MiNi SheLL

<?php

namespace common\components\validators;

use Yii;
use yii\validators\Validator;

class CountValidator extends Validator
{
    public $min;
    public $max;
    public $notEnough;
    public $tooMuch;
    public $message;
    
    
    /**
     * @inheritdoc
     */
    public function init()
    {
        parent::init();
        if ($this->message === null) {
            $this->message = Yii::t('common-validators', '{attribute} musi być listą.');
        }
        if ($this->min !== null && $this->notEnough === null) {
            $this->notEnough = Yii::t('common-validators', '{attribute} musi zawierać przynajmniej {min} elementów.');
        }
        if ($this->max !== null && $this->tooMuch === null) {
            $this->tooMuch = Yii::t('common-validators', '{attribute} może zawierać maksymalnie {max} elementów.');
        }
    }
    
    /**
     * @inheritdoc
     */
    public function validateAttribute($model, $attribute)
    {
        $value = $model->$attribute;

        if (!is_array($value)) {
            $this->addError($model, $attribute, $this->message);

            return;
        }

        $count = count($value);
        
        if ($this->min !== null && $count < $this->min) {
            $this->addError($model, $attribute, $this->notEnough, ['min' => $this->min]);
        }
        if ($this->max !== null && $count > $this->max) {
            $this->addError($model, $attribute, $this->tooMuch, ['max' => $this->max]);
        }
    }
    
    /**
     * @inheritdoc
     */
    protected function validateValue($value)
    {
        if (!is_array($value)) {
            return [$this->message, []];
        }

        $count = count($value);

        if ($this->min !== null && $count < $this->min) {
            return [$this->notEnough, ['min' => $this->min]];
        }
        if ($this->max !== null && $count > $this->max) {
            return [$this->tooMuch, ['max' => $this->max]];
        }

        return null;
    }
}