Some small refactoring

1. A small refactor to app/Exceptions/Handler.php
2. Try count 6 different metrics at once to save some database
   roundtrips.

Signed-off-by: Xiaoguang Sun <sunxiaoguang@gmail.com>

app/Exceptions/Handler.php

@@ -50,17 +50,11 @@ public function render($request, Throwable  $exception)
     {
         // return parent::render($request, $exception);
         if ($exception instanceof HttpExceptionInterface) {
-            if (env('APP_ENV') === 'production' && $exception->getCode() == 403) {
-                return response()->view('errors.403', [], 403);
-            }
-            if (env('APP_ENV') === 'production' && $exception->getCode() == 404) {
-                return response()->view('errors.404', [], 404);
-            }
-            if (env('APP_ENV') === 'production' && $exception->getCode() == 419) {
-                return response()->view('errors.419', [], 419);
-            }
-            if (env('APP_ENV') === 'production' && $exception->getCode() == 500) {
-                return response()->view('errors.500', [], 500);
+            if (env('APP_ENV') === 'production') {
+                $code = $exception->getCode();
+                if (in_array($code, [403, 404, 419, 500])) {
+                    return response()->view("errors.{$code}", [], $code);
+                }
             }
         }
 

app/Http/Controllers/HomeController.php

@@ -30,13 +30,18 @@ public function index()
         $userRoleCount = $user->getRoleNames()->count();
 
         // Display total customers, suppliers, quotes, orders, NC 
-        $data['customers_count'] = DB::table('companies')->where('statu_customer', '=', '2')->count();
-        $data['suppliers_count'] = DB::table('companies')->where('statu_supplier', '=', '2')->count();
-        $data['quotes_count'] = DB::table('quotes')->count();
-        $data['orders_count'] = DB::table('orders')->count();
-        $data['quality_non_conformities_count'] = DB::table('quality_non_conformities')->count();
-        $data['user_count'] = DB::table('users')->count();
-
+        $all_count = DB::table('users')->selectRaw("'user_count' as type, count(*) as count")
+            ->unionAll(DB::table('companies')->selectRaw("'customers_count' as type, count(*) as count")->where('statu_customer', '=', '2'))
+            ->unionAll(DB::table('companies')->selectRaw("'suppliers_count' as type, count(*) as count")->where('statu_supplier', '=', '2'))
+            ->unionAll(DB::table('quotes')->selectRaw("'quotes_count' as type, count(*) as count"))
+            ->unionAll(DB::table('orders')->selectRaw("'orders_count' as type, count(*) as count"))
+            ->unionAll(DB::table('quality_non_conformities')->selectRaw("'quality_non_conformities_count' as type, count(*) as count"))
+            ->get();
+        $data = $all_count->reduce(function($data, $count) {
+            $data[$count->type] = $count->count;
+            return $data;
+        }, []);
+
         $Announcement = Announcements::latest()->first();
 
         //Estimated Budgets data for chart