Fix BadMethodCallException and remaining PostgreSQL issues

app/Http/Controllers/Admin/DashboardController.php

@@ -34,8 +34,9 @@ public function getDashboardData()
     public function yearlySubscriptions()
     {
         $subscriptions = PlanSubscribe::whereYear('created_at', request('year') ?? date('Y'))
-                            ->selectRaw("TO_CHAR(created_at, 'Month') as month, SUM(price) as total_amount")
-                            ->groupBy('month')
+                            ->selectRaw("TO_CHAR(created_at, 'FMMonth') as month, SUM(price) as total_amount")
+                            ->groupBy(DB::raw("TO_CHAR(created_at, 'FMMonth')"))
+                            ->orderBy(DB::raw("MIN(created_at)"))
                             ->get();
 
         return response()->json($subscriptions);

app/Http/Controllers/Api/StatisticsController.php

@@ -118,7 +118,7 @@ public function dashboard()
         $sales_data = Sale::selectRaw("TO_CHAR(created_at, '$dateFormatSQL') as date, SUM(\"totalAmount\") as amount")
             ->where('business_id', $business_id)
             ->whereBetween('created_at', [$start, $end])
-            ->groupBy('date')
+            ->groupBy(DB::raw("TO_CHAR(created_at, '$dateFormatSQL')"))
             ->orderBy('date')
             ->get()
             ->map(function ($item) {
@@ -131,7 +131,7 @@ public function dashboard()
         $purchase_data = Purchase::selectRaw("TO_CHAR(created_at, '$dateFormatSQL') as date, SUM(\"totalAmount\") as amount")
             ->where('business_id', $business_id)
             ->whereBetween('created_at', [$start, $end])
-            ->groupBy('date')
+            ->groupBy(DB::raw("TO_CHAR(created_at, '$dateFormatSQL')"))
             ->orderBy('date')
             ->get()
             ->map(function ($item) {

app/Models/Party.php

@@ -84,6 +84,17 @@ public function dueCollect()
     {
         return $this->hasOne(DueCollect::class);
     }
+    public function dueForBranch($branchId = null)
+    {
+        $query = $this->type === 'Supplier' ? $this->purchases_dues() : $this->sales_dues();
+
+        if ($branchId) {
+            $query->where('branch_id', $branchId);
+        }
+
+        return $query->sum('dueAmount');
+    }
+
     /**
      * The attributes that should be cast to native types.
      *