con = &$con;
$this->xml = $xml;
$schema = dbSchema::init($this->con);
$this->tables = $schema->getTables();
unset($schema);
}
public function replace($str, $rep)
{
$this->xml = str_replace($str, $rep, $this->xml);
}
public function execute($version = 0)
{
$this->test_version = $version;
$x = @simplexml_load_string($this->xml);
if (!$x) {
throw new Exception('Unable to load XML file.');
}
$this->parseNode($x);
}
protected function parseNode($node)
{
foreach ($node->children() as $n) {
switch (dom_import_simplexml($n)->nodeName) {
case 'test':
$this->performTest($n);
break;
case 'action':
$this->performAction($n);
break;
}
}
}
protected function performTest($node)
{
/* Test like:
...
*/
if (isset($node['type']) && (string) $node['type'] == 'table') {
$test['result'] = in_array($node['name'], $this->tables);
$test['label'] = 'Table %s does not exists';
$test['string'] = (string) $node['name'];
$xtest = $node;
}
/* Test syntax:
...
*/
elseif (isset($node['type']) && (string) $node['type'] == 'column') {
$c = explode('.', $node['name']);
if (count($c) != 2) {
return false;
}
list($table, $col) = $c;
$rs = $this->con->getColumns($table);
$test['result'] = isset($rs[$col]);
$test['label'] = 'Column %s does not exists';
$test['string'] = (string) $node['name'];
$xtest = $node;
}
/* Test syntax:
...
*/
elseif (isset($node['type']) && (string) $node['type'] == 'version') {
$comp = isset($node['comp']) ? $node['comp'] : '>';
$test['result'] = version_compare($node['name'], $this->test_version, $comp);
$test['label'] = 'Version %s is too low';
$test['string'] = (string) $node['name'];
$xtest = $node;
}
# End tests
if (isset($xtest)) {
if ($xtest['eq'] == 'neq') {
$test['result'] = !$test['result'];
}
if (isset($xtest['alert'])) {
$test['alert'] = (boolean) (integer) $xtest['alert'];
} else {
$test['alert'] = false;
}
if (isset($xtest['label'])) {
$test['label'] = (string) $xtest['label'];
}
if (isset($xtest['string'])) {
$test['string'] = (string) $xtest['string'];
}
unset($xtest);
# Test false
if (!$test['result']) {
if ($test['alert']) {
throw new Exception(sprintf($test['label'], $test['string']));
}
}
# Test true
else {
$this->parseNode($node);
}
} else {
return false;
}
}
protected function performAction($node)
{
$req = trim((string) $node);
if ($req) {
try {
$this->con->execute($req);
} catch (Exception $e) {
if ($node['silent'] != 1) {
throw $e;
}
}
}
}
}