Current File : /home/t/r/a/tradesc/www/relax/wp-content/plugins/wp-rocket/inc/Dependencies/Database/Schema.php
<?php
/**
* Base Custom Database Table Schema Class.
*
* @package Database
* @subpackage Schema
* @copyright Copyright (c) 2021
* @license https://opensource.org/licenses/MIT MIT
* @since 1.0.0
*/
namespace WP_Rocket\Dependencies\Database;
// Exit if accessed directly
defined( 'ABSPATH' ) || exit;
/**
* A base database table schema class, which houses the collection of columns
* that a table is made out of.
*
* This class is intended to be extended for each unique database table,
* including global tables for multisite, and users tables.
*
* @since 1.0.0
*/
class Schema extends Base {
/**
* Array of database column objects to turn into Column.
*
* @since 1.0.0
* @var array
*/
protected $columns = array();
/**
* Invoke new column objects based on array of column data.
*
* @since 1.0.0
*/
public function __construct() {
// Bail if no columns
if ( empty( $this->columns ) || ! is_array( $this->columns ) ) {
return;
}
// Juggle original columns array
$columns = $this->columns;
$this->columns = array();
// Loop through columns and create objects from them
foreach ( $columns as $column ) {
if ( is_array( $column ) ) {
$this->columns[] = new Column( $column );
} elseif ( $column instanceof Column ) {
$this->columns[] = $column;
}
}
}
/**
* Return the schema in string form.
*
* @since 1.0.0
*
* @return string Calls get_create_string() on every column.
*/
protected function to_string() {
// Default return value
$retval = '';
// Bail if no columns to convert
if ( empty( $this->columns ) ) {
return $retval;
}
// Loop through columns...
foreach ( $this->columns as $column_info ) {
if ( method_exists( $column_info, 'get_create_string' ) ) {
$retval .= '\n' . $column_info->get_create_string() . ', ';
}
}
// Return the string
return $retval;
}
}
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