gravity_form_acf_field.php

/**
 * Add gravity forms to acf gravityform select field
 *
 * @param array $field field data.
 *
 * @return mixed
 */
function acf_load_color_field_choices( $field ) {

	// Reset choices.
	$field['choices'] = array();


	// Add gravity form to choices.
	if ( class_exists( 'RGFormsModel' ) ) {
		$forms = RGFormsModel::get_forms( null, 'title' );
		foreach ( $forms as $index => $form ) {
			if( ! $index ){
				$field['choices'][ 'none' ] = 'None';
			}
			$field['choices'][ $form->id ] = $form->title;
		}
	}


	// Return the field.
	return $field;

}
add_filter( 'acf/load_field/name=gravity_form', 'acf_load_color_field_choices' );