jayrulez
(Waprave)
1
Does anyone have any idea how one can sort a CMap of objects based on a property of the object?
I tried using uasort but that will not accept CMap;
protected static function compareBlocks($blockA, $blockB)
{
if($blockA instanceof LayoutBlock && $blockB instanceof LayoutBlock)
{
if($blockA->getWeight() === $blockB->getWeight())
{
return 0;
}
return ($blockA->getWeight() <= $blockB->getWeight()) ? -1 : 1;
}else{
throw new CException(Util::t('Both blocks must be instances of LayoutBlock or one of it\'s children.'));
}
}
protected static function sortBlocks($blocks)
{
if($blocks instanceof CMap)
{
uasort($blocks, array(__CLASS__,'compareBlocks'));
}
return $blocks;
}
I also tried to write a simple bubble sort function to do it, but I was having trouble there using the CMapIterator.
Any help is welcome.
mikl
(Mike)
2
It’s easiest to create a new CMap. You can use an intermediate PHP array to do the actual sorting:
$data=$oldMap->toArray()
$data=you_sort_method($data);
$newMap=new CMap($data);
jayrulez
(Waprave)
3
Thank you.
prior to reading your post, I came up with
protected static function compareBlocks($blockA, $blockB)
{
if($blockA instanceof LayoutBlock && $blockB instanceof LayoutBlock)
{
if($blockA->getWeight() === $blockB->getWeight())
{
return 0;
}
return ($blockA->getWeight() <= $blockB->getWeight()) ? -1 : 1;
}else{
throw new CException(Util::t('Both blocks must be instances of LayoutBlock or one of it\'s children.'));
}
}
protected static function sortBlocks($blocks)
{
if($blocks instanceof CMap)
{
$blocks = Util::mapToArray($blocks);
}
uasort($blocks, array(__CLASS__,'compareBlocks'));
return Util::arrayToMap($blocks);
}
However, I’d like to change it to something more effecient.
