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DibiTranslator: speed optimizations

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This commit is contained in:
David Grudl
2010-08-03 00:57:35 +02:00
parent 97da612604
commit 20d0163316
1 changed files with 24 additions and 16 deletions
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40
dibi/libs/DibiTranslator.php
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@@ -47,6 +47,9 @@ final class DibiTranslator extends DibiObject
/** @var int */
private $offset;
/** @var array */
private $dCache;
public function __construct(IDibiDriver $driver)
@@ -74,6 +77,12 @@ final class DibiTranslator extends DibiObject
*/
public function translate(array $args)
{
$args = array_values($args);
while (count($args) === 1 && is_array($args[0])) { // implicit array expansion
$args = array_values($args[0]);
}
$this->args = $args;
$this->limit = -1;
$this->offset = 0;
$this->hasError = FALSE;
@@ -82,8 +91,6 @@ final class DibiTranslator extends DibiObject
// shortcuts
$cursor = & $this->cursor;
$cursor = 0;
$this->args = array_values($args);
$args = & $this->args;
// conditional sql
$this->ifLevel = $this->ifLevelStart = 0;
@@ -92,9 +99,9 @@ final class DibiTranslator extends DibiObject
// iterate
$sql = array();
while ($cursor < count($args))
while ($cursor < count($this->args))
{
$arg = $args[$cursor];
$arg = $this->args[$cursor];
$cursor++;
// simple string means SQL
@@ -142,7 +149,7 @@ final class DibiTranslator extends DibiObject
if (is_string(key($arg))) {
// associative array -> autoselect between SET or VALUES & LIST
if ($commandIns === NULL) {
$commandIns = strtoupper(substr(ltrim($args[0]), 0, 6));
$commandIns = strtoupper(substr(ltrim($this->args[0]), 0, 6));
$commandIns = $commandIns === 'INSERT' || $commandIns === 'REPLAC';
$sql[] = $this->formatValue($arg, $commandIns ? 'v' : 'a');
} else {
@@ -151,12 +158,6 @@ final class DibiTranslator extends DibiObject
}
$lastArr = $cursor;
continue;
} elseif ($cursor === 1) {
// implicit array expansion
$cursor = 0;
array_splice($args, 0, 1, $arg);
continue;
}
}
@@ -414,7 +415,10 @@ final class DibiTranslator extends DibiObject
if (is_string($value)) {
return $this->driver->escape($value, dibi::TEXT);
} elseif (is_int($value) || is_float($value)) {
} elseif (is_int($value)) {
return (string) $value;
} elseif (is_float($value)) {
return rtrim(rtrim(number_format($value, 5, '.', ''), '0'), '.');
} elseif (is_bool($value)) {
@@ -564,11 +568,15 @@ final class DibiTranslator extends DibiObject
*/
private function delimite($value)
{
$parts = explode('.', self::substitute($value));
foreach ($parts as & $value) {
$value = $value === '*' ? '*' : $this->driver->escape($value, dibi::IDENTIFIER);
$value = self::substitute($value);
if (isset($this->dCache[$value])) {
return $this->dCache[$value];
}
return implode('.', $parts);
$parts = explode('.', $value);
foreach ($parts as & $v) {
if ($v !== '*') $v = $this->driver->escape($v, dibi::IDENTIFIER);
}
return $this->dCache[$value] = implode('.', $parts);
}