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<?php /** * Background Upgrader * * Uses https://github.com/A5hleyRich/wp-background-processing to handle DB * updates in the background. * * @class GF_Background_Upgrader * @version 2.3 * @category Class * @author Rocketgenius */ if ( ! defined( 'ABSPATH' ) ) { exit; } require_once( 'libraries/wp-async-request.php' ); require_once( 'libraries/gf-background-process.php' ); /** * GF_Background_Upgrader Class. */ class GF_Background_Upgrader extends GF_Background_Process { /** * @var string */ protected $action = 'gf_upgrader'; /** * Returns the data for the background upgrader. * * @since 2.3 * * @return array */ public function get_data() { return $this->data; } /** * Is the queue empty for all blogs? * * @since 2.3 * * @return bool */ public function is_queue_empty() { return parent::is_queue_empty(); } /** * Is the updater running? * @return boolean */ public function is_updating() { return false === $this->is_queue_empty(); } /** * Task * * Override this method to perform any actions required on each * queue item. Return the modified item for further processing * in the next pass through. Or, return false to remove the * item from the queue. * * @param string $callback Update callback function * @return mixed */ protected function task( $callback ) { if ( ! defined( 'GF_UPGRADING' ) ) { define( 'GF_UPGRADING', true ); } if ( is_callable( $callback ) ) { remove_filter( 'query', array( 'GFForms', 'filter_query' ) ); GFCommon::log_debug( sprintf( '%s(): Running callback: %s', __METHOD__, print_r( $callback, 1 ) ) ); $needs_more_time = call_user_func( $callback ); if ( $needs_more_time ) { GFCommon::log_debug( sprintf( '%s(): Callback needs another run: %s', __METHOD__, print_r( $callback, 1 ) ) ); return $callback; } else { GFCommon::log_debug( sprintf( '%s(): Finished callback: %s', __METHOD__, print_r( $callback, 1 ) ) ); } } else { GFCommon::log_debug( sprintf( '%s(): Could not find callback: %s', __METHOD__, print_r( $callback, 1 ) ) ); } return false; } /** * Complete * * Override if applicable, but ensure that the below actions are * performed, or, call parent::complete(). */ protected function complete() { parent::complete(); } }