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Gravity Wiz // Format Fields as Currency via jQuery
<?php
/**
* Format Fields as Currency via jQuery
* http://gravitywiz.com/format-field-as-currency/
*/
class GWFormatMoney {
/**
* Stores a copy of the original field values so once the money-formatted numbers have been cleaned for validation
* they can be restored after being validated.
*
*/
var $_field_values = array();
function __construct() {
add_filter( 'gform_pre_render', array( $this, 'format_money_js' ) );
add_filter( 'gform_pre_validation', array( $this, 'clean_value_for_number_fields' ) );
add_filter( 'gform_validation', array( $this, 'restore_value_for_number_fields' ) );
add_action( 'gform_get_field_value', array( $this, 'format_money' ), 10, 3 );
}
function format_money_js($form) {
$this->enqueue_gravityforms_js();
$script = '(function($){' .
'$(".gf_money input").each( function() { ' .
'$(this).val( gformFormatMoney( $(this).val() ) ); ' .
'}).change( function( event ) { ' .
'$(this).val( gformFormatMoney( $(this).val() ) ); ' .
'}); ' .
'gform.addFilter( "gform_calculation_format_result", "gwMaybeFormatMoney" ); ' .
'window.gwMaybeFormatMoney = function( returnVal, origResult, formulaField, formId ) { ' .
'var field = jQuery("#field_" + formId + "_" + formulaField.field_id); ' .
'return field.hasClass( "gf_money" ) ? gformFormatMoney( origResult ) : returnVal; ' .
'} ' .
'})(jQuery);';
GFFormDisplay::add_init_script( $form['id'], 'format_money', GFFormDisplay::ON_PAGE_RENDER, $script );
return $form;
}
function format_money( $value, $lead, $field ) {
$css_classes = explode( ' ', rgar( $field, 'cssClass' ) );
if( ! in_array( 'gf_money', $css_classes ) )
return $value;
require_once( GFCommon::get_base_path() . '/currency.php' );
$currency = new RGCurrency( GFCommon::get_currency() );
$value = $currency->to_money( $value );
return $value;
}
function clean_value_for_number_fields( $form ) {
foreach( $form['fields'] as $field ) {
$is_number_field = GFFormsModel::get_input_type( $field ) == 'number';
$has_gf_money_class = in_array( 'gf_money', explode( ' ', rgar( $field, 'cssClass' ) ) );
if( ! $is_number_field || ! $has_gf_money_class )
continue;
$value = $_POST["input_{$field['id']}"];
if( ! $value )
continue;
// save original value to be restored later
$this->_field_values[$field['id']] = $value;
require_once(GFCommon::get_base_path() . '/currency.php');
$currency = new RGCurrency(GFCommon::get_currency());
$_POST["input_{$field['id']}"] = $currency->to_number( $value );
}
return $form;
}
function restore_value_for_number_fields( $validation_result ) {
foreach( $validation_result['form']['fields'] as $field ) {
if( ! isset( $this->_field_values[$field['id']] ) )
continue;
$value = $this->_field_values[$field['id']];
// @REMOVE: since the original value will already be in the money format, no need to reformat here
// leaving in place for a few weeks to ensure no issues come up with the removal
// require_once(GFCommon::get_base_path() . '/currency.php');
// $currency = new RGCurrency(GFCommon::get_currency());
// $currency->to_money( $value );
$_POST["input_{$field['id']}"] = $value;
}
return $validation_result;
}
function enqueue_gravityforms_js() {
$has_proper_support = version_compare( GFCommon::$version, '1.8.dev4', '>=' );
$enqueue_script = $has_proper_support ? 'gform_gravityforms' : 'gforms_gravityforms';
if( ! wp_script_is( $enqueue_script ) )
wp_enqueue_script( $enqueue_script );
}
}
new GWFormatMoney();
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