Laravel 5.3 Validation Fails when Variables are Null
Solution 1
Add nullable
rule:
'firstName' => 'string|max:255|nullable',
'lastName' => 'string|max:255|nullable'
The field under validation may be
null
. This is particularly useful when validating primitive such as strings and integers that can containnull
values.
Solution 2
When you want something to be required but the value itself can be empty, like an empty string.
Validator::make($postData, [
'firstName' => 'present|string|max:255|nullable',
'lastName' => 'present|string|max:255|nullable'
]);
Useful in scenarios like "notes", which can be emptied by removing the input field from all its text and hit save.
Neel
Previously know as @blackops_programmer. I know, it was a pretty lame Display name.
Updated on July 09, 2022Comments
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Neel almost 2 years
Since upgrading laravel from 5.1 to 5.3, I've got couple of odd issues with Validation.
When I post a data like this:
firstName null
And the validation rules are like this:
$validator = Validator::make($postData, [ 'firstName' => 'string|max:255', 'lastName' => 'string|max:255' ]);
The above fails with the messages something like
"The XYZ must be a string."
. What I don't understand is:Why is the validation failing when it is not set as
required
? Meaning, it should ignore it and not throw an error if the value is empty, right?Why does the validation fail if the value is set as
null
?Why does the validation fail when the parameter is not sent at all? (like the
lastName
which is not posted at all)
Has something changed in Laravel 5.3 validations?
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Neel over 7 yearsPerfect. That fixed it. Thank you! I will accept your answer in 10 mins once SO allows me to. A quick question, did this change in laravel 5.3? Cuz I did not get this issue in 5.1 and I never added nullable in validation rules.
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Alexey Mezenin over 7 years@Neel don't see any code for
nullable
rule in 5.2. It's in 5.3 only. So I guess they changed something in validation. -
Neel over 7 yearsThat makes sense. Thank you so much @Alexey for pointing this out. It was very helpful!
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Berni almost 2 yearsdoesn't work for dates