home *** CD-ROM | disk | FTP | other *** search
- <?php
- /* vim: set expandtab sw=4 ts=4 sts=4: */
- /**
- * hold the PMA_List base class
- *
- * @version $Id: List.class.php 10786 2007-10-14 12:23:22Z lem9 $
- */
-
- /**
- * @todo add caching
- * @since phpMyAdmin 2.9.10
- * @abstract
- */
- /* abstract public */ class PMA_List
- {
- /**
- * @var array the list items
- * @access public
- */
- var $items = array();
-
- /**
- * @var array details for list items
- * @access public
- */
- var $details = array();
-
- /**
- * @var bool whether we need to re-index the database list for consistency keys
- * @access protected
- */
- var $_need_to_reindex = false;
-
- /**
- * @var mixed empty item
- */
- var $item_empty = '';
-
- /**
- * returns first item from list
- *
- * @uses PMA_List::$items to get first item
- * @uses reset() to retrive first item from PMA_List::$items array
- * @return string value of first item
- */
- function getFirst()
- {
- return reset($this->items);
- }
-
- /**
- * returns item only if there is only one in the list
- *
- * @uses PMA_List::count() to decide what to return
- * @uses PMA_List::getFirst() to return it
- * @uses PMA_List::getEmpty() to return it
- * @return single item
- */
- function getSingleItem()
- {
- if ($this->count() === 1) {
- return $this->getFirst();
- }
-
- return $this->getEmpty();
- }
-
- /**
- * returns list item count
- *
- * @uses PMA_List::$items to count it items
- * @uses count() to count items in PMA_List::$items
- * @return integer PMA_List::$items count
- */
- function count()
- {
- return count($this->items);
- }
-
- /**
- * defines what is an empty item (0, '', false or null)
- *
- * @uses PMA_List::$item_empty as return value
- * @return mixed an empty item
- */
- function getEmpty()
- {
- return $this->item_empty;
- }
-
- /**
- * checks if the given db names exists in the current list, if there is
- * missing at least one item it reutrns false other wise true
- *
- * @uses PMA_List::$items to check for existence of specific item
- * @uses func_get_args()
- * @uses in_array() to check if given arguments exists in PMA_List::$items
- * @param string $db_name,.. one or more mysql result resources
- * @return boolean true if all items exists, otheriwse false
- */
- function exists()
- {
- foreach (func_get_args() as $result) {
- if (! in_array($result, $this->items)) {
- return false;
- }
- }
-
- return true;
- }
-
- /**
- * returns HTML <option>-tags to be used inside <select></select>
- *
- * @uses PMA_List::$items to build up the option items
- * @uses PMA_List::getDefault() to mark this as selected if requested
- * @uses htmlspecialchars() to escape items
- * @param mixed $selected the selected db or true for selecting current db
- * @param boolean $include_information_schema
- * @return string HTML option tags
- */
- function getHtmlOptions($selected = '', $include_information_schema = true)
- {
- if (true === $selected) {
- $selected = $this->getDefault();
- }
-
- $options = '';
- foreach ($this->items as $each_db) {
- if (false === $include_information_schema && 'information_schema' === $each_db) {
- continue;
- }
- $options .= '<option value="' . htmlspecialchars($each_db) . '"';
- if ($selected === $each_db) {
- $options .= ' selected="selected"';
- }
- $options .= '>' . htmlspecialchars($each_db) . '</option>' . "\n";
- }
-
- return $options;
- }
-
- /**
- * returns default item
- *
- * @uses PMA_List::getEmpty() as fallback
- * @return string default item
- */
- function getDefault()
- {
- return $this->getEmpty();
- }
-
- /**
- * builds up the list
- *
- * @abstract
- */
- /* abstract public */ function build() {}
- }
- ?>
-