<?php /** * Zend Framework (http://framework.zend.com/) * * @link http://github.com/zendframework/zf2 for the canonical source repository * @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ namespace Zend\Db\Sql\Ddl\Index; class Index extends AbstractIndex { /** * @var string */ protected $specification = 'INDEX %s(...)'; /** * @var array */ protected $lengths; /** * @param string|array|null $columns * @param null|string $name * @param array $lengths */ public function __construct($columns, $name = null, array $lengths = []) { $this->setColumns($columns); $this->name = null === $name ? null : (string) $name; $this->lengths = $lengths; } /** * * @return array of array|string should return an array in the format: * * array ( * // a sprintf formatted string * string $specification, * * // the values for the above sprintf formatted string * array $values, * * // an array of equal length of the $values array, with either TYPE_IDENTIFIER or TYPE_VALUE for each value * array $types, * ) * */ public function getExpressionData() { $colCount = count($this->columns); $values = []; $values[] = $this->name ?: ''; $newSpecTypes = [self::TYPE_IDENTIFIER]; $newSpecParts = []; for ($i = 0; $i < $colCount; $i++) { $specPart = '%s'; if (isset($this->lengths[$i])) { $specPart .= "({$this->lengths[$i]})"; } $newSpecParts[] = $specPart; $newSpecTypes[] = self::TYPE_IDENTIFIER; } $newSpec = str_replace('...', implode(', ', $newSpecParts), $this->specification); return [[ $newSpec, array_merge($values, $this->columns), $newSpecTypes, ]]; } }