CollegeDegrees
Member
So I have some additional validation that I am doing in the hook gform_pre_submission and would like to know how to make the form cancel. For instance, I tried wiping out the value of a post field and that did not work. Is there some easy way to do this?
Thank you!
CollegeDegrees
Member
On again, off again... I have messed around with gform_validation and that doesn't seem to be what I want either... Basically I want to validate an email against an internal scrub list and if the email is there then I want to block the form submit and display a message to the user letting them know I need a different email address. I can easily grab the field and do the check using gform_pre_submission, but I am not sure of exactly how to do that if it is right at all with gform_validation.
So in gform_pre_submission I just do the following:
$email = $_POST["input_7"];
and I have the email address to lookup against the scrub list. I basically tried just wiping $_POST["input-7"] but it still goes through. I am guessing that is based upon the sequence that the hooks are called (pre_submission is after validation maybe...).
Anyway, this seems like it would be a fairly common problem where people would want to validate some piece of information and stop the form submission so I am assuming that as usual I am making this harder than it needs to be.
Has anyone else tried anything remotely similar in the past? Any help would be greatly appreciated.
You do want do use gform_validation. That is the only hook that can stop a form submission.
You should be able to read the submitted email the same way you do on gform_pre_submission (i.e. $_POST["input_7"] ).
The key is to set the "failed_validation" and "validation_message" property of the field to mark it as failed.
Following is a code snippet to point you in the right direction.
Good Luck.
<?php
add_filter('gform_validation', 'custom_validation');
function custom_validation($validation_result){
// set the form validation to false
$validation_result["is_valid"] = false;
$form = $validation_result["form"];
// specify the first field to be invalid and provide a custom validation message
$form["fields"][0]["failed_validation"] = true;
$form["fields"][0]["validation_message"] = "This field is invalid!";
// update the form in the validation result with the form object you modified
$validation_result["form"] = $form;
return $validation_result;
}
?>