Added ability to handle inner selects

Author: rkrx

src/Builder/Select.php

@@ -418,8 +418,16 @@ private function buildForUpdate($query) {
 	 * @return string
 	 */
 	private function buildTableName($alias, $name) {
-		$name = rtrim(trim($name), ';');
-		return sprintf("(%s) %s", $name, $alias);
+		if(is_object($name)) {
+			$name = (string) $name;
+			$lines = explode("\n", $name);
+			foreach($lines as &$line) {
+				$line = "\t{$line}";
+			}
+			$name = join("\n", $lines);
+			$name = '(' . trim(rtrim(trim($name), ';')) . ')';
+		}
+		return sprintf("%s %s", $name, $alias);
 	}
 
 	/**

tests/Builder/SelectTest.php

@@ -132,4 +132,16 @@ public function testForUpdate() {
 		->asString();
 		$this->assertEquals('SELECT a FROM test t FOR UPDATE ;', $str);
 	}
+
+	public function testInnerSelect() {
+		$select = TestSelect::create()
+		->from('a', 'table')
+		->where('a.id=1');
+
+		$str = (string) TestSelect::create()
+		->from('t', $select)
+		->asString();
+
+		$this->assertEquals('SELECT * FROM (SELECT * FROM table a WHERE a.id=1) t ;', $str);
+	}
 }