| 1 | <?php |
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| 8 | trait CanFixColumns |
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| 9 | { |
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| 10 | /** |
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| 11 | * @var FixColumns |
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| 12 | */ |
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| 13 | protected $fixColumns; |
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| 14 | |||
| 15 | /** |
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| 16 | * @param int $head |
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| 17 | * @param int $tail |
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| 18 | */ |
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| 19 | public function fixColumns(int $head, int $tail = -1) |
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| 25 | |||
| 26 | /** |
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| 27 | * @return Collection |
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| 28 | */ |
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| 29 | public function leftVisibleColumns() |
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| 33 | |||
| 34 | /** |
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| 35 | * @return Collection |
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| 36 | */ |
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| 37 | public function rightVisibleColumns() |
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| 41 | } |
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| 42 | |||
| 43 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.