protected static function exists(DOMXPath $xpath, ChariotContext $context, ChariotTagRepository $repository)
{
$nodes = array();
if (isset($context->currentNode)) {
$nodes = $xpath->query('*[@c:exists]', $context->currentNode);
} else {
$nodes = $xpath->query('//*[@c:exists]');
}
foreach ($nodes as $child) {
$existsValue = $child->getAttributeNodeNS(self::URN, 'exists')->nodeValue;
$child->removeAttributeNS(self::URN, 'exists');
if (!$context->hasAttribute($existsValue)) {
$child->nodeValue = '';
continue;
}
$ctx = $context->createChild();
$ctx->currentIndex = -1;
$ctx->currentValue = $context->getAttribute($existsValue);
$ctx->currentNode = $child;
$repos = clone $repository;
foreach ($repos as $r) {
$r->start($ctx, $repository);
}
}
}
public function start(ChariotContext $context, ChariotTagRepository $repository)
{
$xpath = $context->getGlobalAttribute('xpath');
$nodes = array();
if (isset($context->currentNode)) {
$nodes = $xpath->query('*[@c:foreach]', $context->currentNode);
} else {
$nodes = $xpath->query('//*[@c:foreach]');
}
foreach ($nodes as $child) {
$foreachValue = $child->getAttributeNodeNS(self::URN, 'foreach')->nodeValue;
$child->removeAttributeNS(self::URN, 'foreach');
$children = array();
$replacement = $context->getAttribute($foreachValue);
foreach ($replacement as $index => $replaceValue) {
foreach ($child->childNodes as $c) {
$clone = $c->cloneNode(true);
$ctx = $context->createChild();
$ctx->currentNode = $clone;
$ctx->currentIndex = $index;
$ctx->currentValue = $replaceValue;
$repos = clone $repository;
foreach ($repos as $r) {
$r->start($ctx, $repository);
}
$children[] = $clone;
}
}
// remove all children
$child->nodeValue = '';
// append new clone nodes
foreach ($children as $_cloneChild) {
$child->appendChild($_cloneChild);
}
}
}
