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<?php if ( ! defined( 'ABSPATH' ) ) exit;
/**
* Class NF_Abstracts_RequiredUpdate
*/
abstract class NF_Abstracts_RequiredUpdate
{
protected $_slug = '';
protected $_requires = array();
protected $_class_name = '';
protected $db;
public $response = array();
public $debug = false;
public $lock_process = false;
/**
* Constructor
*
* @since 3.4.0
*/
public function __construct( $data = array() )
{
// Save a reference to wpdb.
global $wpdb;
$this->db = $wpdb;
//Bail if we aren't in the admin.
if ( ! is_admin() ) return false;
// If we weren't provided with a slug or a class name...
if ( ! isset( $data[ 'slug' ] ) || ! isset( $data[ 'class_name' ] ) ) {
// Bail.
return false;
}
$this->_slug = $data[ 'slug' ];
$this->_class_name = $data[ 'class_name' ];
// Record debug settings if provided.
if ( isset( $data[ 'debug' ] ) ) $this->debug = $data[ 'debug' ];
}
/**
* Function to loop over the batch.
*
* @since 3.4.0
*/
public function process()
{
/**
* This function intentionlly left empty.
*/
}
/**
* Function to run any setup steps necessary to begin processing.
*
* @since 3.4.0
*/
public function startup()
{
/**
* This function intentionally left empty.
*/
}
/**
* Function to cleanup any lingering temporary elements of required updates after completion.
*
* @since 3.4.0
*/
public function cleanup()
{
// Delete our required updates data.
delete_option( 'ninja_forms_doing_required_updates' );
// Flag that updates are done.
update_option( 'ninja_forms_needs_updates', 0 );
// Set our new db version.
update_option( 'ninja_forms_db_version', Ninja_Forms::DB_VERSION );
// Fetch our list of completed updates.
$updates = get_option( 'ninja_forms_required_updates', array() );
// If we got something back...
if ( ! empty( $updates ) ) {
// Send out a call to telemetry.
Ninja_Forms()->dispatcher()->send( 'required_updates_complete', $updates );
}
// Output that we're done.
$this->response[ 'updatesRemaining' ] = 0;
$this->respond();
}
/**
* Function to dump our JSON response and kill processing.
*
* @since 3.4.0
*/
public function respond()
{
// Dump the response.
echo( json_encode( $this->response ) );
// Terminate processing.
die();
}
/**
* Function to run our table migrations.
*
* @param $callback (String) The callback function in the migration file.
*
* @since 3.4.0
*/
protected function migrate( $callback )
{
$migrations = new NF_Database_Migrations();
$migrations->do_upgrade( $callback );
}
/**
* Function to prepare our query values for insert.
*
* @param $value (Mixed) The value to be escaped for SQL.
* @return (String) The escaped (and possibly serialized) value of the string.
*
* @since 3.4.0
*/
public function prepare( $value )
{
// If our value is a number...
if ( is_float( $value ) ) {
// Exit early and return the value.
return $value;
}
// Serialize the value if necessary.
$escaped = maybe_serialize( $value );
// Escape it.
$escaped = $this->db->_real_escape( $escaped );
return $escaped;
}
/**
* Function used to call queries that are gated by debug.
*
* @param $sql (String) The query to be run.
* @return (Object) The response to the wpdb query call.
*
* @since 3.4.0
*/
protected function query( $sql )
{
// If we're not debugging...
if ( ! $this->debug ) {
// Run the query.
return $this->db->query( $sql );
} // Otherwise...
// Append the query to the response object.
$this->response[ 'queries' ][] = $sql;
// Return false.
return false;
}
/**
* Function to record the completion of our update in the DB.
*
* @since 3.4.0
*/
protected function confirm_complete()
{
// If we're not debugging...
if ( ! $this->debug ) {
// Fetch our required updates array.
$updates = get_option( 'ninja_forms_required_updates', array() );
// Get a timestamp.
date_default_timezone_set( 'UTC' );
$now = date( "Y-m-d H:i:s" );
// Append the current update to the array.
$updates[ $this->_slug ] = $now;
// Save it.
update_option( 'ninja_forms_required_updates', $updates );
}
}
/**
* Enable Maintenance mode
* Enables maintenance mode so the form will not render on the front end while updates are running.
*
* @since 3.4.0
*
* @param $prefix - the db prefix.
* @param $form_id - The id of the form.
*/
public function enable_maintenance_mode( $prefix, $form_id )
{
// Change maintenance column value to 1, run the query and then return.
$sql = $this->db->prepare( 'UPDATE `' . $prefix . 'nf3_upgrades` SET `maintenance` = 1 WHERE `id` = %d', $form_id );
$this->db->query( $sql );
return;
}
/**
* Disable Maintenance Mode
* Disables maintenance mode, so the form will be displayed on the front end..
*
* @since 3.4.0
*
* @param $prefix - the db prefix.
* @param $form_id - The id of the form.
*/
public function disable_maintenance_mode( $prefix, $form_id )
{
// Change maintenance column value to 0, run the query and then return.
$sql = $this->db->prepare( 'UPDATE `' . $prefix . 'nf3_upgrades` SET `maintenance` = 0 WHERE `id` = %d', $form_id );
$this->db->query( $sql );
return;
}
}