Avoid notices in buffer addon

diff --git a/buffer/buffer.php b/buffer/buffer.php
index 869260d3613aec8ae6426434eac2beb9ab9e37e1..84ea0be85f3d153a6bf15ebf41bc6d8a75bd53c8 100644 (file)
--- a/buffer/buffer.php
+++ b/buffer/buffer.php
@@ -114,10 +114,10 @@ function buffer_connect(App $a)
        $buffer = new BufferApp($client_id, $client_secret, $callback_url);
 
        if (!$buffer->ok) {
-               $o .= '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
+               $o = '<a href="' . $buffer->get_login_url() . '">Connect to Buffer!</a>';
        } else {
                Logger::log("buffer_connect: authenticated");
-               $o .= L10n::t("You are now authenticated to buffer. ");
+               $o = L10n::t("You are now authenticated to buffer. ");
                $o .= '<br /><a href="' . $a->getBaseURL() . '/settings/connectors">' . L10n::t("return to the connector page") . '</a>';
                PConfig::set(local_user(), 'buffer','access_token', $buffer->access_token);
        }
@@ -236,8 +236,8 @@ function buffer_settings_post(App $a, array &$b)
                        PConfig::set(local_user(), 'buffer', 'post'           , false);
                        PConfig::set(local_user(), 'buffer', 'post_by_default', false);
                } else {
-                       PConfig::set(local_user(), 'buffer', 'post'           , intval($_POST['buffer']));
-                       PConfig::set(local_user(), 'buffer', 'post_by_default', intval($_POST['buffer_bydefault']));
+                       PConfig::set(local_user(), 'buffer', 'post'           , intval(defaults($_POST, 'buffer', false)));
+                       PConfig::set(local_user(), 'buffer', 'post_by_default', intval(defaults($_POST, 'buffer_bydefault', false)));
                }
        }
 }