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+--- Thread: Validation: one of two field required (/showthread.php?tid=78426)
Validation: one of two field required - Codinglander - 01-18-2021
Hello.
I have a form in which two fields are related.
I want at least one of the two fields to be filled out. It is also conceivable that both are filled in, but not that neither is filled out.
Is there a validation rule for this? Or can someone help me with a solution?
Greetings,
Kigh ...
RE: Validation: one of two field required - kleber - 01-18-2021
https://codeigniter.com/userguide3/libraries/form_validation.html#callbacks-your-own-validation-methods
I think you can create your own validation rule for this case. Or you can follow the code below. I think you can do that on CI4 too.
PHP Code:
if(!isset($_POST['field_one']) and !isset($_POST['field_two'])){
$this->form_validation->set_message('required', 'At least one field must be filled!');
$this->form_validation->set_rules('field_one', 'field one', 'required');
$this->form_validation->set_rules('field_two', 'field two', 'required');
}
RE: Validation: one of two field required - Codinglander - 01-18-2021
Hmmm... okay, today afternoon I#ll try it...
RE: Validation: one of two field required - AndresHDZ - 01-19-2021
For CI 4:
PHP Code:
if($this->request->getPost('field_one') == '' && $this->request->getPost('field_two')){
$error_msg = 'You need to fill field_one or field_two.';
}else{
$validation = Services::validation();
if($this->request->getPost('field_one')){
$validation->setRule('field_one', 'label 1', 'YOUR RULES HERE');
}
if($this->request->getPost('field_two')){
$validation->setRule('field_two', 'label 2', 'YOUR RULES HERE');
}
if($validation->withRequest($this->request)->run() == false){
$error_msg = $validation->listErrors();
}else{
/* Here your success code */
}
}
Where $error_msg contains your error.