New code.

app/Repositories/Budget/BudgetRepositoryInterface.php

@@ -2,6 +2,7 @@
 
 namespace FireflyIII\Repositories\Budget;
 use FireflyIII\Models\Budget;
+use FireflyIII\Models\LimitRepetition;
 use Carbon\Carbon;
 /**
  * Interface BudgetRepositoryInterface
@@ -10,6 +11,12 @@ use Carbon\Carbon;
  */
 interface BudgetRepositoryInterface
 {
+    /**
+     * @param Budget $budget
+     *
+     * @return boolean
+     */
+    public function destroy(Budget $budget);
 
     /**
      * @param Budget $budget
@@ -28,4 +35,30 @@ interface BudgetRepositoryInterface
      */
     public function updateLimitAmount(Budget $budget, Carbon $date, $amount);
 
+    /**
+     * @param array $data
+     *
+     * @return Budget
+     */
+    public function store(array $data);
+
+    /**
+     * @param Budget $budget
+     * @param array   $data
+     *
+     * @return Budget
+     */
+    public function update(Budget $budget, array $data);
+
+    /**
+     * Returns all the transaction journals for a limit, possibly limited by a limit repetition.
+     *
+     * @param Budget          $budget
+     * @param LimitRepetition $repetition
+     * @param int              $take
+     *
+     * @return \Illuminate\Pagination\Paginator
+     */
+    public function getJournals(Budget $budget, LimitRepetition $repetition = null, $take = 50);
+
 }