compare validation rule fails in yii2-CodePudding

I am using yii2, I have three fields num1,num2,num3. I want to add validation, num2 input should be greater than num1 input, so I am using compare rule. Here is the code

        return [
            [['num1', 'num2', 'num3'], 'required'],
            [['num1', 'num2', 'num3'], 'integer', 'min' => self::MIN_SIZE, 'max' => self::MAX_SIZE],  
            ['num2', 'compare', 'compareAttribute' => 'num1', 'operator' => '>'],
        ];
    }

Issue: It works if I add 8,9,10 in the inputs but fails If I add 8,10,11 in the inputs. I have tried adding input type as number.

CodePudding user response：

The operands are compared as strings by default in yii\validators\CompareValidator. That's why '10' is considered less than '8'.

You need to set CompareValidator::$type property to compare operands as numbers.

Your rule should look like this:

[
    'num2',
    'compare',
    'compareAttribute' => 'num1',
    'operator' => '>',
    'type' => \yii\validators\CompareValidator::TYPE_NUMBER
]