Clean up repository.

app/Generator/Chart/PiggyBank/ChartJsPiggyBankChartGenerator.php

@@ -36,9 +36,9 @@ class ChartJsPiggyBankChartGenerator implements PiggyBankChartGeneratorInterface
             ],
         ];
         $sum  = '0';
-        foreach ($set as $entry) {
+        foreach ($set as $key => $value) {
-            $date                          = new Carbon($entry->date);
+            $date                          = new Carbon($key);
-            $sum                           = bcadd($sum, $entry->sum);
+            $sum                           = bcadd($sum, $value);
             $data['labels'][]              = $date->formatLocalized($format);
             $data['datasets'][0]['data'][] = round($sum, 2);
         }

app/Http/Controllers/Chart/PiggyBankController.php

@@ -5,8 +5,10 @@ namespace FireflyIII\Http\Controllers\Chart;
 
 use FireflyIII\Http\Controllers\Controller;
 use FireflyIII\Models\PiggyBank;
+use FireflyIII\Models\PiggyBankEvent;
 use FireflyIII\Repositories\PiggyBank\PiggyBankRepositoryInterface;
 use FireflyIII\Support\CacheProperties;
+use Illuminate\Support\Collection;
 use Response;
 
 
@@ -49,8 +51,20 @@ class PiggyBankController extends Controller
             return Response::json($cache->get());
         }
 
-        $set  = $repository->getEventSummarySet($piggyBank);
+        $set        = $repository->getEvents($piggyBank);
-        $data = $this->generator->history($set);
+        $set        = $set->reverse();
+        $collection = [];
+        /** @var PiggyBankEvent $entry */
+        foreach ($set as $entry) {
+            $date   = $entry->date->format('Y-m-d');
+            $amount = $entry->amount;
+            if (isset($collection[$date])) {
+                $amount = bcadd($amount, $collection[$date]);
+            }
+            $collection[$date] = $amount;
+        }
+
+        $data = $this->generator->history(new Collection($collection));
         $cache->store($data);
 
         return Response::json($data);

app/Repositories/PiggyBank/PiggyBankRepository.php

@@ -22,7 +22,7 @@ class PiggyBankRepository implements PiggyBankRepositoryInterface
     private $user;
 
     /**
-     * BillRepository constructor.
+     * PiggyBankRepository constructor.
      *
      * @param User $user
      */
@@ -48,6 +48,7 @@ class PiggyBankRepository implements PiggyBankRepositoryInterface
      * @param PiggyBank $piggyBank
      *
      * @return bool
+     * @throws \Exception
      */
     public function destroy(PiggyBank $piggyBank): bool
     {
@@ -56,18 +57,6 @@ class PiggyBankRepository implements PiggyBankRepositoryInterface
         return true;
     }
 
-    /**
-     * @param PiggyBank $piggyBank
-     *
-     * @return Collection
-     */
-    public function getEventSummarySet(PiggyBank $piggyBank): Collection
-    {
-        $var = DB::table('piggy_bank_events')->where('piggy_bank_id', $piggyBank->id)->groupBy('date')->get(['date', DB::raw('SUM(`amount`) AS `sum`')]);
-
-        return new Collection($var);
-    }
-
     /**
      * @param PiggyBank $piggyBank
      *

app/Repositories/PiggyBank/PiggyBankRepositoryInterface.php

@@ -16,6 +16,8 @@ interface PiggyBankRepositoryInterface
 {
 
     /**
+     * Create a new event.
+     *
      * @param PiggyBank $piggyBank
      * @param string    $amount
      *
@@ -24,6 +26,8 @@ interface PiggyBankRepositoryInterface
     public function createEvent(PiggyBank $piggyBank, string $amount): PiggyBankEvent;
 
     /**
+     * Destroy piggy bank.
+     *
      * @param PiggyBank $piggyBank
      *
      * @return bool
@@ -31,13 +35,8 @@ interface PiggyBankRepositoryInterface
     public function destroy(PiggyBank $piggyBank): bool;
 
     /**
-     * @param PiggyBank $piggyBank
+     * Get all events.
      *
-     * @return Collection
-     */
-    public function getEventSummarySet(PiggyBank $piggyBank) : Collection;
-
-    /**
      * @param PiggyBank $piggyBank
      *
      * @return Collection
@@ -45,11 +44,15 @@ interface PiggyBankRepositoryInterface
     public function getEvents(PiggyBank $piggyBank) : Collection;
 
     /**
+     * Highest order of all piggy banks.
+     *
      * @return int
      */
     public function getMaxOrder(): int;
 
     /**
+     * Return all piggy banks.
+     *
      * @return Collection
      */
     public function getPiggyBanks() : Collection;
@@ -62,8 +65,7 @@ interface PiggyBankRepositoryInterface
     public function reset(): bool;
 
     /**
-     *
+     * Set specific piggy bank to specific order.
-     * set id of piggy bank.
      *
      * @param int $piggyBankId
      * @param int $order
@@ -74,6 +76,8 @@ interface PiggyBankRepositoryInterface
 
 
     /**
+     * Store new piggy bank.
+     *
      * @param array $data
      *
      * @return PiggyBank
@@ -81,6 +85,8 @@ interface PiggyBankRepositoryInterface
     public function store(array $data): PiggyBank;
 
     /**
+     * Update existing piggy bank.
+     * 
      * @param PiggyBank $piggyBank
      * @param array     $data
      *