API: Fix return type of empty values in file/history

If the array is not casted to a object, json_encode will encode it as
[] if empty, but {} if it contains data. Always return an object by
casting the array to an object if it is empty.

Fixes #15

Signed-off-by: Florian Pritz <bluewind@xinu.at>

1 files changed, 7 insertions, 0 deletions

diff --git a/application/controllers/api/v2/file.php b/application/controllers/api/v2/file.php
index 6f95d5525..5dedcd508 100644
--- a/application/controllers/api/v2/file.php
+++ b/application/controllers/api/v2/file.php
@@ -65,6 +65,13 @@ class file extends \controllers\api\api_controller {
 				unset($history['multipaste_items'][$key]['items'][$inner_key]['sort_order']);
 			}
 		}
+
+		foreach (array("items", "multipaste_items") as $key) {
+			if (empty($history[$key])) {
+				$history[$key] = (object) array();
+			}
+		}
+
 		return $history;
 	}