Laravel - Validate Nullable Fields Where Field Input Should Be One Of A Given Set Of Values

Question

I have two checkbox fields tech and active that I want to be nullable but I also want the values that can be entered to be restricted to a single value for one field and one of two values for the other field.

I came across the answer stackoverflow but I don't seem to implement it properly. Heres my code:

 $validator = Validator::make($request->all(), [
    'name' => 'required|string|max:150',
    'email' => 'required|string|max:200',
    'phone' => 'required|digits:11',
    'branch' => 'required|string',
    'department' => 'required|string',
    'tech' => ['nullable','digits:1', Rule::in([1, 2])],
    'role' => 'required|string',
    'active' => ['nullable', 'string', 'max:6', Rule::in(['active'])]
 ]);

If I do this:

'tech' => 'nullable|digits:1',
'active' => 'nullable|string|max:6'

It works, but I need to validate the values that these fields can allow.

Can you show how you are sending the data/request to the server? I have tried a simple request with 'tech' => 'nullable|digits:1|in:1,2', 'active' => 'nullable|string|max:6|in:active' and it is working just fine. — Chin Leung
– Chin Leung, Commented Jul 15, 2019 at 15:06
oh okay i'm using ['nullable', 'string', 'max:6', Rule::in(['active'])] instead. Let me implement yours — Ikechukwu
– Ikechukwu, Commented Jul 15, 2019 at 15:09
I don't think it's related to the validation rule as it works fine the way you have it too. I think it's in the data that you are sending that is wrong. Can you show me what the output of dd($request->all()) gives you? Or maybe dd($request->tech). — Chin Leung
– Chin Leung, Commented Jul 15, 2019 at 15:11

stokoe0990 · Accepted Answer · 2019-07-15 14:30:50Z

1

You can pass closures to validators, even in the validator class.

$validator = Validator::make($request->all(), [
    'name' => 'required|string|max:150',
    'email' => 'required|string|max:200',
    'phone' => 'required|digits:11',
    'branch' => 'required|string',
    'department' => 'required|string',
    'tech' => function($attribute, $value, $fail){
        if (isset($value)) {
            sizeof($value) > 1 ?? return $fail($attribute." is invalid");
            in_array($value, [1,2]) ?? return $fail($attribute." is invalid");
        }
    },
    'role' => 'required|string',
    'active' => ['nullable', 'string', 'max:6', Rule::in(['active'])]
 ]);

answered Jul 15, 2019 at 14:30

stokoe0990

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Ikechukwu · Accepted Answer · 2019-07-16 07:27:58Z

1

Chin Leung's implementation via the comments section solved the problem for me.

$validator = Validator::make($request->all(), [
   'name' => 'required|string|max:150',
   'email' => 'required|string|max:200',
   'phone' => 'required|digits:11',
   'branch' => 'required|string',
   'department' => 'required|string',
   'tech' => 'nullable|digits:1|in:1,2',
   'role' => 'required|string',
   'activate' => 'nullable|string|max:6|in:active'
]);

answered Jul 16, 2019 at 7:27

Ikechukwu

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