| 1 | <?php |
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| 14 | class Configuration implements ConfigurationInterface |
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| 15 | { |
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| 16 | /** |
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| 17 | * Config tree builder. |
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| 18 | * |
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| 19 | * Example config: |
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| 20 | * |
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| 21 | * anime_db_ani_db_browser: |
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| 22 | * client: 'cache' |
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| 23 | * app: |
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| 24 | * version: 2 |
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| 25 | * client: 'animedbplugin' |
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| 26 | * code: 'api-team-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX' |
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| 27 | * |
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| 28 | * @return TreeBuilder |
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| 29 | */ |
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| 30 | 11 | public function getConfigTreeBuilder() |
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| 43 | |||
| 44 | /** |
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| 45 | * @return TreeBuilder |
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| 46 | */ |
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| 47 | 11 | protected function getApp() |
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| 66 | } |
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| 67 |
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different sub-classes of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the parent class: