country flags added and country switcher added

app/Http/Livewire/Frontend/SearchCities.php

@@ -8,6 +8,24 @@ use Livewire\Component;
 class SearchCities extends Component
 {
     public Country $country;
+    public string $c = 'de';
+
+    public function rules()
+    {
+        return [
+            'c' => 'required',
+        ];
+    }
+
+    public function mount()
+    {
+        $this->c = $this->country->code;
+    }
+
+    public function updatedC($value)
+    {
+        return to_route('search.cities', ['country' => $value]);
+    }
 
     public function render()
     {

app/Http/Livewire/Tables/CityTable.php

@@ -3,11 +3,14 @@
 namespace App\Http\Livewire\Tables;
 
 use App\Models\City;
+use Illuminate\Database\Eloquent\Builder;
 use Rappasoft\LaravelLivewireTables\DataTableComponent;
 use Rappasoft\LaravelLivewireTables\Views\Column;
 
 class CityTable extends DataTableComponent
 {
+    public string $country;
+
     protected $model = City::class;
 
     public function configure(): void
@@ -23,4 +26,10 @@ class CityTable extends DataTableComponent
                   ->searchable(),
         ];
     }
+
+    public function builder(): Builder
+    {
+        return City::query()
+                   ->whereHas('country', fn($query) => $query->where('code', $this->country));
+    }
 }