- added Select::fetchGroups

Author: rkrx

src/Kir/MySQL/Builder/RunnableSelect.php

@@ -109,6 +109,24 @@ public function fetchKeyValue() {
 		return $result;
 	}
 
+	/**
+	 * @param array $fields
+	 * @return array
+	 */
+	public function fetchGroups(array $fields) {
+		$rows = $this->fetchRows();
+		$result = array();
+		foreach($rows as $row) {
+			$tmp = &$result;
+			foreach($fields as $field) {
+				$tmp[$field] = [];
+				$tmp = &$tmp[$field];
+			}
+			$tmp = $row;
+		}
+		return $result;
+	}
+
 	/**
 	 * @return string[]
 	 */