Gravity Perks // Limit Choices // Shared Limits Field

gp-limit-choices-shared-limits-field.php

<?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 THIS SNIPPET MAY BE OUTDATED.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-choices/gplc-shared-choices.php
 */
/**
 * Gravity Perks // Limit Choices // Shared Limits Field
 *
 * Share limits across choices of the same field.
 *
 * @version  1.0
 * @author   David Smith <david@gravitywiz.com>
 * @license  GPL-2.0+
 * @link     http://gravitywiz.com/documentation/gravity-forms-limit-choices/
 *
 * Plugin Name:  GP Limit Choices — Shared Limits Field
 * Plugin URI:   http://gravitywiz.com/documentation/gravity-forms-limit-choices/
 * Description:  Share limits across choices of the same field.
 * Author:       Gravity Wiz
 * Version:      1.0
 * Author URI:   http://gravitywiz.com
 */
class GPLC_Shared_Limits_Field {

	public $_args = array();

	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() {

		add_filter( 'gplc_choice_counts', array( $this, 'modify_gplc_choice_counts' ), 10, 3 );

	}

	public function is_applicable_field( $field ) {
		$form_id = isset( $field->formId ) ? $field->formId : null;

		return $form_id == $this->_args['form_id'] && isset($field->id) && $field->id == $this->_args['field_id'];
	}

	public function modify_gplc_choice_counts( $counts, $form_id, $field )
	{
		if( ! $this->is_applicable_field( $field ) ) {
			return $counts;
		}

		$shared_count = 0;

		if (is_array($counts)) {
			foreach ($counts as $count) {
				$shared_count += $count;
			}
		}

		if (is_array($field->choices)) {
			foreach ($field->choices as $choice) {
				if (isset($choice['limit']) && isset($choice['value'])) {
					$counts[$choice['value']] = $shared_count;
				}
			}
		}

		return $counts;
	}
}

# Configuration

new GPLC_Shared_Limits_Field( array(
	'form_id' => 916,
	'field_id' => 1
) );

👉 This Gist has been migrated to the Gravity Wiz Snippet Library:

https://github.com/gravitywiz/snippet-library/blob/master/gp-limit-choices/gplc-shared-choices.php