/**
* @param AST\Bag\Context $element Element to visit.
*
* @return string
*/
private function flattenAccessPath(AST\Bag\Context $element)
{
$flattenedDimensions = [$element->getId()];
foreach ($element->getDimensions() as $dimension) {
$flattenedDimensions[] = $dimension[1];
}
return implode('.', $flattenedDimensions);
}
/**
* {@inheritDoc}
*/
public function visitAccess(AST\Bag\Context $element, &$handle = null, $eldnah = null)
{
$flattenedDimensions = [sprintf('["%s"]', $element->getId())];
foreach ($element->getDimensions() as $dimension) {
$flattenedDimensions[] = sprintf('["%s"]', $dimension[AST\Bag\Context::ACCESS_VALUE]);
}
return '$target' . implode('', $flattenedDimensions);
}
/**
* @inheritDoc
*/
public function visitAccess(AST\Bag\Context $element, &$handle = null, $eldnah = null)
{
$dimensions = $element->getDimensions();
// nested path
if (!empty($dimensions)) {
return $this->flattenAccessPath($element);
}
return $element->getId();
}
/**
* {@inheritDoc}
*/
public function visitAccess(AST\Bag\Context $element, &$handle = null, $eldnah = null)
{
$contextPointer = $this->context[$element->getId()];
foreach ($element->getDimensions() as $dimension) {
$rawAattribute = $dimension[AST\Bag\Context::ACCESS_VALUE];
$attribute = is_array($contextPointer) ? '[' . $rawAattribute . ']' : $rawAattribute;
$contextPointer = $this->accessor->getValue($contextPointer, $attribute);
}
return $contextPointer;
}
/**
* {@inheritDoc}
*/
public function visitAccess(AST\Bag\Context $element, &$handle = null, $eldnah = null)
{
$dimensions = $element->getDimensions();
// simple column access
if (count($dimensions) === 0) {
return sprintf('%s.%s', self::ROOT_ALIAS_PLACEHOLDER, parent::visitAccess($element, $handle, $eldnah));
}
// this is the real column that we are trying to access
$finalColumn = array_pop($dimensions)[1];
// and this is a list of tables that need to be joined
$tablesToJoin = array_map(function ($dimension) {
return $dimension[1];
}, $dimensions);
$tablesToJoin = array_merge([$element->getId()], $tablesToJoin);
$this->detectedJoins[] = $tablesToJoin;
return sprintf('" . $this->getJoinAlias($target, "%s") . ".%s', end($tablesToJoin), $finalColumn);
}
/**
* {@inheritDoc}
*/
public function visitAccess(AST\Bag\Context $element, &$handle = null, $eldnah = null)
{
$dimensions = $element->getDimensions();
// simple column access
if (count($dimensions) === 0) {
return sprintf('%s.%s', $this->getRootAlias(), $element->getId());
}
// this is the real column that we are trying to access
$finalColumn = array_pop($dimensions);
// and this is a list of tables that need to be joined
$tablesToJoin = array_map(function ($dimension) {
return $dimension[1];
}, $dimensions);
$tablesToJoin = array_merge([$element->getId()], $tablesToJoin);
// check if the first dimension is a known alias
if (isset($this->knownAliases[$tablesToJoin[0]])) {
$joinTo = $tablesToJoin[0];
array_pop($tablesToJoin);
} else {
// if not, it's the root table
$joinTo = $this->getRootAlias();
}
// and here is the auto-join magic
foreach ($tablesToJoin as $table) {
$joinAlias = 'j_' . $table;
$join = sprintf('%s.%s', $joinTo, $table);
if (!isset($this->joinMap[$join])) {
$this->joinMap[$join] = $joinAlias;
$this->qb->join(sprintf('%s.%s', $joinTo, $table), $joinAlias);
} else {
$joinAlias = $this->joinMap[$join];
}
$joinTo = $joinAlias;
}
return sprintf('%s.%s', $joinTo, $finalColumn[1]);
}
/**
* Visit a context
*
* @param \Hoa\Visitor\Element $element Element to visit.
* @param mixed &$handle Handle (reference).
* @param mixed $eldnah Handle (not reference).
* @return mixed
*/
protected function visitContext(Ruler\Model\Bag\Context $element, &$handle = null, $eldnah = null)
{
$context = $this->getContext();
if (null === $context) {
throw new Ruler\Exeption\Asserter('Assert needs a context to work properly.', 1);
}
$id = $element->getId();
if (!isset($context[$id])) {
throw new Ruler\Exception\Asserter('Context reference %s does not exists.', 2, $id);
}
$contextPointer = $context[$id];
foreach ($element->getDimensions() as $dimensionNumber => $dimension) {
++$dimensionNumber;
switch ($dimension[Ruler\Model\Bag\Context::ACCESS_TYPE]) {
case Ruler\Model\Bag\Context::ARRAY_ACCESS:
$this->visitContextArray($contextPointer, $dimension, $dimensionNumber, $id, $handle, $eldnah);
break;
case Ruler\Model\Bag\Context::ATTRIBUTE_ACCESS:
$this->visitContextAttribute($contextPointer, $dimension, $dimensionNumber, $id, $handle, $eldnah);
break;
case Ruler\Model\Bag\Context::METHOD_ACCESS:
$this->visitContextMethod($contextPointer, $dimension, $dimensionNumber, $id, $handle, $eldnah);
break;
}
}
return $contextPointer;
}