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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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namespace Illuminate\Validation\Rules;
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use InvalidArgumentException;
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class RequiredIf
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{
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    /**
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     * The condition that validates the attribute.
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     *
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     * @var callable|bool
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     */
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    public $condition;
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    /**
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     * Create a new required validation rule based on a condition.
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     *
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     * @param  callable|bool  $condition
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     * @return void
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     */
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    public function __construct($condition)
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    {
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        if (! is_string($condition)) {
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            $this->condition = $condition;
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        } else {
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            throw new InvalidArgumentException('The provided condition must be a callable or boolean.');
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        }
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    }
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    /**
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     * Convert the rule to a validation string.
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     *
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     * @return string
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     */
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    public function __toString()
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    {
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        if (is_callable($this->condition)) {
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            return call_user_func($this->condition) ? 'required' : '';
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        }
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        return $this->condition ? 'required' : '';
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    }
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}