Array of arrays validation

Question

I'm trying to create validation for following request - data that is passed to given endpoint needs to be an array of arrays, where each inner array contains line1 and postcode and the size of the outer array is min:1. So, for example:

[
   ['line1' => 'foo', 'postcode' => 'bar'],
   ['line1' => 'baz', 'postcode' => 'qux']
]

is a valid data for my request and:

[
   ['line1' => 'foo', 'postcode' => 'bar'],
   ['line1' => 'baz']
]

is not.

I've created a Request validation class with following rules:

public function rules()
{
    return [
        '*.line1' => 'string|required',
        '*.postcode' => 'string|required',
    ];
}

however I don't know how to add the min requirement. Neither '*' => 'min:1', nor '' => 'min:1' work (I'd think that first one should theoretically work, but I think it checks for length of each field to be 1)

lufc · Accepted Answer · 2018-12-17 01:26:51Z

1

Ideally you would add a key, i.e.

[ 'items' => [
       ['line1' => 'foo', 'postcode' => 'bar'],
       ['line1' => 'baz', 'postcode' => 'qux']
    ]
]

And then use 'items' => 'required|min:1'.

If this isn't possible, could you add an after() method to your Request (I haven't done this so not sure if it works):

public function withValidator($validator)
{
    $validator->after(function ($validator) {
        if (count($validator->getData())<1) {
            $validator->errors()->add('input', 'There must be at least one input');
        }
    });
}

answered Dec 17, 2018 at 1:26

lufc

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1 Comment

eithed Over a year ago

The withValidator option worked for me. Thank you!

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