| 1 | <?php |
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| 9 | trait ArtisanCanValidateAnswers |
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| 10 | { |
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| 11 | /** |
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| 12 | * Require valid answer for the asked question. |
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| 13 | * |
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| 14 | * @param string $question |
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| 15 | * @param string $field |
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| 16 | * @param string|array $rules |
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| 17 | * @param null $default |
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| 18 | * |
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| 19 | * @return mixed |
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| 20 | */ |
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| 21 | protected function askValid($question, $field, $rules, $default = null) |
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| 33 | |||
| 34 | /** |
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| 35 | * Validate input field. |
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| 36 | * |
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| 37 | * @param string $field |
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| 38 | * @param string $value |
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| 39 | * @param string|array $rules |
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| 40 | * |
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| 41 | * @return string|null |
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| 42 | */ |
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| 43 | protected function validateInput($field, $value, $rules) |
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| 52 | } |
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| 53 |
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.