Expand API for recurring transactions.

app/Repositories/Recurring/RecurringRepositoryInterface.php

@@ -89,6 +89,15 @@ interface RecurringRepositoryInterface
      */
     public function getJournalCount(Recurrence $recurrence, Carbon $start = null, Carbon $end = null): int;
 
+    /**
+     * Get journal ID's for journals created by this recurring transaction.
+     *
+     * @param Recurrence $recurrence
+     *
+     * @return array
+     */
+    public function getJournalIds(Recurrence $recurrence): array;
+
     /**
      * Get the notes.
      *