Move common methods to traits

app/Repositories/Journal/JournalRepositoryInterface.php

@@ -36,6 +36,7 @@ use Illuminate\Support\MessageBag;
  */
 interface JournalRepositoryInterface
 {
+
     /**
      * @param TransactionJournal $journal
      * @param TransactionType    $type
@@ -99,6 +100,15 @@ interface JournalRepositoryInterface
      */
     public function getAssetTransaction(TransactionJournal $journal): ?Transaction;
 
+    /**
+     * Get account of transaction that is more than zero. Only works with unsplit journals.
+     *
+     * @param TransactionJournal $journal
+     *
+     * @return Account
+     */
+    public function getDestinationAccount(TransactionJournal $journal): Account;
+
     /**
      * @param TransactionJournal $journal
      *
@@ -106,6 +116,15 @@ interface JournalRepositoryInterface
      */
     public function getNote(TransactionJournal $journal): ?Note;
 
+    /**
+     * Get account of transaction that is less than zero. Only works with unsplit journals.
+     *
+     * @param TransactionJournal $journal
+     *
+     * @return Account
+     */
+    public function getSourceAccount(TransactionJournal $journal): Account;
+
     /**
      * @return Collection
      */