math_cms/app/Filament/Resources/TeacherResource/Pages/ListTeachers.php

<?php

namespace App\Filament\Resources\TeacherResource\Pages;
use Illuminate\Database\Eloquent\Builder;

use App\Filament\Resources\TeacherResource;
use Filament\Actions;
use Filament\Resources\Pages\ListRecords;

class ListTeachers extends ListRecords
{
    protected static string $resource = TeacherResource::class;

    protected function getHeaderActions(): array
    {
        return [
            Actions\CreateAction::make()
                ->label('创建老师')
                ->icon('heroicon-o-plus')
                ->size('lg')
                ->color('primary'),
        ];
    }

    public function getTitle(): string
    {
        return '教师管理';
    }

    public function getBreadcrumbs(): array
    {
        return [
            static::getResource()::getUrl('index') => '教师管理',
        ];
    }

    protected function getHeaderWidgets(): array
    {
        return [];
    }

    public function getHeading(): string
    {
        return '教师管理';
    }

    public function getSubheading(): string
    {
        $count = \App\Models\Teacher::count();
        return "共 {$count} 位教师";
    }
}