/**
* Converts EntityQuery to IExpresion object.
*
* Note that projections, and references to associated entities are useless and won't be
* presented in the resulting expression because required joins can only be specified
* as sources for selection
*
* @todo check whether we refer to encapsulants and avoid this
*
* @return IExpression
*/
function toExpression()
{
if (!$this->condition) {
return new ExpressionChain();
}
$eqb = new EntityQueryBuilder($this->entity);
$subjected = $this->condition->toSubjected($eqb);
Assert::isTrue(sizeof($eqb->getSelectQuerySources()) == 1, 'do not refer to %s encapsulants here', $this->entity->getLogicalSchema()->getEntityName());
return $subjected;
}
/**
* @param DB $db RDBMS to use
* @param IQueryable $entity ORM-related entity representation
*/
function __construct(DB $db, IQueryable $entity)
{
$this->db = $db;
$this->entity = $entity;
$this->map = $entity->getMap();
$this->logicalSchema = $entity->getLogicalSchema();
$this->physicalSchema = $entity->getPhysicalSchema();
$this->identifier = $this->logicalSchema->getIdentifier();
if ($this->identifier) {
$this->identityMap = new OrmIdentityMap($this->logicalSchema);
}
}
/**
* @return EntityQueryBuilder
*/
function joinEncapsulant($encapsulant)
{
Assert::isScalar($encapsulant);
if (!isset($this->joined[$encapsulant])) {
$property = $this->entity->getLogicalSchema()->getProperty($encapsulant);
$type = $property->getType();
Assert::isTrue($type instanceof AssociationPropertyType);
$builder = $this->joined[$encapsulant] = new self($type->getContainer(), $this->alias . '_' . $encapsulant);
$builder->joins = array();
$this->join($property, $type, $builder, end($this->joins));
}
return $this->joined[$encapsulant];
}
function getContainerClassName(OrmProperty $property)
{
return $this->container->getLogicalSchema()->getEntityName() . ucfirst($property->getName()) . 'Container';
}
protected function getCtorArgumentsPhpCode()
{
return array($this->container->getLogicalSchema()->getEntityName() . '::orm()', 'new AssociationMultiplicity(AssociationMultiplicity::' . $this->multiplicity->getId() . ')', 'new AssociationBreakAction(AssociationBreakAction::' . $this->action->getId() . ')');
}
protected function getCtorArgumentsPhpCode()
{
$proxyName = $this->proxy->getLogicalSchema()->getEntityName();
return array($proxyName . '::orm()', $this->container->toPhpCall(), $this->encapsulant->toPhpCall());
}
/**
* @aux
* @return EntityProperty
*/
private function guessEntityProperty($path)
{
$chunks = explode('.', $path);
$name = reset($chunks);
return $this->processProperty(join('.', array_slice($chunks, 1)), $this->entity->getLogicalSchema()->getProperty($name));
}
