89 lines
1.9 KiB
PHP
89 lines
1.9 KiB
PHP
<?php
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/**
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* Base Custom Database Table Schema Class.
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*
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* @package Database
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* @subpackage Schema
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* @copyright Copyright (c) 2020
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* @license https://opensource.org/licenses/gpl-2.0.php GNU Public License
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* @since 1.0.0
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*/
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namespace EDD\Database;
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// Exit if accessed directly
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defined( 'ABSPATH' ) || exit;
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/**
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* A base database table schema class, which houses the collection of columns
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* that a table is made out of.
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*
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* This class is intended to be extended for each unique database table,
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* including global tables for multisite, and users tables.
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*
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* @since 1.0.0
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*/
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class Schema extends Base {
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/**
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* Array of database column objects to turn into Column.
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*
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* @since 1.0.0
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* @var array
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*/
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protected $columns = array();
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/**
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* Invoke new column objects based on array of column data.
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*
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* @since 1.0.0
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*/
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public function __construct() {
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// Bail if no columns
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if ( empty( $this->columns ) || ! is_array( $this->columns ) ) {
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return;
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}
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// Juggle original columns array
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$columns = $this->columns;
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$this->columns = array();
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// Loop through columns and create objects from them
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foreach ( $columns as $column ) {
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if ( is_array( $column ) ) {
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$this->columns[] = new Column( $column );
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} elseif ( $column instanceof Column ) {
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$this->columns[] = $column;
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}
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}
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}
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/**
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* Return the schema in string form.
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*
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* @since 1.0.0
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*
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* @return string Calls get_create_string() on every column.
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*/
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protected function to_string() {
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// Default return value
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$retval = '';
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// Bail if no columns to convert
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if ( empty( $this->columns ) ) {
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return $retval;
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}
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// Loop through columns...
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foreach ( $this->columns as $column_info ) {
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if ( method_exists( $column_info, 'get_create_string' ) ) {
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$retval .= '\n' . $column_info->get_create_string() . ', ';
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}
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}
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// Return the string
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return $retval;
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}
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}
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