| 1 | <?php |
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| 10 | trait BelongsToPlan |
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| 11 | { |
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| 12 | /** |
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| 13 | * The model always belongs to a plan. |
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| 14 | * |
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| 15 | * @return \Illuminate\Database\Eloquent\Relations\BelongsTo |
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| 16 | */ |
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| 17 | public function plan(): BelongsTo |
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| 21 | |||
| 22 | /** |
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| 23 | * Scope models by plan id. |
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| 24 | * |
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| 25 | * @param \Illuminate\Database\Eloquent\Builder $builder |
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| 26 | * @param int $planId |
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| 27 | * |
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| 28 | * @return \Illuminate\Database\Eloquent\Builder |
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| 29 | */ |
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| 30 | public function scopeByPlanId(Builder $builder, int $planId): Builder |
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| 34 | } |
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| 35 |
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.