Teams permissions

When enabled, teams permissions offers you flexible control for a variety of scenarios. The idea behind teams permissions is inspired by the default permission implementation of Laratrust.

##Enabling Teams Permissions Feature

NOTE: These configuration changes must be made before performing the migration when first installing the package.

If you have already run the migration and want to upgrade your implementation, you can run the artisan console command php artisan permission:setup-teams, to create a new migration file named xxxx_xx_xx_xx_add_teams_fields.php and then run php artisan migrate to upgrade your database tables.

Teams permissions can be enabled in the permission config file:

// config/permission.php
'teams' => true,

Also, if you want to use a custom foreign key for teams you set it in the permission config file:

// config/permission.php
'team_foreign_key' => 'custom_team_id',

##Working with Teams Permissions

After implementing a solution for selecting a team on the authentication process (for example, setting the team_id of the currently selected team on the session: session(['team_id' => $team->team_id]); ), we can set global team_id from anywhere, but works better if you create a Middleware.

Example Team Middleware:

namespace App\Http\Middleware;

class TeamsPermission
{
    
    public function handle($request, \Closure $next){
        if(!empty(auth()->user())){
            // session value set on login
            setPermissionsTeamId(session('team_id'));
        }
        // other custom ways to get team_id
        /*if(!empty(auth('api')->user())){
            // `getTeamIdFromToken()` example of custom method for getting the set team_id 
            setPermissionsTeamId(auth('api')->user()->getTeamIdFromToken());
        }*/
        
        return $next($request);
    }
}

YOU MUST ALSO set the $middlewarePriority array in app/Http/Kernel.php to include your custom middleware before the SubstituteBindings middleware, else you may get 404 Not Found responses when a 403 Not Authorized response might be expected.

##Roles Creating

When creating a role you can pass the team_id as an optional parameter

// with null team_id it creates a global role; global roles can be assigned to any team and they are unique
Role::create(['name' => 'writer', 'team_id' => null]);

// creates a role with team_id = 1; team roles can have the same name on different teams
Role::create(['name' => 'reader', 'team_id' => 1]);

// creating a role without team_id makes the role take the default global team_id
Role::create(['name' => 'reviewer']);

##Roles/Permissions Assignment & Removal

The role/permission assignment and removal for teams are the same as without teams, but they take the global team_id which is set on login.

##Changing The Active Team ID

While your middleware will set a user's team_id upon login, you may later need to set it to another team for various reasons. The two most common reasons are these:

##Switching Teams After Login

If your application allows the user to switch between various teams which they belong to, you can activate the roles/permissions for that team by calling setPermissionsTeamId($new_team_id) and unsetting relations as described below.

##Administrating Team Details

You may have created a User-Manager page where you can view the roles/permissions of users on certain teams. For managing that user in each team they belong to, you must also use setPermissionsTeamId($new_team_id) to cause lookups to relate to that new team, and unset prior relations as described below.

##Querying Roles/Permissions for Other Teams

Whenever you switch the active team_id using setPermissionsTeamId(), you need to unset the user's/model's roles and permissions relations before querying what roles/permissions that user has ($user->roles, etc) and before calling any authorization functions (can(), hasPermissionTo(), hasRole(), etc).

Example:

// set active global team_id
setPermissionsTeamId($new_team_id);

// $user = Auth::user();

// unset cached model relations so new team relations will get reloaded
$user->unsetRelation('roles')->unsetRelation('permissions');

// Now you can check:
$roles = $user->roles;
$hasRole = $user->hasRole('my_role');
$user->hasPermissionTo('foo');
$user->can('bar');
// etc

##Defining a Super-Admin on Teams

Global roles can be assigned to different teams, and team_id (which is the primary key of the relationships) is always required.

If you want a "Super Admin" global role for a user, when you create a new team you must assign it to your user. Example:

namespace App\Models;

class YourTeamModel extends \Illuminate\Database\Eloquent\Model
{
    // ...
    public static function boot()
    {
        parent::boot();

        // here assign this team to a global user with global default role
        self::created(function ($model) {
           // temporary: get session team_id for restore at end
           $session_team_id = getPermissionsTeamId();
           // set actual new team_id to package instance
           setPermissionsTeamId($model);
           // get the admin user and assign roles/permissions on new team model
           User::find('your_user_id')->assignRole('Super Admin');
           // restore session team_id to package instance using temporary value stored above
           setPermissionsTeamId($session_team_id);
        });
    }
    // ...
}