LengthValidator.php

Go to the documentation of this file.

<?php
 
namespace Ubiquity\contents\validation\validators\multiples;
 
use Ubiquity\log\Logger;
use Ubiquity\contents\validation\validators\HasNotNullInterface;
 
class LengthValidator extends ValidatorMultiple implements HasNotNullInterface {
    protected $min;
    protected $max;
    protected $charset = 'UTF-8';
 
    public function __construct() {
        parent::__construct ();
        $this->message = \array_merge ( $this->message, [ 'max' => 'This value must be at least {min} characters long','min' => 'This value cannot be longer than {max} characters','exact' => 'This value should have exactly {min} characters.',"charset" => "This value is not in {charset} charset" ] );
    }
 
    public function validate($value) {
        if (parent::validate ( $value ) === false) {
            return false;
        }
        if (! is_scalar ( $value ) && ! (\is_object ( $value ) && method_exists ( $value, '__toString' ))) {
            Logger::warn ( 'Validation', 'This value is not valid string for the charset ' . $this->charset );
            return true;
        }
        return $this->validateValue ( ( string ) $value );
    }
 
    protected function validateValue($stringValue) {
        if (@mb_check_encoding ( $stringValue, $this->charset )) {
            $length = mb_strlen ( $stringValue, $this->charset );
            if ($this->min === $this->max && $this->min !== null && $length !== $this->max) {
                $this->violation = 'exact';
                return false;
            } elseif ($this->max !== null && $length > $this->max) {
                $this->violation = 'max';
                return false;
            } elseif ($this->min !== null && $length < $this->min) {
                $this->violation = 'min';
                return false;
            }
            return true;
        } else {
            $this->violation = 'charset';
            return false;
        }
    }
 
    public function getParameters(): array {
        return [ 'min','max','charset','value' ];
    }
 
    public function asUI(): array {
        $rules=[];
        if ($this->min === $this->max && $this->min !== null) {
            $rules[] = ['type' => 'exactLength', 'prompt' => $this->_getMessage()['exact'], 'value' => $this->min];
        }else {
            if (isset($this->min)) {
                $rules[] = ['type' => 'minLength', 'prompt' => $this->_getMessage()['min'], 'value' => $this->min];
            }
            if (isset($this->max)) {
                $rules[] = ['type' => 'maxLength', 'prompt' => $this->_getMessage()['max'], 'value' => $this->max];
            }
        }
        return \array_merge_recursive(parent::asUI () , ['rules' => $rules]);
    }
}