fix devops error

app/Repositories/Core/Stat.php

@@ -42,7 +42,7 @@ class Stat
 
     public static function getStatsbyMultiVar($var, $var_option = '')
     {
-        if (empty($var_option)) {
+        if ($var_option) {
             $var_option = $var;
         }
         $options = self::getOption($var_option);
@@ -52,39 +52,34 @@ class Stat
 
     public static function getCountByPeriod($var, $begin, $end)
     {
-        $count = self::getModel()
+        return self::getModel()
             ->whereBetween($var, $begin, $end)
             ->count();
-
-        return $count;
     }
 
     public static function getCountbyVar($var)
     {
         $db = self::getInstance()->app->db;
-        $data = self::getModel()
-            ->select($db::raw("count(id) as y, $var as name"))
+
+        return self::getModel()
+            ->select($db::raw("count(id) as y, {$var} as name"))
             ->groupBy($var)
             ->get();
-
-        // var_Debug::message($data);
-        return $data;
     }
 
     public static function getStatsbyOptions($var, $var_option = '')
     {
-        if (empty($var_option)) {
+        if ($var_option ?? false) {
             $var_option = $var;
         }
         $options = self::getInstance()->controller->getOption($var_option);
         $nb = self::getCountbyOption($var);
-        // var_Debug::message($nb);
+        $data = [];
         foreach ($options as $key => $value) {
             $y = (int) $nb[$key];
             $data[] = ['y' => $y, 'name' => $value];
         }
 
-        // var_Debug::message($data);
         return $data;
     }
 
@@ -108,6 +103,7 @@ class Stat
 
     public static function getStatsbyMultiOptions($var, $options)
     {
+        $data = [];
         foreach ($options as $key => $value) {
             $nb = self::getCountbyBin($var, $key);
             $data[] = ['y' => $nb, 'name' => $value];
@@ -119,11 +115,8 @@ class Stat
     public static function getCountbyBin($var, $value)
     {
         $bit = pow(2, $value);
-        $count = self::getModel()
-            ->where($var, '&', $bit)
-            ->count();
 
-        return $count;
+        return self::getModel()->where($var, '&', $bit)->count();
     }
 
     public static function getStatsbyPeriod($begin = '', $end = '', $period = 'days')