/**
* This private method is used by the usort function in the
* orderSentWork and orderReceivedWork methods.
* It compares 2 work-objects by 1 of the properties of that object, dictated by the
* private property _orderBy
*
* @param unknown_type $a
* @param unknown_type $b
* @return -1, 0 or 1 dependent of the result of the comparison.
*/
function _cmpWork($a, $b)
{
$sort = $this->_orderBy;
$aval = $a->{$sort};
$bval = $b->{$sort};
if ($sort == 'recipients') {
// The recipients property is an array so we do the comparison based on the first item of the recipients array
$aval = $aval[0]['name'];
$bval = $bval[0]['name'];
}
if ($sort == 'filesize') {
// Filesize is not a string, so we use other comparison technique
return $aval < $bval ? -1 : 1;
} elseif ($sort == 'title') {
// Natural order for sorting titles is more "human-friendly"
return api_strnatcmp($aval, $bval);
} else {
return api_strcasecmp($aval, $bval);
}
}
public function sort_by_id($item1, $item2)
{
return api_strnatcmp($item1->get_id(), $item2->get_id());
}
/**
* @param $item1
* @param $item2
* @return int
*/
function sort_by_name($item1, $item2)
{
return api_strnatcmp($item1->get_name(), $item2->get_name());
}
/**
* Performs string comparison in so called "natural order", case insensitive, language sensitive, with extended multibyte support.
* @param string $string1 The first string.
* @param string $string2 The second string.
* @param string $language (optional) The language in which comparison is to be made. If language is omitted, interface language is assumed then.
* @param string $encoding (optional) The used internally by this function character encoding. If it is omitted, the platform character set will be used by default.
* @return int Returns < 0 if $string1 is less than $string2; > 0 if $string1 is greater than $string2; and 0 if the strings are equal.
* This function is aimed at replacing the function strnatcasecmp() for human-language strings.
* @link http://php.net/manual/en/function.strnatcasecmp
*/
function api_strnatcasecmp($string1, $string2, $language = null, $encoding = null)
{
return api_strnatcmp(api_strtolower($string1, $encoding), api_strtolower($string2, $encoding), $language, $encoding);
}
