medicalalert-web-reloaded/wp/wp-content/plugins/acf-gravityforms-add-on/resources/FieldForV4.php

<?php

namespace ACFGravityformsField;

use acf_field;
use GFFormsModel;

class FieldForV4 extends acf_field
{
	/**
	 * will hold info such as dir / path
	 *
	 * @var $settings
	 */
	public $settings;

	/**
	 * will hold default field options
	 *
	 * @var array
	 */
	public $defaults;

	/**
	 * Make sure we can easily access our notices
	 *
	 * @var Notices
	 */
	public $notices;

	/**
	 * Get our forms
	 *
	 * @var array
	 */
	public $forms;

	public function __construct()
	{
		$this->name = 'forms';
		$this->label = __('Gravity Form', 'gravityforms');
		$this->category = __('Relational', 'acf'); // Basic, Content, Choice, etc
		$this->defaults = [
			'return_format' => 'form_object',
			'multiple'      => 0,
			'allow_null'    => 0
		];

		// Get our notices up and running
		$this->notices = new Notices();

		// Execute the parent constructor as well
		parent::__construct();
	}

	/**
	 * Create extra settings for our gravityforms field. These are visible when editing a field.
	 *
	 * @param $field
	 */
	public function create_options($field)
	{
		// defaults?
		$field = array_merge($this->defaults, $field);

		// key is needed in the field names to correctly save the data
		$key = $field['name'];

		// Create Field Options HTML
?>
		<tr class="field_option field_option_<?php echo $this->name; ?>">
			<td class="label">
				<label><?php echo __('Return Value', 'acf'); ?></label>
			</td>
			<td>
				<?php
				do_action('acf/create_field', [
					'type'    => 'radio',
					'name'    => 'fields[' . $key . '][return_format]',
					'value'   => $field['return_format'],
					'choices' => [
						'post_object' => __('Form Object', 'acf-gravityforms-add-on'),
						'id' => __('Form ID', 'acf-gravityforms-add-on')
					],
					'layout'  => 'horizontal',
				]); ?>
			</td>
		</tr>

		<tr class="field_option field_option_<?php echo $this->name; ?>">
			<td class="label">
				<label><?php echo __('Allow Null?', 'acf'); ?></label>
			</td>
			<td>
				<?php
				do_action('acf/create_field', [
					'type'    => 'radio',
					'name'    => 'fields[' . $key . '][allow_null]',
					'value'   => $field['allow_null'],
					'choices' => [
						1 => __('Yes', 'acf'),
						0 => __('No', 'acf'),
					],
					'layout'  => 'horizontal',
				]); ?>
			</td>
		</tr>

		<tr class="field_option field_option_<?php echo $this->name; ?>">
			<td class="label">
				<label><?php echo __('Select multiple values?', 'acf'); ?></label>
			</td>
			<td>
				<?php
				do_action('acf/create_field', [
					'type'    => 'radio',
					'name'    => 'fields[' . $key . '][multiple]',
					'value'   => $field['multiple'],
					'choices' => [
						1 => __('Yes', 'acf'),
						0 => __('No', 'acf'),
					],
					'layout'  => 'horizontal',
				]); ?>
			</td>
		</tr>
<?php
	}

	/**
	 * Render our Gravity Form field with all the forms as options
	 *
	 * @param $field
	 * @return bool
	 */
	public function create_field($field)
	{

		if (class_exists('GFFormsModel')) {
			$this->forms = GFFormsModel::get_forms(true, false, 'title');
		}

		// Set our defaults
		$field = array_merge($this->defaults, $field);
		$choices = [];

		// Check if we have some valid forms
		$fieldObject = new Field();
		if (!$fieldObject->hasValidForms()) {
			return false;
		}

		foreach ($this->forms as $form) {
			$choices[$form->id] = $form->title;
		}

		// Override field settings and start rendering
		$field['choices'] = $choices;
		$field['type'] = 'select';

		do_action('acf/create_field', $field);
	}

	/**
	 *  This filter is applied to the $value before it is updated in the db
	 *
	 *  @param  $value - the value which will be saved in the database
	 *  @param  $post_id - the $post_id of which the value will be saved
	 *  @param  $field - the field array holding all the field options
	 *
	 *  @return $value - the modified value
	 */
	public function update_value($value, $post_id, $field)
	{
		// Strip empty array values
		if (is_array($value)) {
			$value = array_values(array_filter($value));
		}

		return $value;
	}


	/**
	 * Return a form object when not empty
	 *
	 * @param $value
	 * @param $postId
	 * @param $field
	 * @return array|bool
	 */
	public function format_value_for_api($value, $postId, $field)
	{
		$fieldObject = new Field();
		return $fieldObject->processValue($value, $field);
	}
}