Add devblog

app/Filament/Resources/ArticleResource.php

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+<?php
+
+namespace App\Filament\Resources;
+
+use App\Filament\Resources\ArticleResource\Actions\PreviewAction;
+use App\Filament\Resources\ArticleResource\Actions\PublishAction;
+use App\Filament\Resources\ArticleResource\Actions\ScheduleAction;
+use App\Filament\Resources\ArticleResource\Actions\UnpublishAction;
+use App\Filament\Resources\ArticleResource\Pages;
+use App\Models\Article;
+use Filament\Forms\Components\MarkdownEditor;
+use Filament\Forms\Components\Textarea;
+use Filament\Forms\Components\TextInput;
+use Filament\Forms\Form;
+use Filament\Forms\Set;
+use Filament\Resources\Resource;
+use Filament\Tables;
+use Filament\Tables\Actions\ActionGroup;
+use Filament\Tables\Columns\TextColumn;
+use Filament\Tables\Table;
+use Illuminate\Contracts\Database\Eloquent\Builder;
+use Illuminate\Support\Str;
+
+class ArticleResource extends Resource
+{
+    protected static ?string $model = Article::class;
+
+    protected static ?string $recordRouteKeyName = 'id';
+
+    protected static ?string $recordTitleAttribute = 'title';
+
+    protected static ?string $navigationIcon = 'heroicon-o-newspaper';
+
+    public static function form(Form $form): Form
+    {
+        return $form
+            ->schema([
+                TextInput::make('title')
+                    ->required()
+                    ->maxLength(255)
+                    ->live(onBlur: true)
+                    ->afterStateUpdated(function (Article $article, Set $set, ?string $state) {
+                        if ($article->isPublished()) {
+                            return;
+                        }
+
+                        $set('slug', Str::slug($state));
+                    }),
+
+                TextInput::make('slug')
+                    ->required()
+                    ->maxLength(255)
+                    ->live(onBlur: true)
+                    ->unique(Article::class, 'slug', ignoreRecord: true)
+                    ->disabled(fn (Article $article) => $article->isPublished())
+                    ->afterStateUpdated(
+                        fn (Set $set, ?string $state) => $set('slug', Str::slug($state))
+                    )
+                    ->helperText(fn (Article $article) => $article->isPublished()
+                        ? 'The slug cannot be changed after the article is published.'
+                        : false
+                    ),
+
+                Textarea::make('excerpt')
+                    ->required()
+                    ->maxLength(400)
+                    ->columnSpanFull(),
+
+                MarkdownEditor::make('content')
+                    ->required()
+                    ->columnSpanFull(),
+            ]);
+    }
+
+    public static function table(Table $table): Table
+    {
+        return $table
+            ->columns([
+                TextColumn::make('title')
+                    ->searchable()
+                    ->sortable(),
+
+                TextColumn::make('excerpt')
+                    ->searchable()
+                    ->limit(50),
+
+                TextColumn::make('author.name')
+                    ->label('Author')
+                    ->searchable()
+                    ->sortable(),
+
+                TextColumn::make('published_at')
+                    ->badge()
+                    ->dateTime('M j, Y H:i')
+                    ->color(fn ($state) => $state && $state->isPast() ? 'success' : 'warning')
+                    ->sortable(query: function (Builder $query, string $direction): Builder {
+                        return $query->orderByRaw("published_at IS NULL {$direction}, published_at {$direction}");
+                    }),
+            ])
+            ->filters([
+                //
+            ])
+            ->actions([
+                ActionGroup::make([
+                    PreviewAction::make('preview'),
+                    Tables\Actions\EditAction::make()->url(fn ($record) => static::getUrl('edit', ['record' => $record->id])),
+                    UnpublishAction::make('unpublish'),
+                    PublishAction::make('publish'),
+                    ScheduleAction::make('schedule'),
+                ]),
+            ])
+            ->bulkActions([
+                Tables\Actions\BulkActionGroup::make([
+                    Tables\Actions\DeleteBulkAction::make(),
+                ]),
+            ])
+            ->defaultSort('published_at', 'desc');
+    }
+
+    public static function getRelations(): array
+    {
+        return [
+            //
+        ];
+    }
+
+    public static function getPages(): array
+    {
+        return [
+            'index' => Pages\ListArticles::route('/'),
+            'create' => Pages\CreateArticle::route('/create'),
+            'edit' => Pages\EditArticle::route('/{record}/edit'),
+        ];
+    }
+}

app/Filament/Resources/ArticleResource/Actions/PreviewAction.php

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+<?php
+
+namespace App\Filament\Resources\ArticleResource\Actions;
+
+use App\Models\Article;
+use Filament\Tables\Actions\Action;
+
+class PreviewAction extends Action
+{
+    protected function setUp(): void
+    {
+        $this
+            ->label('Preview')
+            ->icon('heroicon-o-eye')
+            ->url(fn (Article $article) => route('article', $article))
+            ->openUrlInNewTab();
+    }
+}

app/Filament/Resources/ArticleResource/Actions/PublishAction.php

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+<?php
+
+namespace App\Filament\Resources\ArticleResource\Actions;
+
+use App\Models\Article;
+use Filament\Tables\Actions\Action;
+
+class PublishAction extends Action
+{
+    protected function setUp(): void
+    {
+        $this
+            ->label('Publish')
+            ->icon('heroicon-o-newspaper')
+            ->action(fn (Article $article) => $article->publish())
+            ->visible(fn (Article $article) => ! $article->isPublished())
+            ->requiresConfirmation();
+    }
+}

app/Filament/Resources/ArticleResource/Actions/ScheduleAction.php

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+<?php
+
+namespace App\Filament\Resources\ArticleResource\Actions;
+
+use App\Models\Article;
+use Filament\Forms\Components\DateTimePicker;
+use Filament\Tables\Actions\Action;
+use Illuminate\Support\Carbon;
+
+class ScheduleAction extends Action
+{
+    protected function setUp(): void
+    {
+        $this
+            ->label('Schedule')
+            ->icon('heroicon-o-calendar-days')
+            ->visible(fn (Article $record) => ! $record->isPublished())
+            ->form(fn (Article $article) => [
+                DateTimePicker::make('published_at')
+                    ->label('Published At')
+                    ->displayFormat('M j, Y H:i')
+                    ->seconds(false)
+                    ->default($article->published_at)
+                    ->afterOrEqual('now')
+                    ->required(),
+            ])
+            ->action(function (Article $article, array $data) {
+                $article->publish(Carbon::parse($data['published_at']));
+            })
+            ->requiresConfirmation();
+    }
+}

app/Filament/Resources/ArticleResource/Actions/UnpublishAction.php

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+<?php
+
+namespace App\Filament\Resources\ArticleResource\Actions;
+
+use App\Models\Article;
+use Filament\Tables\Actions\Action;
+
+class UnpublishAction extends Action
+{
+    protected function setUp(): void
+    {
+        $this
+            ->label('Unpublish')
+            ->icon('heroicon-o-archive-box-x-mark')
+            ->action(fn (Article $article) => $article->unpublish())
+            ->visible(fn (Article $article) => $article->isPublished())
+            ->requiresConfirmation();
+    }
+}

app/Filament/Resources/ArticleResource/Pages/CreateArticle.php

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+<?php
+
+namespace App\Filament\Resources\ArticleResource\Pages;
+
+use App\Filament\Resources\ArticleResource;
+use Filament\Resources\Pages\CreateRecord;
+
+class CreateArticle extends CreateRecord
+{
+    protected static string $resource = ArticleResource::class;
+
+    protected function getRedirectUrl(): string
+    {
+        return static::getResource()::getUrl('edit', ['record' => $this->record->id]);
+    }
+}

app/Filament/Resources/ArticleResource/Pages/EditArticle.php

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+<?php
+
+namespace App\Filament\Resources\ArticleResource\Pages;
+
+use App\Filament\Resources\ArticleResource;
+use Filament\Actions;
+use Filament\Resources\Pages\EditRecord;
+
+class EditArticle extends EditRecord
+{
+    protected static string $resource = ArticleResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\DeleteAction::make(),
+        ];
+    }
+}

app/Filament/Resources/ArticleResource/Pages/ListArticles.php

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+<?php
+
+namespace App\Filament\Resources\ArticleResource\Pages;
+
+use App\Filament\Resources\ArticleResource;
+use Filament\Actions;
+use Filament\Resources\Pages\ListRecords;
+
+class ListArticles extends ListRecords
+{
+    protected static string $resource = ArticleResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\CreateAction::make(),
+        ];
+    }
+}

app/Http/Controllers/ShowBlogController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Article;
+
+class ShowBlogController extends Controller
+{
+    public function index()
+    {
+        $articles = Article::query()
+            ->published()
+            ->paginate(6);
+
+        return view('blog', [
+            'articles' => $articles,
+        ]);
+    }
+
+    public function show(Article $article)
+    {
+        abort_unless($article->isPublished() || auth()->user()?->isAdmin(), 404);
+
+        return view('article', [
+            'article' => $article,
+        ]);
+    }
+}