Laravel：仅将主要实体绑定到我的会话中

Question

Using Laravel 5.4

I have following entities in my app:

Employees, Contractors, Clients.

I have restfull routes for each like so:

/employees/1
/contractors/1
/clients/1
..

I have the need to get the current entity based on the routes, so i did the following in my RouteServiceProvider:

Route::bind('employee', function ($value) {
    $employee = Employee::findOrFail($value);
    session(['activeEntity' => $employee]);
    return $employee;
});

Route::bind('client', function ($value) {
    $client = Client::findOrFail($value);
    session(['activeEntity' => $client]);
    return $client;
});

Route::bind('contractor', function ($value) {
    $contractor = Contractor::findOrFail($value);
    session(['activeEntity' => $contractor]);
    return $contractor;
});

This works fine for all the top-level routes. But i also have following routes:

/clients/1/employees/1

in this case i would like the activeEntity to be Client, but currently the active entity in the session will be set to Employee

How would i prevent that from happening? And bind the correct entity to the session ?

Answer 1

I would suggest to handle it via middleware. You may create SetActiveEntityMiddleware with handle() method like this:

public function handle($request, Closure $next, $guard = null)
{
    if ($request->is('employees/*')) {
        $id = $request->route()->parameter('employee');

        $employee = Employee::findOrFail($id);

        session(['activeEntity' => $employee]);
    }

    if ($request->is('clients/*')) {
        $id = $request->route()->parameter('client');

        $client = Client::findOrFail($id);

        session(['activeEntity' => $client]);
    }

    if ($request->is('contractors/*')) {
        $id = $request->route()->parameter('contractor');

        $contractor = Contractor::findOrFail($id);

        session(['activeEntity' => $contractor]);
    }

    return $next($request);
}

Here is Laravel Middleware Docs.