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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| 12 | View Code Duplication | class JobExchangeDeleteMapper extends BaseMapper |
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| 13 | { |
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| 14 | |||
| 15 | 2 | protected function mapMethod() : Method { |
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| 18 | |||
| 19 | /** |
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| 20 | * @param JobExchangeDelete $job |
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| 21 | * @return Url |
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| 22 | */ |
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| 23 | 2 | protected function mapUrl(JobBase $job) : Url { |
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| 33 | } |
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| 34 |