https://legacy.forums.gravityhelp.com/topic/challenges-with-validating-select-fields Gravity Support Forums Topic: Challenges with validating select fields / en-US Tue, 21 Apr 2026 17:27:49 +0000 http://bbpress.org/?v=1.0.1 q https://legacy.forums.gravityhelp.com/search.php https://legacy.forums.gravityhelp.com/topic/challenges-with-validating-select-fields#post-51202 Sat, 03 Mar 2012 00:04:03 +0000 Idealien 51202@https://legacy.forums.gravityhelp.com/ <p>The following will work for custom validation of select fields, to check against ' ' (single space with quotes) and rgpost().</p> <pre><code>if( rgpost(&quot;input_19&quot;) == &#39; &#39; ) { $validation_result[&#39;is_valid&#39;] = false; $field[&#39;failed_validation&#39;] = true; $field[&#39;validation_message&#39;] = &#39;This field is required.&#39;; }</code></pre> https://legacy.forums.gravityhelp.com/topic/challenges-with-validating-select-fields#post-50510 Sat, 25 Feb 2012 13:15:22 +0000 Idealien 50510@https://legacy.forums.gravityhelp.com/ <p>The following code works to validate a text field (input_25 = City) after checking the value of another that defines what mode the form is being used in (input_27 = City or Event). However trying to do the same thing for a drop-down that has states (Input_19) has not proven to be so kind.</p> <p>It will always trip the validation error on the drop-down version regardless of entry. I've tried it in non-enhanced and enhanced mode, with any combination of rgpost() and comparison of values. It is posting to a custom field on the backend when successful.</p> <pre><code>&lt;?php function validate_rideshare($validation_result){ $form = $validation_result[&quot;form&quot;]; $rideshareFormType = strpos($form[&#39;cssClass&#39;], &#39;idealien_rideshare_gf&#39;); if( $rideshareFormType === false || $validation_result[&quot;is_valid&quot;] === false) return $validation_result; if( $_POST[&quot;input_27&quot;] == &#39;City&#39; ) { foreach($form[&#39;fields&#39;] as $key=&gt;&amp;$field) { switch ($field[&#39;postCustomFieldName&#39;]) { case &#39;idealien_rideshare_destinationCity&#39;: //Destination City if( !$_POST[&quot;input_25&quot;] ) { $validation_result[&#39;is_valid&#39;] = false; $field[&#39;failed_validation&#39;] = true; $field[&#39;validation_message&#39;] = &#39;This field is required.&#39;; } break; /* case &#39;idealien_rideshare_destinationStateProv&#39;: //Destination State / Prov //**CORE PROBLEM AREA I THINK** if( !rgpost(&quot;input_19&quot;) ) { $validation_result[&#39;is_valid&#39;] = false; $field[&#39;failed_validation&#39;] = true; $field[&#39;validation_message&#39;] = &#39;This field is required.&#39;; } break; */ } } } $validation_result[&quot;form&quot;] = $form; return $validation_result; } ?&gt;</code></pre> <p>Reading the docs further it seems like <a href="http://www.gravityhelp.com/documentation/page/Gform_field_validation" rel="nofollow">Gform_field_validation</a> would be a good candidate for this, but a couple things confused me about it. If showing an example based on that is easy(ier), that would be great.</p> <ul> <li>How to get the non-validated field (input_27 == city) without doing a foreach loop on the $form value.</li> </ul>