https://legacy.forums.gravityhelp.com/topic/cancel-a-form-submit-using-gform_pre_submission Gravity Support Forums Topic: Cancel a form submit using gform_pre_submission en-US Tue, 21 Apr 2026 15:46:56 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/cancel-a-form-submit-using-gform_pre_submission#post-11747 Thu, 28 Oct 2010 11:51:07 +0000 Alex Cancado 11747@https://legacy.forums.gravityhelp.com/ <p>You do want do use gform_validation. That is the only hook that can stop a form submission.<br /> You should be able to read the submitted email the same way you do on gform_pre_submission (i.e. $_POST["input_7"] ).<br /> The key is to set the "failed_validation" and "validation_message" property of the field to mark it as failed.<br /> Following is a code snippet to point you in the right direction.<br /> Good Luck.<br /> <pre><code>&lt;?php add_filter(&#39;gform_validation&#39;, &#39;custom_validation&#39;); function custom_validation($validation_result){ // set the form validation to false $validation_result[&quot;is_valid&quot;] = false; $form = $validation_result[&quot;form&quot;]; // specify the first field to be invalid and provide a custom validation message $form[&quot;fields&quot;][0][&quot;failed_validation&quot;] = true; $form[&quot;fields&quot;][0][&quot;validation_message&quot;] = &quot;This field is invalid!&quot;; // update the form in the validation result with the form object you modified $validation_result[&quot;form&quot;] = $form; return $validation_result; } ?&gt;</code></pre> https://legacy.forums.gravityhelp.com/topic/cancel-a-form-submit-using-gform_pre_submission#post-11726 Thu, 28 Oct 2010 05:33:24 +0000 CollegeDegrees 11726@https://legacy.forums.gravityhelp.com/ <p>On again, off again... I have messed around with gform_validation and that doesn't seem to be what I want either... Basically I want to validate an email against an internal scrub list and if the email is there then I want to block the form submit and display a message to the user letting them know I need a different email address. I can easily grab the field and do the check using gform_pre_submission, but I am not sure of exactly how to do that if it is right at all with gform_validation.</p> <p>So in gform_pre_submission I just do the following:</p> <p>$email = $_POST["input_7"];</p> <p>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...).</p> <p>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. </p> <p>Has anyone else tried anything remotely similar in the past? Any help would be greatly appreciated. </p> https://legacy.forums.gravityhelp.com/topic/cancel-a-form-submit-using-gform_pre_submission#post-11716 Wed, 27 Oct 2010 18:03:13 +0000 CollegeDegrees 11716@https://legacy.forums.gravityhelp.com/ <p>Oh, never mind I got it... I need to use gform_validation... Okay, will do. </p> https://legacy.forums.gravityhelp.com/topic/cancel-a-form-submit-using-gform_pre_submission#post-11715 Wed, 27 Oct 2010 17:42:08 +0000 CollegeDegrees 11715@https://legacy.forums.gravityhelp.com/ <p>I should say that the value I tried wiping is that of a required field. </p> https://legacy.forums.gravityhelp.com/topic/cancel-a-form-submit-using-gform_pre_submission#post-11714 Wed, 27 Oct 2010 17:34:47 +0000 CollegeDegrees 11714@https://legacy.forums.gravityhelp.com/ <p>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?</p> <p>Thank you! </p>