/**
* Process a placeholder node if it's part of 'contains()'
* or equals ('=' or '==') expression.
* @param epQueryNode &$node
* @return boolean
*/
protected function processPlaceholder(epQueryNode &$node)
{
// done if not a placeholder node
if ($node->getType() != EPQ_N_PLACEHOLDER) {
return true;
}
// get placeholder value
if (!($v =& $this->_getPlaceholderValue($node))) {
return true;
}
// we only process array or epObject
if (!is_array($v) && !$v instanceof epObject) {
return true;
}
// get parent node
if (!($parent =& $node->getParent())) {
return true;
}
// path prefix for the placeholder value
$prefix = '';
// is it a part of contains()?
if (($parent_t = $parent->getType()) == EPQ_N_CONTAINS) {
if ($var =& $parent->getChild('var')) {
if ($path = $var->getParam('path')) {
$this->pm->addContainedRoot($path, $prefix);
}
}
} else {
if ($parent_t == EPQ_N_EXPR_COMPARISON) {
if ('=' == $parent->getParam('op')) {
if ($left = $parent->getChild('left')) {
if ($left->getType() == EPQ_N_VARIABLE) {
$prefix = $left->getParam('path');
}
}
if ($right = $parent->getChild('right')) {
if ($right->getType() == EPQ_N_VARIABLE) {
$prefix = $right->getParam('path');
}
}
}
}
}
// no more processing if prefix is still empty
if (!$prefix) {
return true;
}
// check if prefix points to an object and the placehodler
// is a *persisted* epObject. a non-persisted object is
// treated as an example object.
if ($this->pm->isObject($prefix)) {
if ($v instanceof epObject && $v->oid) {
// if so, set 'specific' class on query path
$this->pm->specificClass($prefix, $v->epGetClass());
}
}
// create a syntax tree for the array/object
if (!($nodes =& $this->_createSyntaxNodes($v, $prefix))) {
return true;
}
// make AND syntax nodes
if (!($and_node = $this->_andNodes($nodes))) {
return true;
}
// get parent's parent
if (!($grand_parent = $parent->getParent())) {
return true;
}
// call grand-parent to replace with parent this 'and' node
$grand_parent->replaceChild($parent, $and_node);
// keep the replaced node so later we can reverse
$and_node->setParam("replaced", $parent);
return true;
}
/**
* Process a placeholder node if it's part of 'contains()'
* or equals ('=' or '==') expression.
* @param epQueryNode &$node
* @return boolean
*/
protected function processPlaceholder(epQueryNode &$node)
{
// done if not a placeholder node
if ($node->getType() != EPQ_N_PLACEHOLDER) {
return true;
}
// get placeholder value
if (!($v =& $this->_getPlaceholderValue($node))) {
return true;
}
// we only process array or epObject
if (!is_array($v) && !$v instanceof epObject) {
return true;
}
// get parent node
if (!($parent =& $node->getParent())) {
return true;
}
// path prefix for the placeholder value
$prefix = '';
// is it a part of contains()?
if (($parent_t = $parent->getType()) == EPQ_N_CONTAINS) {
if ($var =& $parent->getChild('var')) {
if ($path = $var->getParam('path')) {
$this->pm->addContainedRoot($path, $prefix);
}
}
} else {
if ($parent_t == EPQ_N_EXPR_COMPARISON) {
if ('=' == $parent->getParam('op')) {
if ($left = $parent->getChild('left')) {
if ($left->getType() == EPQ_N_VARIABLE) {
$prefix = $left->getParam('path');
}
}
if ($right = $parent->getChild('right')) {
if ($right->getType() == EPQ_N_VARIABLE) {
$prefix = $right->getParam('path');
}
}
}
}
}
// no more processing if prefix is still empty
if (!$prefix) {
return true;
}
// create a syntax tree for the array/object
if (!($nodes =& $this->_createSyntaxNodes($v, $prefix))) {
return true;
}
// make AND syntax nodes
if (!($and_node = $this->_andNodes($nodes))) {
return true;
}
// get parent's parent
if (!($grand_parent = $parent->getParent())) {
return true;
}
// call grand-parent to replace with parent this 'and' node
$grand_parent->replaceChild($parent, $and_node);
return true;
}
