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Itemization.php
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Itemization.php
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<?php
namespace RESTful;
class Itemization implements \IteratorAggregate, \ArrayAccess
{
public $resource,
$uri;
protected $_page,
$_offset = 0,
$_size = 25;
public function __construct($resource, $uri, $data = null)
{
$this->resource = $resource;
$this->uri = $uri;
if ($data != null) {
$this->_page = new Page($resource, $uri, $data);
} else {
$this->_page = null;
}
}
protected function _getPage($offset = null)
{
if ($this->_page == null) {
$this->_offset = ($offset == null) ? 0 : $offset * $this->_size;
$uri = $this->_buildUri();
$this->_page = new Page($this->resource, $uri);
} elseif ($offset != null) {
$offset = $offset * $this->_size;
if ($offset != $this->_offset) {
$this->_offset = $offset;
$uri = $this->_buildUri();
$this->_page = new Page($this->resource, $uri);
}
}
return $this->_page;
}
protected function _getItem($offset)
{
$page_offset = floor($offset / $this->_size);
$page = $this->_getPage($page_offset);
return $page->items[$offset - $page->offset];
}
public function total()
{
return $this->_getPage()->total;
}
protected function _buildUri($offset = null)
{
# TODO: hacky but works for now
$offset = ($offset == null) ? $this->_offset : $offset;
if (strpos($this->uri, '?') === false) {
$uri = $this->uri . '?';
} else {
$uri = $this->uri . '&';
}
$uri = $uri . 'offset=' . strval($offset);
return $uri;
}
// IteratorAggregate
public function getIterator()
{
$uri = $this->_buildUri($offset = 0);
$uri = $this->_buildUri($offset = 0);
return new ItemizationIterator($this->resource, $uri);
}
// ArrayAccess
public function offsetSet($offset, $value)
{
throw new \BadMethodCallException(get_class($this) . ' array access is read-only');
}
public function offsetExists($offset)
{
return (0 <= $offset && $offset < $this->total());
}
public function offsetUnset($offset)
{
throw new \BadMethodCallException(get_class($this) . ' array access is read-only');
}
public function offsetGet($offset)
{
return $this->_getItem($offset);
}
}

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text/x-php
Expires
Mon, May 5, 8:46 AM (2 d)
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Storage Handle
70899
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Itemization.php (2 KB)

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