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conversation sql optimisations

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friendica 2012-01-02 16:54:37 -08:00
commit 4c35a6b0d7
3 changed files with 72 additions and 28 deletions
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59
include/conversation.php
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@ -884,3 +884,62 @@ function status_editor($a,$x, $notes_cid = 0) {
return $o;
}
function conv_sort($arr,$order) {
if((!(is_array($arr) && count($arr))))
return array();
$parents = array();
foreach($arr as $x)
if($x['id'] == $x['parent'])
$parents[] = $x;
if(stristr($order,'created'))
usort($parents,'sort_thr_created');
elseif(stristr($order,'commented'))
usort($parents,'sort_thr_commented');
foreach($parents as $x)
$x['children'] = array();
foreach($arr as $x) {
if($x['id'] != $x['parent']) {
$p = find_thread_parent_index($parents,$x);
$parents[$p]['children'][] = $x;
}
}
foreach($parents as $x)
if(count($x['children']))
usort($x['children'],'sort_thr_created_rev');
$ret = array();
foreach($parents as $x) {
$ret[] = $x;
foreach($x['children'] as $y)
$ret[] = $y;
}
return $ret;
}
function sort_thr_created($a,$b) {
return strcmp($b['created'],$a['created']);
}
function sort_thr_created_rev($a,$b) {
return strcmp($a['created'],$b['created']);
}
function sort_thr_commented($a,$b) {
return strcmp($b['commented'],$a['commented']);
}
function find_thread_parent_index($arr,$x) {
foreach($arr as $k => $v)
if($v['id'] == $x['parent'])
return $k;
}