This fixes what turns out to be an incredibly inaccurate chart.

app/Http/Controllers/Chart/BudgetController.php

@@ -65,20 +65,17 @@ class BudgetController extends Controller
         $last    = Navigation::endOfX($last, $range, $final);
         $entries = new Collection;
         // get all expenses:
-        $set = $repository->getExpensesPerMonth($budget, $first, $last);
+        $spentArray = $repository->spentPerDay($budget, $first, $last);
 
         while ($first < $last) {
-            $monthFormatted = $first->format('Y-m');
 
-            $filtered = $set->filter(
+            // periodspecific dates:
-                function (Budget $obj) use ($monthFormatted) {
+            $currentStart = Navigation::startOfPeriod($first, $range);
-                    return $obj->dateFormatted == $monthFormatted;
+            $currentEnd   = Navigation::endOfPeriod($first, $range);
-                }
+            $spent        = $this->getSumOfRange($currentStart, $currentEnd, $spentArray);
-            );
+            $entry        = [$first, ($spent * -1)];
-            $spent    = is_null($filtered->first()) ? '0' : $filtered->first()->monthlyAmount;
-
-            $entries->push([$first, round(($spent * -1), 2)]);
 
+            $entries->push($entry);
             $first = Navigation::addPeriod($first, $range, 0);
         }
 

app/Repositories/Budget/BudgetRepository.php

@@ -370,39 +370,6 @@ class BudgetRepository extends ComponentRepository implements BudgetRepositoryIn
         return $set;
     }
 
-    /**
-     * Returns the expenses for this budget grouped per month, with the date
-     * in "dateFormatted" (a string, not a Carbon) and the amount in "dailyAmount".
-     *
-     * @param Budget $budget
-     * @param Carbon $start
-     * @param Carbon $end
-     *
-     * @return Collection
-     */
-    public function getExpensesPerMonth(Budget $budget, Carbon $start, Carbon $end)
-    {
-        $set = Auth::user()->budgets()
-                   ->leftJoin('budget_transaction_journal', 'budget_transaction_journal.budget_id', '=', 'budgets.id')
-                   ->leftJoin('transaction_journals', 'budget_transaction_journal.transaction_journal_id', '=', 'transaction_journals.id')
-                   ->leftJoin('transactions', 'transaction_journals.id', '=', 'transactions.transaction_journal_id')
-                   ->where('transaction_journals.date', '>=', $start->format('Y-m-d'))
-                   ->where('transaction_journals.date', '<=', $end->format('Y-m-d'))
-                   ->whereNull('transaction_journals.deleted_at')
-                   ->where('budgets.id', $budget->id)
-                   ->where('transactions.amount', '<', 0)
-                   ->groupBy('dateFormatted')
-                   ->orderBy('transaction_journals.date')
-                   ->get(
-                       [
-                           DB::raw('DATE_FORMAT(`transaction_journals`.`date`, "%Y-%m") AS `dateFormatted`'),
-                           DB::raw('SUM(`transactions`.`amount`) as `monthlyAmount`'),
-                       ]
-                   );
-
-        return $set;
-    }
-
     /**
      * @param Budget $budget
      *

app/Repositories/Budget/BudgetRepositoryInterface.php

@@ -136,18 +136,6 @@ interface BudgetRepositoryInterface
      */
     public function getExpensesPerDay(Budget $budget, Carbon $start, Carbon $end);
 
-    /**
-     * Returns the expenses for this budget grouped per month, with the date
-     * in "date" (a string, not a Carbon) and the amount in "dailyAmount".
-     *
-     * @param Budget $budget
-     * @param Carbon $start
-     * @param Carbon $end
-     *
-     * @return Collection
-     */
-    public function getExpensesPerMonth(Budget $budget, Carbon $start, Carbon $end);
-
     /**
      * @param Budget $budget
      *