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fixed propfind_iterator sometimes not returning any item

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Ralf Becker 2010-03-03 08:18:48 +00:00
parent 31be31954e
commit 671a0293ef
1 changed files with 25 additions and 5 deletions
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30
phpgwapi/inc/class.groupdav_handler.inc.php
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@ -390,6 +390,13 @@ class groupdav_propfind_iterator implements Iterator
*/
const CHUNK_SIZE = 500;
/**
* Log calls via error_log()
*
* @var boolean
*/
public $debug = false;
/**
* Constructor
*
@ -399,6 +406,8 @@ class groupdav_propfind_iterator implements Iterator
*/
public function __construct(groupdav_handler $handler,array $filter,array &$files=null)
{
if ($this->debug) error_log(__METHOD__."(,".array2string($filter).",)");
$this->handler = $handler;
$this->filter = $filter;
$this->files = $files;
@ -412,6 +421,8 @@ class groupdav_propfind_iterator implements Iterator
*/
public function current()
{
if ($this->debug) error_log(__METHOD__."() returning ".array2string(current($this->files)));
return current($this->files);
}
@ -424,6 +435,7 @@ class groupdav_propfind_iterator implements Iterator
{
$current = $this->current();
if ($this->debug) error_log(__METHOD__."() returning ".array2string($current['path']));
return $current['path']; // we return path as key
}
@ -434,10 +446,14 @@ class groupdav_propfind_iterator implements Iterator
{
if (next($this->files) !== false)
{
if ($this->debug) error_log(__METHOD__."() returning TRUE");
return true;
}
if (!$this->handler)
if (is_array($this->files) && count($this->files) < self::CHUNK_SIZE) // less entries then asked --> no further available
{
if ($this->debug) error_log(__METHOD__."() returning FALSE (no more entries)");
return false; // no further entries
}
// try query further files via propfind callback of handler and store result in $this->files
@ -445,10 +461,7 @@ class groupdav_propfind_iterator implements Iterator
$this->start += self::CHUNK_SIZE;
reset($this->files);
if (count($this->files) < self::CHUNK_SIZE) // less entries then asked --> no further available
{
unset($this->handler);
}
if ($this->debug) error_log(__METHOD__."() returning ".array2string(current($this->files) !== false));
return current($this->files) !== false;
}
@ -457,7 +470,13 @@ class groupdav_propfind_iterator implements Iterator
*/
public function rewind()
{
if ($this->debug) error_log(__METHOD__."()");
// query first set of files via propfind callback of handler and store result in $this->files
$this->start = 0;
$this->files = $this->handler->propfind_callback($this->filter,array($this->start,self::CHUNK_SIZE));
$this->start += self::CHUNK_SIZE;
reset($this->files);
}
/**
@ -467,6 +486,7 @@ class groupdav_propfind_iterator implements Iterator
*/
public function valid ()
{
if ($this->debug) error_log(__METHOD__."() returning ".array2string(current($this->files) !== false));
return current($this->files) !== false;
}
}