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<?php
/**
* Gravity Wiz // Gravity Forms // Map Submitted Field Values to Another Field
*
* Preview your Gravity forms on the frontend of your website. Adds a "Live Preview" link to the Gravity Forms toolbar.
*
* Usage
*
* 1 - Enable "Allow field to be populated dynamically" option on field which should be populated.
* 2 - In the "Parameter Name" input, enter the merge tag (or merge tags) of the field whose value whould be populated into this field.
*
* Basic Fields
*
* To map a single input field (and most other non-multi-choice fields) enter: {Field Label:1}. It is useful to note that
* you do not actually need the field label portion of any merge tag. {:1} would work as well. Change the "1" to the ID of your field.
*
* Multi-input Fields (i.e. Name, Address, etc)
*
* To map the first and last name of a Name field to a single field, follow the steps above and enter {First Name:1.3} {Last Name:1.6}.
* In this example it is assumed that the name field ID is "1". The input IDs for the first and last name of this field will always be "3" and "6".
*
* @version 1.0
* @author David Smith <david@gravitywiz.com>
* @license GPL-2.0+
* @link http://gravitywiz.com/...
* @copyright 2014 Gravity Wiz
*/
class GWMapFieldToField {
public $lead = null;
function __construct( ) {
add_filter( 'gform_pre_validation', array( $this, 'map_field_to_field' ), 11 );
}
function map_field_to_field( $form ) {
foreach( $form['fields'] as $field ) {
if( is_array( $field['inputs'] ) ) {
$inputs = $field['inputs'];
} else {
$inputs = array(
array(
'id' => $field['id'],
'name' => $field['inputName']
)
);
}
foreach( $inputs as $input ) {
$value = $input['name'];
$post_key = 'input_' . str_replace( '.', '_', $input['id'] );
$current_value = rgpost( $post_key );
preg_match_all( '/{[^{]*?:(\d+(\.\d+)?)(:(.*?))?}/mi', $input['name'], $matches, PREG_SET_ORDER );
// if there is no merge tag in inputName - OR - if there is already a value populated for this field, don't overwrite
if( empty( $matches ) )
continue;
$lead = $this->get_lead( $form );
foreach( $matches as $match ) {
list( $tag, $field_id, $input_id, $filters, $filter ) = array_pad( $match, 5, 0 );
$force = $filter === 'force';
$tag_field = RGFormsModel::get_field( $form, $field_id );
// only process replacement if there is no value OR if force filter is provided
$process_replacement = ! $current_value || $force;
if( $process_replacement && ! RGFormsModel::is_field_hidden( $form, $tag_field, array() ) ) {
$field_value = GFFormsModel::get_field_value( $tag_field );
if( is_array( $field_value ) )
$field_value = implode( ',', array_filter( $field_value ) );
} else {
$field_value = '';
}
$value = str_replace( $match[0], $field_value, $value );
}
if( $value )
$_POST[$post_key] = $value;
}
}
return $form;
}
function get_lead( $form ) {
if( ! $this->lead )
$this->lead = GFFormsModel::create_lead( $form );
return $this->lead;
}
}
new GWMapFieldToField();
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