public function compile(Expression $expression, DoctrineQueryBuilderParametersBinder $binder)
{
$result = '';
if ($expression->getFunction()) {
$compiledArgs = array();
foreach ($expression->getFunctionArgs() as $arg) {
if ($arg instanceof Expression) {
$compiledArgs[] = $this->compile($arg, $binder);
} else {
$compiledArgs[] = $this->resolveArgument($arg, $binder);
}
}
$result = $expression->getFunction() . '(' . implode(', ', $compiledArgs) . ')';
} else {
$result = $this->resolveArgument($expression->getExpression(), $binder);
}
if ($expression->getAlias()) {
$result .= ' AS ' . $expression->getAlias();
}
return $result;
}
public function testFunctionCallExpressionWithAlias()
{
$rawExpr = array('function' => 'CONCAT', 'args' => array(':firstname', array('function' => 'CONCAT', 'args' => array(' ', ':lastname'))));
$expr = new Expression($rawExpr, 'fullname');
$this->assertEquals('fullname', $expr->getAlias());
$this->assertSame($rawExpr, $expr->getExpression());
$this->assertEquals($rawExpr['function'], $expr->getFunction());
$this->assertTrue(is_array($expr->getFunctionArgs()));
$args1 = $expr->getFunctionArgs();
$this->assertEquals(2, count($args1));
$this->assertEquals(':firstname', $args1[0]);
$this->assertInstanceOf(Expression::clazz(), $args1[1]);
/* @var Expression $fetchSubArg */
$fetchSubArg = $args1[1];
$this->assertFalse($fetchSubArg->getAlias());
$args2 = $fetchSubArg->getFunctionArgs();
$this->assertTrue(is_array($args2));
$this->assertEquals(2, count($args2));
$this->assertEquals(' ', $args2[0]);
$this->assertEquals(':lastname', $args2[1]);
}