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126 lines
2.3 KiB
PHP
Executable File
126 lines
2.3 KiB
PHP
Executable File
--TEST--
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sqlite-spl: Iteration
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--SKIPIF--
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<?php # vim:ft=php
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if (!extension_loaded("sqlite")) print "skip";
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if (!extension_loaded("spl")) print "skip SPL is not present";
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?>
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--FILE--
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<?php
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include "blankdb_oo.inc";
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$db->query("CREATE TABLE menu(id_l int PRIMARY KEY, id_r int UNIQUE, key VARCHAR(10))");
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$db->query("INSERT INTO menu VALUES( 1, 12, 'A')");
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$db->query("INSERT INTO menu VALUES( 2, 9, 'B')");
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$db->query("INSERT INTO menu VALUES(10, 11, 'F')");
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$db->query("INSERT INTO menu VALUES( 3, 6, 'C')");
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$db->query("INSERT INTO menu VALUES( 7, 8, 'E')");
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$db->query("INSERT INTO menu VALUES( 4, 5, 'D')");
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class SqliteNestedsetElement
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{
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protected $id_l;
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protected $id_r;
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protected $key;
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function __construct($db)
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{
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$this->db = $db;
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}
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function getLeft()
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{
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return $this->id_l;
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}
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function getRight()
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{
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return $this->id_r;
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}
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function __toString()
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{
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return $this->key;
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}
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function key()
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{
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return $this->key;
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}
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}
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class SqliteNestedset implements RecursiveIterator
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{
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protected $id;
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protected $id_l;
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protected $id_r;
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protected $entry;
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function __construct($db, $id_l = 1)
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{
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$this->db = $db;
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$this->id_l = $id_l;
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$this->id_r = $this->db->singleQuery('SELECT id_r FROM menu WHERE id_l='.$id_l, 1);
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$this->id = $id_l;
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}
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function rewind()
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{
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$this->id = $this->id_l;
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$this->fetch();
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}
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function valid()
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{
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return is_object($this->entry);
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}
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function current()
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{
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return $this->entry->__toString();
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}
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function key()
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{
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return $this->entry->key();;
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}
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function next()
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{
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$this->id = $this->entry->getRight() + 1;
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$this->fetch();
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}
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protected function fetch()
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{
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$res = $this->db->unbufferedQuery('SELECT * FROM menu WHERE id_l='.$this->id);
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$this->entry = $res->fetchObject('SqliteNestedsetElement', array(&$this->db));
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unset($res);
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}
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function hasChildren()
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{
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return $this->entry->getLeft() + 1 < $this->entry->getRight();
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}
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function getChildren()
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{
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return new SqliteNestedset($this->db, $this->entry->getLeft() + 1, $this->entry->getRight() - 1);
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}
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}
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$menu_iterator = new RecursiveIteratorIterator(new SqliteNestedset($db), RecursiveIteratorIterator::SELF_FIRST);
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foreach($menu_iterator as $entry) {
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echo $menu_iterator->getDepth() . $entry . "\n";
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}
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?>
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===DONE===
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--EXPECT--
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0A
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1B
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2C
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3D
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2E
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1F
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===DONE===
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