How to conditionally validate an array input in Laravel 7?

Question

I am trying to conditionally validate an array input in Laravel. I am following the documentation provided here. But the documentation does not provide details on how to do it on an array input. Below is the code that I am trying

$rule = [
            'report.*' => 'max:255',
            'comment.*' => 'exclude_if:report.*,file|max:65535'
        ];
        $validator = Validator::make($array, $rule);

Here the report is a file input and comment is a text area field.

<input type="file" name="report[0]"/>
<input type="file" name="report[1]"/>
<textarea name="comment[0]"></textarea>
<textarea name="comment[1]"></textarea>

The comment field is required if the corresponding file input is empty. How can I achieve this in Laravel 7?

I think you should use a custom rule here, laravel.com/docs/7.x/validation#custom-validation-rules — Vaibhavraj Roham
– Vaibhavraj Roham, Commented Sep 9, 2020 at 6:46
Just thinking out loud, but maybe change the structure to something like report[0][file] and report[0][comment]. — Ramon Bakker
– Ramon Bakker, Commented Sep 9, 2020 at 6:56

Burhan Çelebi · Accepted Answer · 2020-09-09 06:47:05Z

1

Did you try required_if ?

And i think you must write "report" instead of "file" because your input name is report.

If that doesn't work, maybe you need to make a custom rule.

answered Sep 9, 2020 at 6:47

Burhan Çelebi

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1 Comment

Akhilesh Over a year ago

Close enough! I used 'required_without' and it worked. 'required_if' is to check if the other field is present. Thanks for your help.

Akhilesh · Accepted Answer · 2020-09-09 07:00:38Z

0

I was able to do it using below code.

$rule = [
            'report.*' => 'max:255',
            'comment.*' => 'required_without:report.*|max:65535'
        ];
        $validator = Validator::make($array, $rule);

answered Sep 9, 2020 at 7:00

Akhilesh

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