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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* hold the ListAbstract base class
*
* @package PhpMyAdmin
*/
namespace PMA\libraries;
use ArrayObject;
/**
* Generic list class
*
* @todo add caching
* @abstract
* @package PhpMyAdmin
* @since phpMyAdmin 2.9.10
*/
abstract class ListAbstract extends ArrayObject
{
/**
* @var mixed empty item
*/
protected $item_empty = '';
/**
* ListAbstract constructor
*
* @param array $array The input parameter accepts an array or an
* Object.
* @param int $flags Flags to control the behaviour of the
* ArrayObject object.
* @param string $iterator_class Specify the class that will be used for
* iteration of the ArrayObject object.
* ArrayIterator is the default class used.
*/
public function __construct(
$array = array(), $flags = 0, $iterator_class = "ArrayIterator"
) {
parent::__construct($array, $flags, $iterator_class);
}
/**
* defines what is an empty item (0, '', false or null)
*
* @return mixed an empty item
*/
public function getEmpty()
{
return $this->item_empty;
}
/**
* checks if the given db names exists in the current list, if there is
* missing at least one item it returns false otherwise true
*
* @return boolean true if all items exists, otherwise false
*/
public function exists()
{
$this_elements = $this->getArrayCopy();
foreach (func_get_args() as $result) {
if (! in_array($result, $this_elements)) {
return false;
}
}
return true;
}
/**
* returns HTML <option>-tags to be used inside <select></select>
*
* @param mixed $selected the selected db or true for
* selecting current db
* @param boolean $include_information_schema whether include information schema
*
* @return string HTML option tags
*/
public function getHtmlOptions(
$selected = '', $include_information_schema = true
) {
if (true === $selected) {
$selected = $this->getDefault();
}
$options = '';
foreach ($this as $each_item) {
if (false === $include_information_schema
&& $GLOBALS['dbi']->isSystemSchema($each_item)
) {
continue;
}
$options .= '<option value="' . htmlspecialchars($each_item) . '"';
if ($selected === $each_item) {
$options .= ' selected="selected"';
}
$options .= '>' . htmlspecialchars($each_item) . '</option>' . "\n";
}
return $options;
}
/**
* returns default item
*
* @return string default item
*/
public function getDefault()
{
return $this->getEmpty();
}
/**
* builds up the list
*
* @return void
*/
abstract public function build();
}