notifications: fix pagination of listByUserIdPaged

we have to filter in sql query, otherwise we don't get consistent per page count

src/notifications.js

@@ -3,7 +3,7 @@
 exports = module.exports = {
     get,
     ack,
-    getAllPaged,
+    listByUserIdPaged,
 
     onEvent,
 
@@ -80,19 +80,18 @@ function ack(id, callback) {
 }
 
 // if acknowledged === null we return all, otherwise yes or no based on acknowledged as a boolean
-function getAllPaged(userId, acknowledged, page, perPage, callback) {
+function listByUserIdPaged(userId, options, page, perPage, callback) {
     assert.strictEqual(typeof userId, 'string');
-    assert(acknowledged === null || typeof acknowledged === 'boolean');
+    assert.strictEqual(typeof options, 'object');
+    assert(options.acknowledged === null || typeof options.acknowledged === 'boolean');
     assert.strictEqual(typeof page, 'number');
     assert.strictEqual(typeof perPage, 'number');
     assert.strictEqual(typeof callback, 'function');
 
-    notificationdb.listByUserIdPaged(userId, page, perPage, function (error, result) {
+    notificationdb.listByUserIdPaged(userId, options, page, perPage, function (error, result) {
         if (error) return callback(error);
 
-        if (acknowledged === null) return callback(null, result);
-
-        callback(null, result.filter(function (r) { return r.acknowledged === acknowledged; }));
+        callback(null, result);
     });
 }