<?php
/*
* You have several files:
* - routes.php
* - Department model
* - Employee model
* - Employee Repository Interface
* - Employee Repository
* - Custom Service Provider
* - EmployeeController
* Find all the problems in the code comments and solve them.
*/
// routes.php
Route::get('/departments/{id}/employees', [EmployeeController::class, 'getByDepartment']);
// The department has no employee relations
class Department extends Model{
protected $table = 'departments';
}
// Employees have a relationship with the department
class Employee extends Model{
protected $table = 'employees';
public function department(): BelongsTo{
return $this->belongsTo(Deparment::class, 'department_id');
}
}
interface EmployeeRepositoryInterface{
public function getManyByDepartment(): Collection;
}
class EmployeeRepository implements EmployeeRepositoryInterface{
public function query(): Builder{
return Employee::query();
}
// 3. Third issue. How do you get all the employees by the department?
public function getManyByDepartment(Department $department): Collection {
// some code...
}
}
class CustomServiceProvider extends ServiceProvider{
public function register(): void{
// some code...
}
public function boot(): void{
// some code
}
}
class EmployeeController extends Controller{
// 1. First issue. Service Container cannot reach EmployeeRepositoryInterface.
// What do we need to do to get EmployeeRepository through EmployeeRepositoryInterface?
// Service Container error: Target EmployeeRepositoryInterface is not instantiable
public function getByDepartment(
Request $request,
int $departmentId,
EmployeeRepositoryInterface $employeeRepository
): JsonResponse{
// 2. Second issue. How do you get a department by id?
$department = Department::query();
return response()->json($employeeRepository->getManyByDepartment($department));
}
}
?>
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