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Route Notifications Via Username & Email

Format your email field(s) in notifications as {usernames:user1:user2}{emails:account@example.com} or {usernames:user1:user2:user3} or as usual.

// Allow Gravity Form notification email fields to use usernames and email
// Format your email fields in notifications as {usernames:user1:user2:user3} or {usernames:user1:user2}{emails:account@example.com}
add_filter( 'gform_notification', function ( $notification, $form, $entry ) {

   // reusable function for translating routes
   function typewheel_gform_notification_translate_routes( $routes ) {

      if ( strpos( $routes, '{usernames' ) !== false || strpos( $routes, '{emails' ) !== false ) {

         // parse the username and email batches
         $routes = str_replace( array( '} {', '},{' ), '}{', $routes );
         $batches = explode( '}{', substr( $routes, 1, -1 ) );

         foreach ( $batches as $key => $batch ) {

            if ( strpos( $batch, 'usernames' ) !== false )
               $usernames = explode( ':', $batch );

            if ( strpos( $batch, 'emails' ) !== false )
               $emails = explode( ':', $batch );

         }

         $to = array(); // initialize the to array

         // loop through users and grab the email
         if ( isset( $usernames ) ) {
            unset( $usernames[0] );
            foreach ( $usernames as $username ) {
               $user = get_user_by( 'login', $username );
               if ( $user !== false ) $to[] = $user->user_email;
            }
         }

         // loop through the email addresses
         if ( isset( $emails ) ) {
            unset( $emails[0] );
            foreach ( $emails as $email ) $to[] = $email;
         }

         // add all addresses to the notification
         $routes = implode( ',', $to );

      }

      return $routes;

   } // end typewheel_gform_notification_translate_routes()

   // run all email fields in the notification through route translation
   if ( $notification['toType'] == 'email' ) {

      $notification['to'] = typewheel_gform_notification_translate_routes( $notification['to'] );

   } else if ( $notification['toType'] == 'routing' ) {

      foreach ( $notification['routing'] as $key => $route )
         $notification['routing'][ $key ]['email'] = typewheel_gform_notification_translate_routes( $notification['routing'][ $key ]['email'] );

   }

   $notification['from'] = typewheel_gform_notification_translate_routes( $notification['from'] );
   $notification['replyTo'] = typewheel_gform_notification_translate_routes( $notification['replyTo'] );
   $notification['bcc'] = typewheel_gform_notification_translate_routes( $notification['bcc'] );

   return $notification;

}, 10, 3 );

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Prevent Submission When Pressing Enter

<?php // Disables form submission when pressing Enter, unless user has tabbed to a form button.
add_action( 'gform_pre_render', function ( $form ) { ?>

   <script type="text/javascript">
      jQuery(document).bind('gform_post_render', function() {
         jQuery(document).on( 'keypress', '.gform_wrapper', function (e) {
            var code = e.keyCode || e.which;
            if ( code == 13 && ! jQuery( e.target ).is( 'textarea,input[type="submit"],input[type="button"]' ) ) {
               e.preventDefault();
               return false;
            }
         });
      });
   </script>

   <?php return $form;

} );

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Capture Post Content in a Gravity Form Field

Optionally @replace .entry-content, <!-- START CONTRACT -->, <!-- END CONTRACT -->

// Send all HTML content between contentStart and contentEnd comments into Gravity Form paragraph text field with class of `content_receiver`
<script>
   jQuery(document).ready(function(){
      const contentStart = '<!-- START CONTRACT -->';
      const contentEnd = '<!-- END CONTRACT -->';
      const contentFull = jQuery('.entry-content').html();
      const contentSent = contentFull.substr(0,contentFull.indexOf(contentEnd)).substr(contentFull.indexOf(contentStart)).replace(contentStart,'');
      jQuery('.content_receiver textarea').val(contentSent.replace(/\n/gm,' '));
   });
</script>

Source

Show Field(s) Across Multiple Pages of Gravity Form

@replace {{_formID}}

<?php // Prepends or appends fields (marked by class `prepend-to-pages` or `append-to-pages` respectively) to every page of a Gravity Form
add_action( 'gform_pre_render{{_formID}}', function( $form ) {

   add_action( 'wp_footer', function () { ?>

      <script type="text/javascript">
         jQuery(document).bind('gform_post_render', function(event, form_id, current_page) {

            jQuery(jQuery('.gfield.prepend-to-pages').get().reverse()).each(function() {
               jQuery(this).prependTo(`#gform_page_${form_id}_${current_page} .gform_fields`);
            });

            jQuery(jQuery('.gfield.append-to-pages').get().reverse()).each(function() {
               jQuery(this).appendTo(`#gform_page_${form_id}_${current_page} .gform_fields`);
            });

         } );
      </script>

   <?php } );

   return $form;

} );

Source

Limit Countries

@replace {{_formID}}

// Filter the countries that are selectable in an address field
add_filter( 'gform_pre_render{{_formID}}', 'typewheel_limit_countries' );
add_filter( 'gform_pre_validation{{_formID}}', 'typewheel_limit_countries' );
add_filter( 'gform_pre_submission_filter{{_formID}}', 'typewheel_limit_countries' );
add_filter( 'gform_admin_pre_render{{_formID}}', 'typewheel_limit_countries' );

function typewheel_limit_countries( $form ) {

  add_filter( 'gform_countries', function( $countries ) {
    return array( 'Brazil', 'United States', 'Netherlands', 'United Kingdom' );
  });

  return $form;

}

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Add CSS Class to Filled Fields

@replace {{class}}

<?php
// Checks whether form inputs are filled and adds a targetable class if they have value
add_action( 'wp_footer', function () { ?>

   <script type="text/javascript">
      jQuery(document).ready( function() {
         function checkFilledInputs() {
            jQuery('textarea,input').each( function() { toggleFilledInputs(this); });
            jQuery('textarea,input').change( function() { toggleFilledInputs(this); });
         }

         function toggleFilledInputs(e) {
            if ( jQuery(e).val().trim().length > 0 ) {
               jQuery(e).addClass('{{class}}');
            } else {
               jQuery(e).removeClass('{{class}}');
            }
         }

         jQuery(document).bind('gform_post_render', function() { checkFilledInputs(); });
         
         checkFilledInputs();
      });
   </script>

<?php } );

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A suite of 31+ essential Gravity Forms addons.

Change Loading Spinner

@replace {{img-src}}

// Set a custom image src for the spinner that runs when processing AJAX requests
add_filter( 'gform_ajax_spinner_url', function( $image_src, $form ) {
   return '{{img-src}}';
}, 10, 2 );

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Notification Interception

@replace {{_formID}}, {{email}}

// Sends all Gravity Form notifications to the specified email address
add_filter( 'gform_notification{{_formID}}', function ( $notification, $form, $entry ) {

   $notification['toType'] = 'email';
   $notification['to'] = '{{email}}';

   return $notification;

}, 10, 3 );

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Replace Numbered Months with Named Months in Date Field

<?php // Replace the numbered months with named months in a Gravity Forms dropdown date field
add_action( 'wp_footer', function () { ?>

   <script type="text/javascript">
      jQuery(document).ready(function( $ ) {
         $('.gfield_date_dropdown_month select option').each( function(i, option) {
            switch( option.value ) {
               case '1': option.innerHTML = 'January'; break;
               case '2': option.innerHTML = 'February'; break;
               case '3': option.innerHTML = 'March'; break;
               case '4': option.innerHTML = 'April'; break;
               case '5': option.innerHTML = 'May'; break;
               case '6': option.innerHTML = 'June'; break;
               case '7': option.innerHTML = 'July'; break;
               case '8': option.innerHTML = 'August'; break;
               case '9': option.innerHTML = 'September'; break;
               case '10': option.innerHTML = 'October'; break;
               case '11': option.innerHTML = 'November'; break;
               case '12': option.innerHTML = 'December'; break;
            }
         });
      });
   </script>

<?php } );

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Custom Merge Tags

<?php // Introduce additional merge tags for use throughout Gravity Forms
add_filter( 'gform_replace_merge_tags', function ( $text, $form, $entry, $url_encode, $esc_html, $nl2br, $format ) {

   $custom_merge_tags = array(
      '{date_ymd}'  => date( 'Y.m-M.d', strtotime( $entry['date_created'] ) ),
      '{timestamp}' => time(),
      '{site_url}'  => get_site_url(),
      '{site_name}' => get_bloginfo( 'name' )
   );
    
   return str_replace( array_keys( $custom_merge_tags ), array_values( $custom_merge_tags ), $text);

}, 10, 7 );

// Add our custom merge tags to the dropdown
add_action( 'gform_admin_pre_render', function ( $form ) { ?>

   <script type="text/javascript">
      gform.addFilter('gform_merge_tags', function (mergeTags, elementId, hideAllFields, excludeFieldTypes, isPrepop, option) {
         mergeTags["custom"].tags.push({ tag: '{date_ymd}', label: 'Entry Date (Y.m-M.d)' });
         mergeTags["custom"].tags.push({ tag: '{timestamp}', label: 'Current Time (UNIX Timestamp)' });
         mergeTags["custom"].tags.push({ tag: '{site_url}', label: 'Site URL' });
         mergeTags["custom"].tags.push({ tag: '{site_name}', label: 'Site Name' });
         return mergeTags;
      } );
   </script>

   <?php return $form;

} );

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