Laravel unique validation

/**
 * Store a new blog post.
 *
 * @param  Request  $request
 * @return Response
 */

public function store(Request $request)
{
    $validatedData = $request->validate([
        'title' => 'required|unique:posts|max:255',
        'body' => 'required',
    ]);

    // The blog post is valid...
}

Source: laravel.com

Laravel unique validation

unique:table,column,except,idColumn

############## Example : ################

############### For Updating  
//rules
'email' => 'unique:users,email_address,' . $userId,

############### For Creating 
//rules
'email' => 'unique:users,email_address',

Source: grepper.com

Laravel validate required and unique

class ProductRequestUpdate extends FormRequest
{
    public function rules()
    {
        return [
            'code' => ["required", Rule::unique('products', 'code')->ignore($this->product->getKey())],
            'name' => 'required',
        ];
    }
}

Source: grepper.com

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