/**
* The most magic method. Do not edit without strong need, and for sure run tests after.
*
* @param QueryChain $chain
* @param array $storages
*/
protected function collectExprChains(QueryChain $chain, $storages = array('hidden'))
{
$last_elem = $chain->getLastElement();
$bf_chains = $last_elem->getValue()->getBuildFromChains();
$pre_chain = clone $chain;
//$pre_chain->removeLastElement();
foreach ($bf_chains as $bf_chain) {
// collect hidden chain
$tmp_chain = clone $pre_chain;
// exclude init entity
/** @var QueryChainElement[] $bf_elements */
$bf_elements = array_slice($bf_chain->getAllElements(), 1);
// add elements
foreach ($bf_elements as $bf_element) {
$tmp_chain->addElement($bf_element);
}
foreach ($storages as $storage) {
$reg_chain = $this->registerChain($storage, $tmp_chain);
}
// replace "build_from" chain end by registered chain end
// actually it's better and more correctly to replace the whole chain
$bf_chain->removeLastElement();
/** @var QueryChain $reg_chain */
$bf_chain->addElement($reg_chain->getLastElement());
// check elements to recursive collect hidden chains
foreach ($bf_elements as $bf_element) {
if ($bf_element->getValue() instanceof ExpressionField) {
$this->collectExprChains($tmp_chain);
}
}
}
}
public function registerChain($section, QueryChain $chain, $opt_key = null)
{
$alias = $chain->getAlias();
if (isset($this->global_chains[$alias])) {
$reg_chain = $this->global_chains[$alias];
} else {
$reg_chain = $chain;
$def = $reg_chain->getDefinition();
$this->global_chains[$alias] = $chain;
$this->global_chains[$def] = $chain;
}
$storage_name = $section . '_chains';
$this->{$storage_name}[$alias] = $reg_chain;
if (!is_null($opt_key)) {
$this->{$storage_name}[$opt_key] = $reg_chain;
}
// get default options from expressions
if ($chain->getLastElement()->getValue() instanceof ExpressionField) {
$options = $chain->getLastElement()->getValue()->getOptions();
if (!empty($options)) {
foreach ($options as $option => $value) {
if (!isset($this->options[$option])) {
$this->options[$option] = $value;
}
}
}
}
return $reg_chain;
}
