Early View Data Preparation with Laravel View Creators

Laravel View Creators execute immediately when views are instantiated, providing an earlier injection point than View Composers for preparing essential data required throughout the view rendering lifecycle.

View Creators differ from View Composers in their execution timing - they run right after view instantiation rather than just before rendering:

use Illuminate\Support\Facades\View;
use App\View\Creators\UserDataCreator;
 
public function boot()
{
    View::creator('dashboard', UserDataCreator::class);
}

Create the corresponding creator class with dependency injection support through the constructor.

namespace App\View\Creators;
 
use App\Services\UserMetricsService;
use Illuminate\View\View;
 
class UserDataCreator
{
    protected $metricsService;
 
    public function __construct(UserMetricsService $metricsService)
    {
        $this->metricsService = $metricsService;
    }
 
    public function create(View $view)
    {
        $view->with('totalUsers', $this->metricsService->getTotalCount());
    }
}

Here's a comprehensive sidebar widget system that demonstrates View Creator capabilities:

namespace App\View\Creators;
 
use Illuminate\View\View;
use App\Services\WidgetService;
use App\Services\PermissionService;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Cache;
 
class SidebarCreator
{
    protected $widgetService;
    protected $permissionService;
 
    public function __construct(WidgetService $widgetService, PermissionService $permissionService)
    {
        $this->widgetService = $widgetService;
        $this->permissionService = $permissionService;
    }
 
    public function create(View $view)
    {
        $user = Auth::user();
 
        if (!$user) {
            $view->with('sidebarWidgets', []);
            return;
        }
 
        $cacheKey = "sidebar_widgets_user_{$user->id}";
 
        $widgets = Cache::remember($cacheKey, 300, function () use ($user) {
            return $this->buildUserWidgets($user);
        });
 
        $view->with('sidebarWidgets', $widgets);
        $view->with('widgetPermissions', $this->permissionService->getUserWidgetPermissions($user));
    }
 
    private function buildUserWidgets($user)
    {
        $availableWidgets = $this->widgetService->getAvailableWidgets();
        $userPreferences = $user->widget_preferences ?? [];
 
        $widgets = [];
 
        foreach ($availableWidgets as $widget) {
            if (!$this->permissionService->canAccessWidget($user, $widget['key'])) {
                continue;
            }
 
            $isEnabled = $userPreferences[$widget['key']]['enabled'] ?? $widget['default_enabled'];
            $position = $userPreferences[$widget['key']]['position'] ?? $widget['default_position'];
 
            if ($isEnabled) {
                $widgets[] = [
                    'key' => $widget['key'],
                    'title' => $widget['title'],
                    'component' => $widget['component'],
                    'position' => $position,
                    'data' => $this->widgetService->loadWidgetData($widget['key'], $user),
                    'refresh_interval' => $widget['refresh_interval'] ?? 300
                ];
            }
        }
 
        usort($widgets, fn($a, $b) => $a['position'] <=> $b['position']);
 
        return $widgets;
    }
}
 
class AppServiceProvider extends ServiceProvider
{
    public function boot()
    {
        View::creator('layouts.main', SidebarCreator::class);
        View::creator('layouts.dashboard', SidebarCreator::class);
    }
}
 
class WidgetService
{
    public function getAvailableWidgets()
    {
        return [
            [
                'key' => 'recent_activity',
                'title' => 'Recent Activity',
                'component' => 'widgets.recent-activity',
                'default_enabled' => true,
                'default_position' => 1,
                'refresh_interval' => 60
            ],
            [
                'key' => 'performance_metrics',
                'title' => 'Performance Metrics',
                'component' => 'widgets.performance-metrics',
                'default_enabled' => false,
                'default_position' => 2,
                'refresh_interval' => 300
            ],
            [
                'key' => 'notifications_summary',
                'title' => 'Notifications',
                'component' => 'widgets.notifications-summary',
                'default_enabled' => true,
                'default_position' => 3,
                'refresh_interval' => 30
            ]
        ];
    }
 
    public function loadWidgetData($widgetKey, $user)
    {
        return match($widgetKey) {
            'recent_activity' => $this->getRecentActivity($user),
            'performance_metrics' => $this->getPerformanceMetrics($user),
            'notifications_summary' => $this->getNotificationsSummary($user),
            default => []
        };
    }
 
    private function getRecentActivity($user)
    {
        return $user->activities()
            ->latest()
            ->limit(5)
            ->with('subject')
            ->get()
            ->map(fn($activity) => [
                'description' => $activity->description,
                'created_at' => $activity->created_at->diffForHumans(),
                'subject_type' => class_basename($activity->subject_type),
                'icon' => $this->getActivityIcon($activity->description)
            ]);
    }
 
    private function getPerformanceMetrics($user)
    {
        return [
            'tasks_completed_today' => $user->tasks()->whereDate('completed_at', today())->count(),
            'average_completion_time' => $user->tasks()->avg('completion_time_minutes'),
            'productivity_score' => $this->calculateProductivityScore($user),
            'weekly_trend' => $this->getWeeklyTrend($user)
        ];
    }
 
    private function getNotificationsSummary($user)
    {
        $unreadCount = $user->unreadNotifications()->count();
        $priorityCount = $user->unreadNotifications()->where('data->priority', 'high')->count();
 
        return [
            'unread_total' => $unreadCount,
            'high_priority' => $priorityCount,
            'latest_notifications' => $user->notifications()
                ->limit(3)
                ->get()
                ->map(fn($notification) => [
                    'title' => $notification->data['title'] ?? 'Notification',
                    'time' => $notification->created_at->diffForHumans(),
                    'read' => !is_null($notification->read_at)
                ])
        ];
    }
}

View Creators excel at preparing foundational data that subsequent view logic depends on, optimizing the rendering pipeline and ensuring consistent data availability across your Laravel application.