upgrade to filament v4

app/Filament/Resources/Discounts/DiscountResource.php

@@ -1,12 +1,21 @@
 <?php
 
-namespace App\Filament\Resources;
+namespace App\Filament\Resources\Discounts;
 
+use Filament\Schemas\Schema;
+use Filament\Forms\Components\TextInput;
+use Filament\Forms\Components\Hidden;
+use Filament\Tables\Columns\TextColumn;
+use Filament\Actions\EditAction;
+use Filament\Actions\BulkActionGroup;
+use Filament\Actions\DeleteBulkAction;
+use App\Filament\Resources\Discounts\Pages\ListDiscounts;
+use App\Filament\Resources\Discounts\Pages\CreateDiscount;
+use App\Filament\Resources\Discounts\Pages\EditDiscount;
 use App\Filament\Resources\DiscountResource\Pages;
 use App\Filament\Resources\DiscountResource\RelationManagers;
 use App\Models\Discount;
 use Filament\Forms;
-use Filament\Forms\Form;
 use Filament\Forms\Get;
 use Filament\Resources\Resource;
 use Filament\Tables;
@@ -18,18 +27,18 @@ class DiscountResource extends Resource
 {
     protected static ?string $model = Discount::class;
 
-    protected static ?string $navigationIcon = 'heroicon-o-rectangle-stack';
+    protected static string | \BackedEnum | null $navigationIcon = 'heroicon-o-rectangle-stack';
 
     protected static bool $shouldRegisterNavigation = false;
 
-    public static function form(Form $form): Form
+    public static function form(Schema $schema): Schema
     {
-        return $form
-            ->schema([
-                Forms\Components\TextInput::make('discount')
+        return $schema
+            ->components([
+                TextInput::make('discount')
                     ->label('Discount')
                     ->required(),
-                Forms\Components\Hidden::make('client_id')
+                Hidden::make('client_id')
                     ->default(fn () => request()->client_id),
             ]);
     }
@@ -38,19 +47,19 @@ class DiscountResource extends Resource
     {
         return $table
             ->columns([
-                Tables\Columns\TextColumn::make('discount')
+                TextColumn::make('discount')
                     ->label('Discount')
                     ->searchable(),
             ])
             ->filters([
                 //  
             ])
-            ->actions([
-                Tables\Actions\EditAction::make(),
+            ->recordActions([
+                EditAction::make(),
             ])
-            ->bulkActions([
-                Tables\Actions\BulkActionGroup::make([
-                    Tables\Actions\DeleteBulkAction::make(),
+            ->toolbarActions([
+                BulkActionGroup::make([
+                    DeleteBulkAction::make(),
                 ]),
             ]);
     }
@@ -65,9 +74,9 @@ class DiscountResource extends Resource
     public static function getPages(): array
     {
         return [
-            'index' => Pages\ListDiscounts::route('/'),
-            'create' => Pages\CreateDiscount::route('/create'),
-            'edit' => Pages\EditDiscount::route('/{record}/edit'),
+            'index' => ListDiscounts::route('/'),
+            'create' => CreateDiscount::route('/create'),
+            'edit' => EditDiscount::route('/{record}/edit'),
         ];
     }
 }