Gravity Support Forums Topic: Require just the zip code?

Gravity Support Forums Topic: Require just the zip code? https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code Gravity Support Forums Topic: Require just the zip code? en-US Wed, 22 Apr 2026 10:51:30 +0000 http://bbpress.org/?v=1.0.1 <![CDATA[Search]]> q https://legacy.forums.gravityhelp.com/search.php shmooth on "Require just the zip code?" https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code#post-14770 Mon, 20 Dec 2010 04:41:44 +0000 shmooth 14770@https://legacy.forums.gravityhelp.com/ Hi all, Thought I'd add a note for other n00bs like me: 1) when I first copied this example, I somehow got rid of the following line -- that will break things: $form = $validation_result["form"]; 2) to get access to the submitted data, you have to access it via the regular HTTP $_POST["input_name"] PHP server variable (where 'input_name' is probably 'input_1', etc.), b/c at this stage of processing, the $form does not seem to have the submitted values set. so, my full, working test example is: <pre><code>add_filter('gform_validation', 'custom_validation'); function custom_validation($validation_result){ $form = $validation_result["form"]; // if value of first field name != 'peter' if( strcmp($_POST["input_1"],"peter")!=0 ){ // then mark this submission invalid $validation_result["is_valid"] = false; // mark the errant field [the first (0th) field] $form["fields"][0]["failed_validation"] = true; // and put in an explanatory message to the user on how to fix $form["fields"][0]["validation_message"] = "This first field must have the value 'peter'."; } // update the form in the validation result with the form object you modified $validation_result["form"] = $form; return $validation_result; }</code></pre> Carl Hancock on "Require just the zip code?" https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code#post-12782 Tue, 16 Nov 2010 19:32:59 +0000 Carl Hancock 12782@https://legacy.forums.gravityhelp.com/ A complete list of filters will be available with the new documentation that will launch along with the 1.5 final release once it is out of beta testing. ananda on "Require just the zip code?" https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code#post-12781 Tue, 16 Nov 2010 19:11:38 +0000 ananda 12781@https://legacy.forums.gravityhelp.com/ Superb. Thanks, Alex. Is there a complete list of filters anywhere? Alex Cancado on "Require just the zip code?" https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code#post-12662 Sat, 13 Nov 2010 20:54:56 +0000 Alex Cancado 12662@https://legacy.forums.gravityhelp.com/ You would actually need to use the gform_validation filter. Following is a simple example on how to fail a validation for the first field in the form. It should point you in the right direction <pre><code><?php add_filter('gform_validation', 'custom_validation'); function custom_validation($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 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; } ?></code></pre> ananda on "Require just the zip code?" https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code#post-12602 Fri, 12 Nov 2010 15:47:10 +0000 ananda 12602@https://legacy.forums.gravityhelp.com/ Hi Alex, thanks for your answer. That's great to know. I see now that the hooks are documented. Looks like I would use gform_pre_submission to run a validation on the zip code and -- somehow?? -- stop the form? Alex Cancado on "Require just the zip code?" https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code#post-12576 Fri, 12 Nov 2010 10:31:35 +0000 Alex Cancado 12576@https://legacy.forums.gravityhelp.com/ Ananda, This is possible through a hook and a few lines of PHP, but it will require some PHP experience. ananda on "Require just the zip code?" https://legacy.forums.gravityhelp.com/topic/require-just-the-zip-code#post-12556 Thu, 11 Nov 2010 21:45:42 +0000 ananda 12556@https://legacy.forums.gravityhelp.com/ We'd like to able to require just the zip code field of an address. Is this possible, using the pre-built address field? This is a form it would be good to do on: <a href="http://www.anandala.org/free-book-chapters/" rel="nofollow">http://www.anandala.org/free-book-chapters/</a> Thanks!