blog/app/Filament/Resources/CategoryResource.php

<?php

namespace App\Filament\Resources;

use App\Filament\Resources\CategoryResource\Pages;
use App\Models\Category;
use Filament\Actions\DeleteAction;
use Filament\Actions\EditAction;
use Filament\Forms\Components\FileUpload;
use Filament\Forms\Components\Textarea;
use Filament\Forms\Components\TextInput;
use Filament\Forms\Components\Toggle;
use Filament\Resources\Resource;
use Filament\Schemas\Components\Section;
use Filament\Schemas\Schema;
use Filament\Tables\Columns\IconColumn;
use Filament\Tables\Columns\ImageColumn;
use Filament\Tables\Columns\TextColumn;
use Filament\Tables\Filters\TernaryFilter;
use Filament\Tables\Table;
use Illuminate\Support\Str;

class CategoryResource extends Resource
{
    protected static ?string $model = Category::class;

    public static function getNavigationIcon(): string|\BackedEnum|null
    {
        return 'heroicon-o-folder';
    }

    public static function getNavigationSort(): ?int
    {
        return 1;
    }

    public static function getNavigationGroup(): ?string
    {
        return '内容管理';
    }

    public static function getModelLabel(): string
    {
        return '分类';
    }

    public static function getPluralModelLabel(): string
    {
        return '分类';
    }

    public static function form(Schema $schema): Schema
    {
        return $schema
            ->components([
                Section::make('基本信息')
                    ->schema([
                        TextInput::make('name')
                            ->label('分类名称')
                            ->required()
                            ->maxLength(255)
                            ->live(onBlur: true)
                            ->afterStateUpdated(fn ($state, callable $set) => $set('slug', Str::slug($state))),

                        TextInput::make('slug')
                            ->label('URL 别名')
                            ->required()
                            ->unique(ignoreRecord: true)
                            ->maxLength(255),

                        Textarea::make('description')
                            ->label('描述')
                            ->rows(3)
                            ->maxLength(500),

                        FileUpload::make('cover_image')
                            ->label('封面图片')
                            ->image()
                            ->directory('categories')
                            ->imageEditor(),
                    ])
                    ->columns(2),

                Section::make('设置')
                    ->schema([
                        TextInput::make('sort_order')
                            ->label('排序')
                            ->numeric()
                            ->default(0),

                        Toggle::make('is_active')
                            ->label('启用')
                            ->default(true),
                    ])
                    ->columns(2),
            ]);
    }

    public static function table(Table $table): Table
    {
        return $table
            ->columns([
                ImageColumn::make('cover_image')
                    ->label('封面')
                    ->circular(),

                TextColumn::make('name')
                    ->label('名称')
                    ->searchable()
                    ->sortable(),

                TextColumn::make('slug')
                    ->label('别名')
                    ->searchable(),

                TextColumn::make('posts_count')
                    ->label('文章数')
                    ->counts('posts')
                    ->sortable(),

                TextColumn::make('sort_order')
                    ->label('排序')
                    ->sortable(),

                IconColumn::make('is_active')
                    ->label('状态')
                    ->boolean(),

                TextColumn::make('created_at')
                    ->label('创建时间')
                    ->dateTime('Y-m-d H:i')
                    ->sortable()
                    ->toggleable(isToggledHiddenByDefault: true),
            ])
            ->defaultSort('sort_order')
            ->filters([
                TernaryFilter::make('is_active')
                    ->label('状态'),
            ])
            ->actions([
                EditAction::make(),
                DeleteAction::make(),
            ])
            ->bulkActions([
                \Filament\Actions\BulkActionGroup::make([
                    \Filament\Actions\DeleteBulkAction::make(),
                ]),
            ]);
    }

    public static function getRelations(): array
    {
        return [
            //
        ];
    }

    public static function getPages(): array
    {
        return [
            'index' => Pages\ListCategories::route('/'),
            'create' => Pages\CreateCategory::route('/create'),
            'edit' => Pages\EditCategory::route('/{record}/edit'),
        ];
    }
}