/**
* @override
*/
public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
{
$dqlAlias = $this->collectionPathExpression->identificationVariable;
$parts = $this->collectionPathExpression->parts;
$assocField = array_pop($parts);
$qComp = $sqlWalker->getQueryComponent(implode('.', array_merge((array) $dqlAlias, $parts)));
$assoc = $qComp['metadata']->associationMappings[$assocField];
$sql = '';
if ($assoc->isOneToMany()) {
$targetClass = $sqlWalker->getEntityManager()->getClassMetadata($assoc->targetEntityName);
$targetAssoc = $targetClass->associationMappings[$assoc->mappedByFieldName];
$targetTableAlias = $sqlWalker->getSqlTableAlias($targetClass->primaryTable['name']);
$sourceTableAlias = $sqlWalker->getSqlTableAlias($qComp['metadata']->primaryTable['name'], $dqlAlias);
$whereSql = '';
foreach ($targetAssoc->targetToSourceKeyColumns as $targetKeyColumn => $sourceKeyColumn) {
$whereSql .= ($whereSql == '' ? ' WHERE ' : ' AND ') . $targetTableAlias . '.' . $sourceKeyColumn . ' = ' . $sourceTableAlias . '.' . $targetKeyColumn;
}
$sql = '(SELECT COUNT(' . "{$targetTableAlias}." . implode(", {$targetTableAlias}.", $targetAssoc->targetToSourceKeyColumns) . ') FROM ' . $targetClass->primaryTable['name'] . ' ' . $targetTableAlias . $whereSql . ')';
} else {
if ($assoc->isManyToMany()) {
// TODO
$targetTableAlias = $sqlWalker->getSqlTableAlias($assoc->joinTable['name']);
$sourceTableAlias = $sqlWalker->getSqlTableAlias($qComp['metadata']->primaryTable['name'], $dqlAlias);
$whereSql = '';
foreach ($assoc->relationToSourceKeyColumns as $targetKeyColumn => $sourceKeyColumn) {
$whereSql .= ($whereSql == '' ? ' WHERE ' : ' AND ') . $targetTableAlias . '.' . $targetKeyColumn . ' = ' . $sourceTableAlias . '.' . $sourceKeyColumn;
}
$sql = '(SELECT COUNT(' . "{$targetTableAlias}." . implode(", {$targetTableAlias}.", $assoc->joinTableColumns) . ') FROM ' . $assoc->joinTable['name'] . ' ' . $targetTableAlias . $whereSql . ')';
}
}
return $sql;
}
/**
* @override
* @todo If the collection being counted is already joined, the SQL can be simpler (more efficient).
*/
public function getSql(\Doctrine\ORM\Query\SqlWalker $sqlWalker)
{
$platform = $sqlWalker->getConnection()->getDatabasePlatform();
$dqlAlias = $this->collectionPathExpression->identificationVariable;
$assocField = $this->collectionPathExpression->field;
$qComp = $sqlWalker->getQueryComponent($dqlAlias);
$class = $qComp['metadata'];
$assoc = $class->associationMappings[$assocField];
$sql = 'SELECT COUNT(*) FROM ';
if ($assoc['type'] == \Doctrine\ORM\Mapping\ClassMetadata::ONE_TO_MANY) {
$targetClass = $sqlWalker->getEntityManager()->getClassMetadata($assoc['targetEntity']);
$targetTableAlias = $sqlWalker->getSqlTableAlias($targetClass->table['name']);
$sourceTableAlias = $sqlWalker->getSqlTableAlias($class->table['name'], $dqlAlias);
$sql .= $targetClass->getQuotedTableName($platform) . ' ' . $targetTableAlias . ' WHERE ';
$owningAssoc = $targetClass->associationMappings[$assoc['mappedBy']];
$first = true;
foreach ($owningAssoc['targetToSourceKeyColumns'] as $targetColumn => $sourceColumn) {
if ($first) {
$first = false;
} else {
$sql .= ' AND ';
}
$sql .= $targetTableAlias . '.' . $sourceColumn . ' = ' . $sourceTableAlias . '.' . $class->getQuotedColumnName($class->fieldNames[$targetColumn], $platform);
}
} else {
// many-to-many
$targetClass = $sqlWalker->getEntityManager()->getClassMetadata($assoc['targetEntity']);
$owningAssoc = $assoc['isOwningSide'] ? $assoc : $targetClass->associationMappings[$assoc['mappedBy']];
$joinTable = $owningAssoc['joinTable'];
// SQL table aliases
$joinTableAlias = $sqlWalker->getSqlTableAlias($joinTable['name']);
$sourceTableAlias = $sqlWalker->getSqlTableAlias($class->table['name'], $dqlAlias);
// join to target table
$sql .= $targetClass->getQuotedJoinTableName($owningAssoc, $platform) . ' ' . $joinTableAlias . ' WHERE ';
$joinColumns = $assoc['isOwningSide'] ? $joinTable['joinColumns'] : $joinTable['inverseJoinColumns'];
$first = true;
foreach ($joinColumns as $joinColumn) {
if ($first) {
$first = false;
} else {
$sql .= ' AND ';
}
$sourceColumnName = $class->getQuotedColumnName($class->fieldNames[$joinColumn['referencedColumnName']], $platform);
$sql .= $joinTableAlias . '.' . $joinColumn['name'] . ' = ' . $sourceTableAlias . '.' . $sourceColumnName;
}
}
return '(' . $sql . ')';
}
