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Gravity Wiz // Gravity Forms // Random Field Order
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| <?php | |
| /** | |
| * WARNING! THIS SNIPPET MAY BE OUTDATED. | |
| * The latest version of this snippet can be found in the Gravity Wiz Snippet Library: | |
| * https://github.com/gravitywiz/snippet-library/blob/master/gravity-forms/gw-random-fields.php | |
| */ | |
| /** | |
| * Gravity Wiz // Gravity Forms // Random Fields | |
| * | |
| * Randomly display a specified number of fields on your form. | |
| * | |
| * @version 1.1 | |
| * @author David Smith <david@gravitywiz.com> | |
| * @license GPL-2.0+ | |
| * @link https://gravitywiz.com/random-fields-with-gravity-forms/ | |
| * | |
| * Plugin Name: Gravity Forms Random Fields | |
| * Plugin URI: https://gravitywiz.com/random-fields-with-gravity-forms/ | |
| * Description: Randomly display a specified number of fields on your form. | |
| * Author: Gravity Wiz | |
| * Version: 1.1 | |
| * Author URI: http://gravitywiz.com | |
| */ | |
| class GFRandomFields { | |
| public $all_random_field_ids; | |
| public $display_count; | |
| public $selected_field_ids = array(); | |
| public function __construct( $form_id, $display_count = 5, $random_field_ids = false ) { | |
| $this->_form_id = $form_id; | |
| $this->all_random_field_ids = (array) $random_field_ids; | |
| $this->display_count = $display_count; | |
| add_filter( "gform_pre_render_$form_id", array( $this, 'pre_render' ) ); | |
| add_filter( "gform_form_tag_$form_id", array( $this, 'store_selected_field_ids' ) ); | |
| add_filter( "gform_validation_$form_id", array( $this, 'validate' ) ); | |
| add_filter( "gform_pre_submission_filter_$form_id", array( $this, 'pre_render' ) ); | |
| //add_filter( "gform_admin_pre_render_$form_id", array( $this, 'admin_pre_render' ) ); | |
| //add_action( 'gform_entry_created', array( $this, 'save_selected_field_ids_meta' ), 10, 2 ); | |
| } | |
| public function pre_render( $form ) { | |
| return $this->filter_form_fields( $form, $this->get_selected_field_ids() ); | |
| } | |
| public function admin_pre_render( $form ) { | |
| if ( $form['id'] != $this->_form_id ) { | |
| return $form; | |
| } | |
| return $form; | |
| } | |
| public function store_selected_field_ids( $form_tag ) { | |
| $hash = $this->get_selected_field_ids_hash(); | |
| $value = implode( ',', $this->get_selected_field_ids() ); | |
| $input = sprintf( '<input type="hidden" value="%s" name="gfrf_field_ids_%s">', $value, $hash ); | |
| return $form_tag . $input; | |
| } | |
| public function validate( $validation_result ) { | |
| $validation_result['form'] = $this->filter_form_fields( $validation_result['form'], $this->get_selected_field_ids() ); | |
| $validation_result['is_valid'] = true; | |
| foreach ( $validation_result['form']['fields'] as $field ) { | |
| if ( $field['failed_validation'] ) { | |
| $validation_result['is_valid'] = false; | |
| } | |
| } | |
| return $validation_result; | |
| } | |
| public function filter_form_fields( $form, $selected_fields ) { | |
| $filtered_fields = array(); | |
| foreach ( $form['fields'] as $field ) { | |
| if ( in_array( $field['id'], $this->all_random_field_ids ) ) { | |
| if ( in_array( $field['id'], $selected_fields ) ) { | |
| $filtered_fields[] = $field; | |
| } | |
| } else { | |
| $filtered_fields[] = $field; | |
| } | |
| } | |
| $form['fields'] = $filtered_fields; | |
| return $form; | |
| } | |
| public function get_selected_field_ids( $entry_id = false ) { | |
| // check if class has already init fields | |
| if ( !empty( $this->selected_field_ids ) ) { | |
| return $this->selected_field_ids; | |
| } | |
| $hash = $this->get_selected_field_ids_hash(); | |
| // If entry ID is passed, retrieve selected fields IDs from entry meta. | |
| if ( $entry_id ) { | |
| $field_ids = gform_get_meta( $entry_id, "_gfrf_field_ids_{$hash}" ); | |
| return is_array( $field_ids ) ? $field_ids : array(); | |
| } | |
| // Check if fields have been submitted. | |
| $field_ids = rgpost( "gfrf_field_ids_{$hash}" ); | |
| if ( !empty( $field_ids ) ) { | |
| return explode( ',', $field_ids ); | |
| } | |
| $field_ids = array(); | |
| $keys = array_rand( $this->all_random_field_ids, $this->display_count ); | |
| if ( !is_array( $keys ) ) { | |
| $keys = array( $keys ); | |
| } | |
| foreach ( $keys as $key ) { | |
| $field_ids[] = $this->all_random_field_ids[$key]; | |
| } | |
| $this->selected_field_ids = $field_ids; | |
| return $field_ids; | |
| } | |
| public function get_selected_field_ids_hash() { | |
| return wp_hash( implode( '_', $this->all_random_field_ids ) ); | |
| } | |
| public function save_selected_field_ids_meta( $entry, $form ) { | |
| if ( $form['id'] == $this->_form_id ) { | |
| $hash = $this->get_selected_field_ids_hash(); | |
| gform_add_meta( $entry['id'], "_gfrf_field_ids_{$hash}", $this->get_selected_field_ids() ); | |
| } | |
| } | |
| } | |
| new GFRandomFields( 167, 2, array( 1, 2, 3, 4, 5 ) ); | |
| new GFRandomFields( 167, 2, array( 8, 9, 10 ) ); |
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for contacting us! We will get in touch with you shortly.","url":"","pageId":"","queryString":"","disableAutoformat":false,"id":"5179a76e802a2","name":"Default Confirmation","isDefault":true}],"notifications":[{"to":"{admin_email}","subject":"New submission from {form_title}","message":"{all_fields}","toType":"email","event":"form_submission","name":"Admin Notification","type":"admin","id":"5179a76e80754"}]},"version":"2.2.2"} |
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👉 This Gist has been migrated to the Gravity Wiz Snippet Library:
https://github.com/gravitywiz/snippet-library/blob/master/gravity-forms/gw-random-fields.php