I'm trying to validate some POST data. One of the validations I need to do is a registration code, which is based off another POST variable - an IMEI number.
In my POST data I have 2 fields, register_imei and register_code. My code currently looks like this:
$post = Validate::factory($_POST);
$post->rule('register_imei', 'not_empty')
->rule('register_imei', 'exact_length', array(15))
->rule('register_imei', 'some_class::luhn_check');
$post->rule('register_code', 'not_empty')
->rule('register_code', 'some_class::valid_registration_code', array($_POST['register_imei']));
However, I'm not sure whether passing in the variable from the raw POST array field is ok, because it could be empty or not set. Does the fact that I've already added validation rules for register_imei above make it safe?
Does the fact that I've already added validation rules for register_imei above make it safe?
No validation is taken place until you call the check() method.
To solve your problem, use:
Arr::get($_POST, 'register_imei', NULL);
which returns the 3rd argument as a default if the key is not set in the array.
Related
Here is my script:-
if (!isset($request->security_token))
{
// Provide security token
$error = TRUE;
$err_message[] = Lang::get('caption_validation_error.ser_valid_security_token.value');
$err_validation[] = Lang::get('caption_validation_error.ser_valid_security_token.value').' [security_token]';
}
It means, if a param is not "sent", then the validation will be triggered. However, if a param with "blank" value is sent, it must not trigger the validation.
However, when I am hitting the api through POSTMAN app, the security_token with blank value enters the !isset validation.
What am I doing wrong?
This is not that obvious why it's like this because it seems quite strange at first glance. However if you know a bit more about Laravel and you look at app/Http/Kernel.php file you will see in there:
\Illuminate\Foundation\Http\Middleware\ConvertEmptyStringsToNull::class,
which as you can find out from name converts empty strings to null. So in your case when you are sending empty parameter it's considered as null so !isset($null) will be true.
So you have 2 options:
remove this middleware from array - however it will affect the whole application so it might not be the best way if you are not sure about it
Assuming you want to trigger this validation only if parameter is not sent at all instead of
if (!isset($request->security_token))
you can use for example
if (!$request->has('security_token'))
Obviously it's not exactly the same - if you now sent this token and set it to null it won't be still executed but I believe when you now know what's happening with this empty string you can now adjust it exactly to your needs.
When we receive a Request object in Laravel, is there a way to modify or add data to it? For instance, could I rename a parameter (not the value, but the parameter name itself) to something else? For example, the input might be called fname but I want to change it to first_name. Or could I add new inputs and values that weren't in the original request?
The reason I ask is that I have a method that accepts a Request object, and expects certain input names. I'd like to be able to reuse the method, but the request input names will be different.
If you have an Object you can edit and add new items.
$request->url = $new_url;
$request->new_item = 1;
If the object item not exists, then will create automatically, or if it exists, will modify it.
Tested #marc-garcia answer, and that will not persist through your script execution. This will...
// merge defaults into the request.
// this makes it consistent everywhere (blade, controller...)
request()->merge([
// find the request if it exists, second param is the default value
'reservable' =>request( 'reservable', (self::RESERVABLE_BY_DEFAULT?1:0) )
]);
You may also use request()->replace([...]); but that will remove all other parameters from the request and replace it will the array you provide.
valueWhen I want to validate posted value in Codeigniter, I do it in the following way:
$this->form_validation->set_rules('name', 'Name','required|xss_clean|strip_tags|trim|max_length[50]|alpha');
But I cannot understand how can I do the same validation for $name variable if it is grabbed from url like this:
$name = end($this->uri->segment_array());
I tried to do this and then validate in the same way
$this->form_validation->set_value('name', $name);
but validation did not pass. Could you please help me.
Technically we refer to this particular validation library as Form Validation which works on form data.
There are other methods such as using route files (which is a perfect tool in CI) that you can take advantage of for URL checking.
Beside any already-developed tools (like uri-validator), you can write your own validating functions.
I am sending over a series of array values from a posted form to an MVC3 Controller. I was hoping the default modelbinder would be able to parse this but I'm having some difficulty with it.
The array is in the following format:
order[0].[type]=some value.
I think this is the reason the model binder is not parsing my values because I'm not getting anything populated in my model.
What would be another way to handle this?
Probably need to post more of your code so I can see what you are doing exactly. However saying this you need to pass the model to the view/partial view on the response you are trying to retrieve on the post request.
If not you will have to iterate through the Form Collection that will be returned and the Actions Methods type e.g. ActionMethodName(FormCollection form), one issue is name versus id its the name of the Kendo UI control that is used to get the value not the id.
1As far as I remember the right format was:
orders[0].OrderID=13;
orders[0].Name="test";
orders[1].OrderID=15;
orders[1].Name="again test";
The indexing should start from 0 and increase by 1.
Check this out: http://haacked.com/archive/2008/10/23/model-binding-to-a-list.aspx
I am using Codeigniter form validation. In my registration form the Username field allows only numbers like 123456. I don't want this to happen.
My validation rule is as follows
'rules'=>'trim|required|alpha_numeric|min_length[6]|xss_clean'
I want to prevent users entering just numeric strings. Alpha numeric strings are fine, alpha strings are fine, but purely numeric ones are not.
To allow only letters
Add alpha to your rules and remove alpha_numeric from your rules
You can use this page as a point of reference for built in validation rules.
Edit:
Since you've clarified now.
To achieve this, there's no built in validation rule. You will need to extend the Form_validation library by creating a libraries/MY_Form_validation.php file. See this manual page on how to extend libraries.
In this file, create the following function
function at_least_one_letter($string) {
return preg_match('#[a-zA-Z]#', $string);
}
Then you can add the validation rule at_least_one_letter to your rules.
According to the codeigniter user manual :
You can also use any native PHP functions that permit one parameter.
I think in this case is_int could be used as your validation rule.
So, for instance:
'rules'=>'trim|required|is_int|min_length[6]|xss_clean',