1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
<?php
/*
* $Id: PreOrderIterator.php 4364 2008-05-13 21:20:34Z romanb $
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* Doctrine_Node_NestedSet_PreOrderIterator
*
* @package Doctrine
* @subpackage Node
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @link www.phpdoctrine.org
* @since 1.0
* @version $Revision: 4364 $
* @author Joe Simms <joe.simms@websites4.com>
*/
class Doctrine_Node_NestedSet_PreOrderIterator implements Iterator
{
/**
* @var Doctrine_Collection $collection
*/
protected $collection;
/**
* @var array $keys
*/
protected $keys;
/**
* @var mixed $key
*/
protected $key;
/**
* @var integer $index
*/
protected $index;
/**
* @var integer $index
*/
protected $prevIndex;
/**
* @var integer $index
*/
protected $traverseLevel;
/**
* @var integer $count
*/
protected $count;
public function __construct($record, $opts)
{
$componentName = $record->getTable()->getComponentName();
$q = $record->getTable()->createQuery();
$params = array($record->get('lft'), $record->get('rgt'));
if (isset($opts['include_record']) && $opts['include_record']) {
$query = $q->where("$componentName.lft >= ? AND $componentName.rgt <= ?", $params)->orderBy("$componentName.lft asc");
} else {
$query = $q->where("$componentName.lft > ? AND $componentName.rgt < ?", $params)->orderBy("$componentName.lft asc");
}
$query = $record->getTable()->getTree()->returnQueryWithRootId($query, $record->getNode()->getRootValue());
$this->maxLevel = isset($opts['depth']) ? ($opts['depth'] + $record->getNode()->getLevel()) : 0;
$this->options = $opts;
$this->collection = isset($opts['collection']) ? $opts['collection'] : $query->execute();
$this->keys = $this->collection->getKeys();
$this->count = $this->collection->count();
$this->index = -1;
$this->level = $record->getNode()->getLevel();
$this->prevLeft = $record->getNode()->getLeftValue();
// clear the table identity cache
$record->getTable()->clear();
}
/**
* rewinds the iterator
*
* @return void
*/
public function rewind()
{
$this->index = -1;
$this->key = null;
}
/**
* returns the current key
*
* @return integer
*/
public function key()
{
return $this->key;
}
/**
* returns the current record
*
* @return Doctrine_Entity
*/
public function current()
{
$record = $this->collection->get($this->key);
$record->getNode()->setLevel($this->level);
return $record;
}
/**
* advances the internal pointer
*
* @return void
*/
public function next()
{
while ($current = $this->advanceIndex()) {
if ($this->maxLevel && ($this->level > $this->maxLevel)) {
continue;
}
return $current;
}
return false;
}
/**
* @return boolean whether or not the iteration will continue
*/
public function valid()
{
return ($this->index < $this->count);
}
public function count()
{
return $this->count;
}
private function updateLevel()
{
if ( ! (isset($this->options['include_record']) && $this->options['include_record'] && $this->index == 0)) {
$left = $this->collection->get($this->key)->getNode()->getLeftValue();
$this->level += $this->prevLeft - $left + 2;
$this->prevLeft = $left;
}
}
private function advanceIndex()
{
$this->index++;
$i = $this->index;
if (isset($this->keys[$i])) {
$this->key = $this->keys[$i];
$this->updateLevel();
return $this->current();
}
return false;
}
}