Dear all,
I am trying to use a custom validation callback function, from a model (not from the controller, as I am trying to keep them slim), and this function takes two parameters.
As described in the documentation, I am using arrays to make these methods callable.
Here is a sample of my controller's method :
PHP Code:
public function saveOrUpdate()
{
$this->load->model('TravelModel');
if ($this->TravelModel->runValidation() == FALSE) {
//An error occured --> REPOST form
//...
} else {
//Validation OK --> SAVE values
//...
}
}
Here is a sample of the model's method :
PHP Code:
public function runValidation():bool{
$this->load->library('form_validation');
$this->form_validation->set_rules('title', 'Title', 'trim|required|max_length[150]');
$this->form_validation->set_rules(
'startdate',
'Start',
array(
'required',
array($this->TravelModel, 'endAfterStart['.$this->input->post('enddate').']'),
array($this->TravelModel, 'isValidDate'),
)
);
$this->form_validation->set_rules('enddate', 'End', array('required',array($this->TravelModel, 'isValidDate')));
return($this->form_validation->run());
}
And finally, an example of two callback functions :
PHP Code:
public function isValidDate(string $date): bool
{
if (isValidBelgianDate($date)) return true;
$this->form_validation->set_message('isValidDate', 'Date is invalid');
return false;
}
public function endAfterStart($startDate, $endDate): bool
{
$startDate = DateTime::createFromFormat('!d/m/Y', $startDate);
$endDate = DateTime::createFromFormat('!d/m/Y', $endDate);
$this->form_validation->set_message('endAfterStart', 'Start date should be less than end date.');
return ($endDate >= $startDate);
}
For your info, isValidDate is working perfectly, since this function takes only one parameter.
However endAfterStart is not working. I always get these errors :
Severity: Notice
Message: Array to string conversion
Filename: libraries/Form_validation.php
Line Number: 771
Message: preg_match() expects parameter 2 to be string, array given
Filename: libraries/Form_validation.php
Line Number: 695
What can I do?
If I extend the CI_Form_validation in a MY_Form_Validation, this mechanism is working quite well (you just have to pass multiple parameters as a single string with separators) but I really would like to keep these callbacks in my models together.
Thank you very much.
