Updating model with image in yii2?

Question

Yii

Here I have a model in which there is an image (mandatory attribute) $model->image_file.
When we update a model with an image, it turns out that image_file is empty and a validation error occurs.
How can I make sure that the file is refilled during the update so that this does not happen?

Answer 1

image_file you should contain not a file, but a string, a file name. And for the file add 1 more attribute, for example file.
Then there will be no errors and validation will work normally, for the file separately and for its name separately