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    <h3>Editing: Unique.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace Illuminate\Validation\Rules;

use Illuminate\Database\Eloquent\Model;
use Illuminate\Support\Traits\Conditionable;

class Unique
{
    use Conditionable, DatabaseRule;

    /**
     * The ID that should be ignored.
     *
     * @var mixed
     */
    protected $ignore;

    /**
     * The name of the ID column.
     *
     * @var string
     */
    protected $idColumn = 'id';

    /**
     * Ignore the given ID during the unique check.
     *
     * @param  mixed  $id
     * @param  string|null  $idColumn
     * @return $this
     */
    public function ignore($id, $idColumn = null)
    {
        if ($id instanceof Model) {
            return $this-&gt;ignoreModel($id, $idColumn);
        }

        $this-&gt;ignore = $id;
        $this-&gt;idColumn = $idColumn ?? 'id';

        return $this;
    }

    /**
     * Ignore the given model during the unique check.
     *
     * @param  \Illuminate\Database\Eloquent\Model  $model
     * @param  string|null  $idColumn
     * @return $this
     */
    public function ignoreModel($model, $idColumn = null)
    {
        $this-&gt;idColumn = $idColumn ?? $model-&gt;getKeyName();
        $this-&gt;ignore = $model-&gt;{$this-&gt;idColumn};

        return $this;
    }

    /**
     * Ignore soft deleted models during the unique check.
     *
     * @param  string  $deletedAtColumn
     * @return $this
     */
    public function withoutTrashed($deletedAtColumn = 'deleted_at')
    {
        $this-&gt;whereNull($deletedAtColumn);

        return $this;
    }

    /**
     * Convert the rule to a validation string.
     *
     * @return string
     */
    public function __toString()
    {
        return rtrim(sprintf('unique:%s,%s,%s,%s,%s',
            $this-&gt;table,
            $this-&gt;column,
            $this-&gt;ignore ? '&quot;'.addslashes($this-&gt;ignore).'&quot;' : 'NULL',
            $this-&gt;idColumn,
            $this-&gt;formatWheres()
        ), ',');
    }
}
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