square image in yii2

Question

I want to force the user to upload square pictures. I mean that the width and height of the square be equal. In core validators of the yii2 we have image type with this definition:

['primaryImage', 'image', 'extensions' => 'png, jpg',
        'minWidth' => 100, 'maxWidth' => 1000,
        'minHeight' => 100, 'maxHeight' => 1000,
],

now if i want to use custom validator which support client validator what should I do. Please i want to limit the user to upload my forced width and height, just want to force that image be square.

score 2 · Accepted Answer · edited May 23 '17 at 11:52

2

You can extend ImageValidator:

class ImageSquareValidator extends ImageValidator
{
    /**
     * @inheritdoc
     */
    protected function validateImage($image)
    {
        if (false === ($imageInfo = getimagesize($image->tempName))) {
            return [$this->notImage, ['file' => $image->name]];
        }

        list($width, $height) = $imageInfo;

        if ($width !== $height) {
            return [Yii::t('yii', 'The image "{file}" is not square.'), ['file' => $image->name]];
        }

        return parent::validateImage($image);
    }
}

In client validation you can use this example.

edited May 23 '17 at 11:52

Community

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answered Jan 25 '16 at 12:59

Onedev_Link

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1

Thank you for response, but file api only works in some browsers. Is there another way except file api? – Behzad Hassani Jan 25 '16 at 13:04
1

@BehzadHassani The surest way is upload file by ajax to server and validate on server-side. – Onedev_Link Jan 25 '16 at 14:56

square image in yii2

1 Answers1