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Add Calculator Contract,

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Add some checking for calculators,
This commit is contained in:
Patrick Henninger
2020-08-29 22:09:38 +02:00
parent 57d73f32b3
commit 43e440c485
5 changed files with 36 additions and 5 deletions
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12
src/CartItem.php
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@@ -4,9 +4,12 @@ namespace Gloudemans\Shoppingcart;
use Gloudemans\Shoppingcart\Calculation\DefaultCalculator;
use Gloudemans\Shoppingcart\Contracts\Buyable;
use Gloudemans\Shoppingcart\Contracts\Calculator;
use Gloudemans\Shoppingcart\Exceptions\InvalidCalculatorException;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Contracts\Support\Jsonable;
use Illuminate\Support\Arr;
use ReflectionClass;
/**
* @property-read mixed discount
@@ -398,7 +401,14 @@ class CartItem implements Arrayable, Jsonable
return round($this->weight * $this->qty, $decimals);
}
return call_user_func(config('cart.calculator', DefaultCalculator::class).'::getAttribute', $attribute, $this);
$class = new ReflectionClass(config('cart.calculator', DefaultCalculator::class));
if (!$class->implementsInterface(Calculator::class))
{
throw new InvalidCalculatorException('The configured Calculator seems to be invalid. Calculators have to implement the Calculator Contract.');
}
return call_user_func($class->getName().'::getAttribute', $attribute, $this);
}
/**