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SimpleQuery: Make compare() alias aware 

refs #8826
refs #7693
This commit is contained in:
Johannes Meyer 2015-05-04 11:34:39 +02:00
parent 664017573f
commit 6612e4c1ae
1 changed files with 42 additions and 22 deletions
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64
library/Icinga/Data/SimpleQuery.php
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@ -43,6 +43,15 @@ class SimpleQuery implements QueryInterface
*/
protected $columns = array();
/**
* The columns and their aliases flipped in order to handle aliased sort columns
*
* Supposed to be used and populated by $this->compare *only*.
*
* @var array
*/
protected $flippedColumns;
/**
* The columns you're using to sort the query result
*
@ -219,32 +228,42 @@ class SimpleQuery implements QueryInterface
return $this;
}
public function compare($a, $b, $col_num = 0)
/**
* Compare $a with $b based on this query's sort rules and column aliases
*
* @param object $a
* @param object $b
* @param int $orderIndex
*
* @return int
*/
public function compare($a, $b, $orderIndex = 0)
{
// Last column to sort reached, rows are considered being equal
if (! array_key_exists($col_num, $this->order)) {
return 0;
}
$col = $this->order[$col_num][0];
$dir = $this->order[$col_num][1];
// TODO: throw Exception if column is missing
//$res = strnatcmp(strtolower($a->$col), strtolower($b->$col));
$res = @strcmp(strtolower($a->$col), strtolower($b->$col));
if ($res === 0) {
// return $this->compare($a, $b, $col_num++);
if (array_key_exists(++$col_num, $this->order)) {
return $this->compare($a, $b, $col_num);
} else {
return 0;
}
if (! array_key_exists($orderIndex, $this->order)) {
return 0; // Last column to sort reached, rows are considered being equal
}
if ($dir === self::SORT_ASC) {
return $res;
if ($this->flippedColumns === null) {
$this->flippedColumns = array_flip($this->columns);
}
$column = $this->order[$orderIndex][0];
if (array_key_exists($column, $this->flippedColumns)) {
$column = $this->flippedColumns[$column];
}
// TODO: throw Exception if column is missing
//$res = strnatcmp(strtolower($a->$column), strtolower($b->$column));
$result = @strcmp(strtolower($a->$column), strtolower($b->$column));
if ($result === 0) {
return $this->compare($a, $b, $orderIndex);
}
$direction = $this->order[$orderIndex][1];
if ($direction === self::SORT_ASC) {
return $result;
} else {
return $res * -1;
return $result * -1;
}
}
@ -426,6 +445,7 @@ class SimpleQuery implements QueryInterface
public function columns(array $columns)
{
$this->columns = $columns;
$this->flippedColumns = null; // Reset, due to updated columns
return $this;
}