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Update the level when moving items

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This commit is contained in:
Bharat Mediratta
2009-01-29 02:57:29 +00:00
parent d2b4c636c2
commit 01d81ec6b4
1 changed files with 8 additions and 1 deletions
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core/libraries/ORM_MPTT.php
+8 -1
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@@ -222,9 +222,17 @@ class ORM_MPTT_Core extends ORM {
$original_left = $this->left;
$original_right = $this->right;
$target_right = $target->right;
$level_delta = $target->level - $this->level;
$this->lock();
try {
if ($level_delta) {
// Update the levels for the to-be-moved items
$this->db->query(
"UPDATE `{$this->table_name}` SET `level` = `level` + $level_delta" .
" WHERE `left` >= $original_left AND `right` <= $original_right");
}
// Make a hole in the target for the move
$target->db->query(
"UPDATE `{$this->table_name}` SET `left` = `left` + $size_of_hole" .
@@ -261,7 +269,6 @@ class ORM_MPTT_Core extends ORM {
$this->db->query(
"UPDATE `{$this->table_name}` SET `right` = `right` - $size_of_hole" .
" WHERE `right` > $right");
} catch (Exception $e) {
$this->unlock();
throw $e;