Lets assume I have user generated data which is not coming through a form post. Is there a way I can use/ extend CodeIgnitors form_validation class to validate that data.
eg.
<?php
$userData = array('name' => 'tt' , 'city' => 'London' , 'age' => '1200' );
// How can I validate this data using form_validation checks
// like min_length,max_length,and apply some processing
// like trim,xss_clean provided by the same class
?>
Yes you can via set_data() method, Here you go.
$this->form_validation->set_data(array(
'name' => 'Full Name',
'city' => 'City',
));
$this->form_validation->set_rules('name', 'Name', 'trim|required');
$this->form_validation->set_rules('city', 'City', 'trim|required');
$this->form_validation->set_rules('age', 'Age', 'trim|required');
if ($this->form_validation->run() == FALSE) {
echo 'Invalid: ' . validation_errors();
} else {
echo 'Valid';
}
You can extend the run and set_rule method of the core form validation lib of codeigniter. This how i do it without extending the core :
// Data coming from backbone model
$data = json_decode(file_get_contents('php://input'), true);
$this->config->load('myValidConf/form_validation');
$non_post = array(
'foo' => $data['foo']
);
$_POST = $non_post;
if ($this->form_validation->run('myConfigarray')!== FALSE) {
echo 'we're ok';
} else {
echo validation_errors() ;
}
Hope it helps you.
Might sound like a dirty hack, but you could spoof a form post by setting $_POST data? Say you receive JSON, you could do something like:
$json = "...."; //json encoded string
$arr = json_decode($json, true);
foreach($arr as $key => $value)
{
$_POST[$key] => $value;
}
// do form validation as if the data was posted from a form.
This is offcourse just a quick fix. You could extend/overwrite parts of the Form_validation library. How I would do it:
$_POST (set_rules(), run(), matches())$_POST in MY_Form_validation.php with $this->validate_data$validate_data to $_POST in the constructor.set_validate_data() that allows you to overwrite $this->validate_dataYou will have to use the $_POST array after the data has been validated, if you want to use the cleaned data. If this is unacceptable, also add a function that cleans $this->validate_data and returns an XSS clean array.
