/**
* Get XML tree
*
* @return xml.Tree
*/
public function getTree()
{
foreach ($this->tables as $t) {
$constKeyList = array();
$tn = $this->doc->root()->nodeAt(0)->addChild(new Node('table', NULL, array('name' => $t->name)));
if ($constraint = $t->getFirstForeignKeyConstraint()) {
do {
if (isset($constKeyList[$this->constraintKey($constraint)])) {
$this->cat && $this->cat->warn($t->name, 'has a double constraint' . "\n" . xp::stringOf($constraint));
continue;
}
$constKeyList[$this->constraintKey($constraint)] = true;
$cn = $tn->addChild(new Node('constraint', NULL, array('name' => trim($constraint->getName()))));
$fgn = $cn->addChild(new Node('reference', NULL, array('table' => $constraint->getSource(), 'role' => DBXMLNamingContext::referencingForeignKeyConstraintName($t, $constraint))));
foreach ($constraint->getKeys() as $attribute => $sourceattribute) {
$fgn->addChild(new Node('key', NULL, array('attribute' => $attribute, 'sourceattribute' => $sourceattribute)));
}
} while ($constraint = $t->getNextForeignKeyConstraint());
}
}
return $this->doc;
}
