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<?php |
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namespace HM\BackUpWordPress; |
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/** |
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* A simple class for loading schedules |
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*/ |
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class Schedules { |
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/** |
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* An array of schedules |
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* |
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* @var mixed |
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* @access private |
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*/ |
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private $schedules; |
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/** |
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* |
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*/ |
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protected static $instance; |
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public static function get_instance() { |
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if ( ! ( self::$instance instanceof Schedules ) ) { |
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self::$instance = new Schedules(); |
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} |
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return self::$instance; |
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} |
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/** |
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* Load the schedules from wp_options and store in $this->schedules |
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* |
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*/ |
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private function __construct() { |
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$this->refresh_schedules(); |
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} |
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public function refresh_schedules() { |
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$schedules = get_transient( 'hmbkp_schedules' ); |
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if ( ! $schedules ) { |
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global $wpdb; |
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// Load all schedule options from the database. |
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$schedules = $wpdb->get_col( "SELECT option_name from $wpdb->options WHERE option_name LIKE 'hmbkp\_schedule\_%'" ); |
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set_transient( 'hmbkp_schedules', $schedules, WEEK_IN_SECONDS ); |
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} |
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// Instantiate each one as a Scheduled_Backup |
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$this->schedules = array_map( array( $this, 'instantiate' ), array_filter( (array) $schedules ) ); |
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} |
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/** |
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* Get an array of schedules |
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* |
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* @return Scheduled_Backup[] |
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*/ |
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public function get_schedules() { |
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return $this->schedules; |
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} |
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/** |
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* Get a schedule by ID |
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* |
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* @param $id |
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* @return Scheduled_Backup |
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*/ |
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public function get_schedule( $id ) { |
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foreach ( $this->schedules as $schedule ) { |
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if ( $schedule->get_id() == $id ) { |
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return $schedule; |
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} |
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} |
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return null; |
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} |
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/** |
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* Instantiate the individual scheduled backup objects |
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* |
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* @access private |
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* @param string $id |
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* @return Scheduled_Backup |
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*/ |
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private function instantiate( $id ) { |
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return new Scheduled_Backup( str_replace( 'hmbkp_schedule_', '', $id ) ); |
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} |
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} |
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Instead of relying on
global
state, we recommend one of these alternatives:1. Pass all data via parameters
2. Create a class that maintains your state