spivurno
3/27/2017 - 12:21 AM
Gravity Perks // GP Limit Checkboxes // Conditional Limits
Gravity Perks // GP Limit Checkboxes // Conditional Limits
<?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 THIS SNIPPET MAY BE OUTDATED.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/gp-limit-checkboxes/gplcb-conditional-limits.php
*/
/**
* Gravity Wiz // Gravity Perks // GP Limit Checkboxes // Conditional Limits
*
* Provide conditional min/max for your checkbox fields.
*
* @version 0.4
* @author David Smith <david@gravitywiz.com>
* @license GPL-2.0+
* @link http://gravitywiz.com/...
*
* Plugin Name: GP Limit Checkboxes - Conditional Limits
* Plugin URI: http://gravitywiz.com/...
* Description: Provide conditional min/max for your checkbox fields.
* Author: Gravity Wiz
* Version: 0.4
* Author URI: http://gravitywiz.com
*/
class GPLC_Conditional_Limits {
protected static $is_script_output = false;
public function __construct( $args = array() ) {
// set our default arguments, parse against the provided arguments, and store for use throughout the class
$this->_args = wp_parse_args( $args, array(
'form_id' => false,
'field_id' => false
) );
// do version check in the init to make sure if GF is going to be loaded, it is already loaded
add_action( 'init', array( $this, 'init' ) );
}
public function init() {
// make sure we're running the required minimum version of Gravity Forms
if( ! property_exists( 'GFCommon', 'version' ) || ! version_compare( GFCommon::$version, '1.8', '>=' ) ) {
return;
}
add_filter( 'gform_pre_render', array( $this, 'add_trigger_class' ), 10, 2 );
add_filter( 'gform_pre_render', array( $this, 'load_form_script' ), 10, 2 );
add_filter( 'gform_enqueue_scripts', array( $this, 'enqueue_form_scripts' ) );
add_filter( 'gform_register_init_scripts', array( $this, 'add_init_script' ), 10, 2 );
add_filter( 'gplc_group', array( $this, 'handle_conditionals' ), 10, 2 );
}
public function add_trigger_class( $form ) {
foreach( $form['fields'] as &$field ) {
$field->cssClass .= ' gfield_trigger_change';
}
return $form;
}
public function enqueue_form_scripts( $form ) {
if( $this->is_applicable_form( $form ) ) {
wp_enqueue_script( 'gform_conditional_logic' );
}
}
public function load_form_script( $form, $is_ajax_enabled ) {
if( $this->is_applicable_form( $form ) && ! self::$is_script_output && ! $this->is_ajax_submission( $form['id'], $is_ajax_enabled ) ) {
$this->output_script();
}
return $form;
}
public function is_ajax_submission( $form_id, $is_ajax_enabled ) {
return isset( GFFormDisplay::$submission[ $form_id ] ) && $is_ajax_enabled;
}
public function output_script() {
?>
<script type="text/javascript">
( function( $ ) {
// Temporary solution until GF 2.3.
if( ! window['gf_form_conditional_logic'] ) {
window['gf_form_conditional_logic'] = [];
}
window.GPLCConditionalLimits = function( args ) {
var self = this;
// copy all args to current object: (list expected props)
for( prop in args ) {
if( args.hasOwnProperty( prop ) )
self[prop] = args[prop];
}
self.init = function() {
gform.addFilter( 'gplc_group', function( group, fieldId, $elem, gpLimitCheckboxes ) {
// Only evaluate for conditional logic triggered checkbox clicks.
// if( fieldId !== null ) {
// return group;
// }
if( $.inArray( self.fieldId, group.fields ) === -1 ) {
return group;
}
for( var i = 0; i < self.conditionals.length; i++ ) {
if( gf_get_field_action( self.formId, self.conditionals[ i ].conditionalLogic ) == 'show' ) {
if( group.max != self.conditionals[ i ].max ) {
group.max = self.conditionals[ i ].max;
// @todo uncheck all checkboxes
}
break;
}
}
return group;
} );
gform.addAction( 'gform_input_change', function( elem, formId, fieldId ) {
for( var i = 0; i < self.conditionals.length; i++ ) {
for( var j = 0; j < self.conditionals[ i ].conditionalLogic.rules.length; j++ ) {
var rule = self.conditionals[ i ].conditionalLogic.rules[ j ];
if( parseInt( rule.fieldId ) == parseInt( fieldId ) ) {
window.GPLimitCheckboxes.instances[ self.formId ].handleCheckboxClick();
}
}
}
} );
// force GPLimitCheckbox groups to be re-evaluated anytime conditional logic changes; this is a
// short term solution; long term we will need to listen for the specific inputs because we can't
// always assume the trigger field will be using Gravity Forms default conditional logic.
// $( document ).on( 'gform_post_conditional_logic', function( event, formId ) {
// if( self.formId == formId && window.GPLimitCheckboxes ) {
// window.GPLimitCheckboxes.instances[ self.formId ].handleCheckboxClick();
// }
// } );
};
self.init();
}
} )( jQuery );
</script>
<?php
self::$is_script_output = true;
}
public function add_init_script( $form ) {
if( ! $this->is_applicable_form( $form ) ) {
return;
}
$args = array(
'formId' => $this->_args['form_id'],
'fieldId' => $this->_args['field_id'],
'conditionals' => $this->_args['conditionals'],
);
$script = 'new GPLCConditionalLimits( ' . json_encode( $args ) . ' );';
$slug = implode( '_', array( __class__, $this->_args['form_id'], $this->_args['field_id'] ) );
GFFormDisplay::add_init_script( $this->_args['form_id'], $slug, GFFormDisplay::ON_PAGE_RENDER, $script );
}
public function handle_conditionals( $group, $form ) {
if( ! in_array( $this->_args['field_id'], $group['fields'] ) ) {
return $group;
}
foreach( $this->_args['conditionals'] as $conditional ) {
if( GFCommon::evaluate_conditional_logic( $conditional['conditionalLogic'], $form, GFFormsModel::get_current_lead() ) ) {
$group['min'] = $conditional['min'];
$group['max'] = $conditional['max'];
break;
}
}
return $group;
}
public function is_applicable_form( $form ) {
$form_id = isset( $form['id'] ) ? $form['id'] : $form;
return empty( $this->_args['form_id'] ) || $form_id == $this->_args['form_id'];
}
}
# Configuration
new GPLC_Conditional_Limits( array(
'form_id' => 1654,
'field_id' => 7,
'conditionals' => array(
array(
'min' => 2,
'max' => 2,
'conditionalLogic' => array(
'logicType' => 'all',
'actionType' => 'show',
'rules' => array(
array(
'fieldId' => 2,
'operator' => 'is',
'value' => 'MX250-2'
)
)
)
),
array(
'min' => 3,
'max' => 3,
'conditionalLogic' => array(
'logicType' => 'all',
'actionType' => 'show',
'rules' => array(
array(
'fieldId' => 2,
'operator' => 'is',
'value' => 'MX 250-3'
)
)
)
)
)
) );