Laravel mimes validation always called even if no input file is uploaded (Not used required rule)

Question

I have used single validation rule only for file input field. That is mimes rule. I wanted to skip this rule if no file is uploaded, so i have not used 'required' rule. But it is always showing mime type message even if no file is uploaded. I have just added required rule for testing , at that time it shown required error message. This problem is only when submitting form using ajax with jquery.form.js

Answer 1

You can use the sometimes validation type for that.

'file' => 'sometimes|mimes:jpeg,png'

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Validating When Present

In some situations, you may wish to run validation checks against a field only if that field is present in the input array. To quickly accomplish this, add the sometimes rule to your rule list.

Official Laravel docs

Answer 2

You can use sometimes rule.

'photo' => 'sometimes|mimes:jpeg,bmp,png'

You can check more about it here https://laravel.com/docs/5.4/validation#conditionally-adding-rules