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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| 20 | trait AdminPdfLetterControllerTrait |
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| 21 | { |
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| 22 | use AbstractControllerTrait; |
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| 23 | |||
| 24 | /** |
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| 25 | * @var string |
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| 26 | */ |
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| 27 | protected $letterType; |
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| 28 | |||
| 29 | /** |
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| 30 | * @var RecordManager |
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| 31 | */ |
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| 32 | protected $parentManager; |
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| 33 | |||
| 34 | /** |
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| 35 | * @var Record |
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| 36 | */ |
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| 37 | protected $parent; |
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| 38 | |||
| 39 | |||
| 40 | public function upload() |
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| 70 | |||
| 71 | View Code Duplication | public function downloadExample() |
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| 82 | |||
| 83 | View Code Duplication | public function downloadBlank() |
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| 94 | |||
| 95 | /** |
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| 96 | * @param Record $parent |
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| 97 | * @param $message |
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| 98 | * @param string $type |
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| 99 | */ |
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| 100 | protected function flashRedirectLetter($parent, $message, $type = 'success') |
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| 109 | |||
| 110 | /** |
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| 111 | * @param Record $parent |
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| 112 | * @return mixed |
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| 113 | */ |
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| 114 | protected function getPdfLettersPageUrl($parent) |
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| 118 | |||
| 119 | /** |
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| 120 | * @param Record $parent |
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| 121 | * @return mixed |
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| 122 | */ |
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| 123 | protected function getPdfLettersPageController($parent) |
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| 127 | |||
| 128 | /** |
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| 129 | * @return mixed |
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| 130 | */ |
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| 131 | protected function viewCheckItem() |
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| 140 | |||
| 141 | /** |
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| 142 | * @param $item |
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| 143 | * @param $type |
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| 144 | * @return PdfLetterTrait|Record |
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| 145 | */ |
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| 146 | protected function newPdfLetterRecordFromItemType($item, $type) |
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| 154 | |||
| 155 | /** |
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| 156 | * @return Record|PdfLetterTrait |
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| 157 | */ |
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| 158 | protected function newPdfLetterRecord() |
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| 162 | |||
| 163 | /** |
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| 164 | * @return RecordManager |
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| 165 | */ |
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| 166 | protected function getParentManager() |
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| 170 | |||
| 171 | /** |
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| 172 | * @return Record |
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| 173 | */ |
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| 174 | protected function getParent() |
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| 178 | |||
| 179 | /** |
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| 180 | * @return string |
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| 181 | */ |
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| 182 | protected function getLetterType() |
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| 186 | |||
| 187 | /** |
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| 188 | * Called before action |
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| 189 | */ |
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| 190 | protected function parseRequestPdfLetter() |
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| 198 | |||
| 199 | protected function checkRequestForParent() |
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| 208 | |||
| 209 | protected function checkRequestForItem() |
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| 214 | |||
| 215 | /** |
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| 216 | * @param PdfLetterTrait $letter |
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| 217 | */ |
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| 218 | protected function checkRequestSetFromLetter($letter) |
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| 224 | |||
| 225 | /** |
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| 226 | * @inheritdoc |
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| 227 | */ |
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| 228 | protected function setBreadcrumbs() |
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| 235 | } |
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| 236 |
It seems like the method you are trying to call exists only in some of the possible types.
Let’s take a look at an example:
Available Fixes
Add an additional type-check:
Only allow a single type to be passed if the variable comes from a parameter: