/**
* Parses left join
* @example: a.SampleRelationName b will be parsed to parentAlias: a, relationName: SampleRelationName, alias: b
*
* @param string $leftJoin
* @param QueryInterface $query
* @throws QueryException
* @return array
*/
public function parseLeftJoin($leftJoin, QueryInterface $query)
{
$posParentAlias = strpos($leftJoin, '.');
if ($posParentAlias === false) {
throw new QueryException("Left join '{$leftJoin}' misses parent alias!");
}
$posAlias = strpos($leftJoin, ' ');
if ($posAlias === false) {
throw new QueryException("Left join '{$leftJoin}' misses alias!");
}
$explodePositions = array($posParentAlias, $posAlias);
list($parentAlias, $relationName, $alias) = StringExplode::explodeAt($leftJoin, $explodePositions);
if (!$query->hasQueryComponent($parentAlias)) {
throw new QueryException("Parent alias '{$parentAlias}' is not defined in query!");
}
if ($query->hasQueryComponent($alias)) {
throw new QueryException("Duplicate alias '{$alias}' in query!");
}
$parent = $query->getQueryComponent($parentAlias);
$parentTableName = $parent['table'];
$parentTable = $query->getRecordManager()->getTable($parentTableName);
$relation = $parentTable->getRelation($relationName);
return array('parent' => $parentAlias, 'alias' => $alias, 'relation' => $relationName, 'table' => $relation->getJoinTableName($relationName));
}
/**
* @param string $method
* @param string $text
* @param string $expected
* @dataProvider provideRTrimMultiLine
*/
public function testRTrimMultiLine($method, $text, $expected)
{
$actual = StringExplode::trimMultiLines($text, $method, PHP_EOL);
$this->assertEquals($expected, $actual);
}
/**
* Sets from part for query
*
* @param string $from
* @param array|string $params
* @throws QueryException
* @return $this
*/
public function from($from, $params = array())
{
$pos = strpos($from, ' ');
if ($pos === false) {
throw new QueryException("Missing alias in query from '{$from}'!");
}
list($tableName, $alias) = StringExplode::explodeAt($from, $pos);
$alias = trim($alias);
$this->rootAlias = $alias;
$this->queryComponents[$alias] = array('table' => $tableName);
$quote = $this->getRecordManager()->getConnection()->getIdentifierQuote();
$from = $quote . $tableName . $quote . ' ' . $alias;
$this->setQueryPart(self::PART_FROM, $from, $params);
return $this;
}
/**
* @param string $text
* @param string $prefix
* @param string $inlineCommentStart
* @param string $suffix
* @return string
*/
private function formatComment($text, $prefix = '//', $inlineCommentStart = '//', $suffix = '')
{
$text = preg_replace('/^(.*?)$/m', $inlineCommentStart . ' $1', $text);
$text = StringExplode::trimMultiLines($text, 'rTrim', $this->eol);
return "{$prefix}{$text}{$suffix}";
}