 | * |
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| 294 | * @throws TemplateErrorInterface |
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| 295 | * |
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| 296 | * @since 0.1.1 |
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| 297 | */ |
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| 298 | 10 | private function compileStandardRedirects(PermalinkDocument &$pageView) |
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| 316 | |||
| 317 | /** |
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| 318 | * Write redirects for expanded redirects. |
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| 319 | * |
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| 320 | * @param RepeaterPageView $pageView |
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| 321 | * |
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| 322 | * @since 0.1.1 |
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| 323 | */ |
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| 324 | 3 | private function compileExpandedRedirects(RepeaterPageView &$pageView) |
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| 350 | |||
| 351 | /// |
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| 352 | // Twig Functionality |
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| 353 | /// |
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| 354 | |||
| 355 | /** |
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| 356 | * Get the compiled HTML for a specific iteration of a repeater PageView. |
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| 357 | * |
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| 358 | * @param TemplateInterface $template |
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| 359 | * @param RepeaterPageView $pageView |
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| 360 | * @param ExpandedValue $expandedValue |
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| 361 | * |
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| 362 | * @since 0.1.1 |
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| 363 | * |
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| 364 | * @return string |
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| 365 | */ |
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| 366 | 3 | private function renderRepeaterPageView(TemplateInterface &$template, RepeaterPageView &$pageView, ExpandedValue &$expandedValue) |
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| 390 | |||
| 391 | /** |
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| 392 | * Get the compiled HTML for a specific ContentItem. |
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| 393 | * |
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| 394 | * @since 0.1.1 |
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| 395 | * |
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| 396 | * @return string |
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| 397 | */ |
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| 398 | View Code Duplication | private function renderDynamicPageView(TemplateInterface &$template, TemplateReadyDocument &$twigItem) |
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| 417 | |||
| 418 | /** |
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| 419 | * Get the compiled HTML for a static PageView. |
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| 420 | * |
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| 421 | * @since 0.1.1 |
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| 422 | * |
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| 423 | * @throws TemplateErrorInterface |
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| 424 | * |
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| 425 | * @return string |
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| 426 | */ |
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| 427 | 10 | View Code Duplication | private function renderStaticPageView(StaticPageView &$pageView) |
| 447 | |||
| 448 | /** |
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| 449 | * Create a Twig template that just needs an array to render. |
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| 450 | * |
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| 451 | * @since 0.1.1 |
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| 452 | * |
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| 453 | * @throws TemplateErrorInterface |
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| 454 | * |
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| 455 | * @return TemplateInterface |
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| 456 | */ |
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| 457 | 12 | private function createTwigTemplate(BasePageView &$pageView) |
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| 483 | } |
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| 484 |
In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: