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?
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 contain null values.
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.
Related
So, this is what i've tried already.
$regex = '/^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/';
$rules = [
'nextcontactSchool' => 'nullable|digits_between:7,10',
'websiteSchool' => 'nullable|regex:' . $regex,
];
I did this in a controller once i figured that i can't properly make use of a rule. But the problem here is that, I cant seem to pass the empty data to the database and everytime that i do that, i get a error message.
Can you please help me out?
You can use nullable and it will pass if websiteSchool and nextcontactSchool are not present
$request->validate([
'websiteSchool' => ['nullable', 'url'],
'nextcontactSchool' => ['nullable', 'digits_between:7,10']
]);
If this is not what you need, consider the following validation methods:
required_if
present
so, i came to know the answer behind it. when using nullable it sends a null value for sure but it send's the nullable value in terms of a string. so rather than comparing it to null, we would be comparing it to 'null'.
e.g:
if($variable!='null'){
//do something
}
How can I validate my inputs from a GET method?
Example URL: localhost:8000?salary=2000&name=sample&description=vowewljfodigjfdglfd
In the URL I have 3 inputs and I want to validate:
Salary - should accept only numeric
Name - should accept only alphabetic
Description - should accept with max:1000
Somebody knows how to do this?
The Laravel validator doesn't care where the data came from. You can manually create a validator and pass it the query string data.
$validator = Validator::make($request->query(), [
'salary' => 'numeric',
'name' => 'alpha_num',
'description' => 'max:1000',
]);
if ($validator->fails()) {
// show an error
}
Side note: As someone with a hyphenated last name, I implore you not to treat name as alphanumeric. See Falsehoods Programmers Believe About Names.
Using Laravel 5.4, my users have an auto-complete helper to put values into an input. I want to validate that each of the values exists in the database when inserting.
Inputted value for "unit" : "12,13,14"
How do I check that, unit "12" and unit "13" and unit "14" exist in the database before doing the insert?
$units = array_filter(array_unique(explode(",", $request->unit)));
// input "12,13,14" becomes [12,13,14]
$this->validate($request,[
'unit' => 'required|exists:units.id,'.$units,
]);
Do I have to use a custom validation rule, or does laravel have something handy like 'required|existsAllValuesInThisArray' sorta thing? Haven't found anything in documentation about it.
I also found this, but it's for like multiple select fields or checkboxes sorta thing from the looks of it.
$validator = Validator::make($request->all(), [
'person.*.email' => 'email|unique:users',
'person.*.first_name' => 'required_with:person.*.last_name',
]);
Update : I ended up using javascript to split the input into an array before sending it off for processing. So my input name became "units[]" instead of "units"
Try the following:
$this->validate($request,[ 'unit.*' => 'required|exists:units.id,'.$units, ]);
Since $units is an array, the rule unit.* should check for each element of the array.
How to set not require numeric validation for Laravel5.2? I just used this Code but when i don't send value or select box haven't selected item I have error the val field most be numeric... I need if request hasn't bed input leave bed alone. leave bed validate ...
$this->validate($request, [
'provinces_id' => 'required|numeric',
'type' => 'required',
'bed' => 'numeric',
]);
If I understood you correctly, you're looking for sometimes rule:
'bed' => 'sometimes|numeric',
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
In Laravel 6 or 5.8, you should use nullable. But sometimes keyword doesn't work on that versions.
Use sometimes instead of required in validation rules. It checks if only there is a value. Otherwise it treats parameter as optional.
You may need nullable – sometimes and
present didn't work for me when combined with integer|min:0 on a standard text input type - the integer error was always triggered.
A Note on Optional Fields
By default, Laravel includes the TrimStrings and ConvertEmptyStringsToNull middleware in your application's global middleware stack. These middleware are listed in the stack by the App\Http\Kernel class. Because of this, you will often need to mark your "optional" request fields as nullable if you do not want the validator to consider null values as invalid.
Tested with Laravel 6.0-dev
Full list of available rules
In laravel 5.5 or versions after it, we begin to use nullable instead of sometimes.
according to laravel documentation 8 you must to set nullable rule
for example:
$validated = $request->validate([
'firstName' => ['required','max:255'],
'lastName' => ['required','max:255'],
'branches' => ['required'],
'services' => ['required' , 'json'],
'contract' => ['required' , 'max:255'],
'FixSalary' => ['nullable','numeric' , 'max:90000000'],
'Percent' => ['nullable','numeric' , 'max:100'],
]);
in your case :
$this->validate($request, [
'provinces_id' => 'required|numeric',
'type' => 'required',
'bed' => 'nullable|numeric',
]);
I am trying to ensure a field is valid if the value appears in a predefined array, but it's not working for me.
The validation rule I am using is:
'title' => [
'required',
'in' => ['Mr', 'Mrs', 'Miss', 'Ms'],
],
But it seems to pass validation if I enter an invalid value, such as "Dr".
Anyone know the correct way to do this?
Try with a string validation rule instead of array:
'title' => 'required|in:Mr,Mrs,Miss,Ms';