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<?php |
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declare(strict_types = 1); |
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namespace App\Policies; |
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use App\User; |
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use Illuminate\Auth\Access\HandlesAuthorization; |
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class UserPolicy |
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{ |
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use HandlesAuthorization; |
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/** |
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* Determine whether the user can view the model. |
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* |
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* @param \App\User $user |
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* @param \App\User $model |
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* @return bool |
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*/ |
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public function view(User $user, User $model) : bool |
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{ |
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// Any users can view their own data. |
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if ($user->id === $model->id) { |
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return true; |
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} |
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$return = null; |
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switch ($user->role) { |
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case User::ROLE_ADMINISTRATOR; |
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// Administrators can view any users. |
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$return = true; |
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break; |
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case User::ROLE_VIEWER; |
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// Viewers can view viewers and students. |
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$return = in_array($model->role, [User::ROLE_STUDENT, User::ROLE_VIEWER]); |
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break; |
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default: |
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$return = false; |
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} |
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return $return; |
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} |
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/** |
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* Determine whether the user can view all models with student role. |
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* |
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* @param \App\User $user |
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* @return bool |
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*/ |
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public function viewStudents(User $user) : bool |
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{ |
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return |
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$user->role === User::ROLE_VIEWER || |
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$user->role === User::ROLE_ADMINISTRATOR; |
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} |
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/** |
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* Determine whether the user can create models with viewer role. |
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* |
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* @param \App\User $user |
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* @return bool |
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*/ |
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public function createViewer(User $user) : bool |
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{ |
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return |
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$user->role === User::ROLE_VIEWER || |
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$user->role === User::ROLE_ADMINISTRATOR; |
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} |
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/** |
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* Determine whether the user can view all models with viewer role. |
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* |
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* @param \App\User $user |
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* @return bool |
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*/ |
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public function viewViewers(User $user) : bool |
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{ |
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return |
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$user->role === User::ROLE_VIEWER || |
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$user->role === User::ROLE_ADMINISTRATOR; |
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} |
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/** |
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* Determine whether the user can create models with administrator role. |
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* |
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* @param \App\User $user |
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* @return bool |
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*/ |
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public function createAdministrator(User $user) : bool |
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{ |
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return $user->role === User::ROLE_ADMINISTRATOR; |
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} |
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/** |
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* Determine whether the user can view all models with administrator role. |
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* |
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* @param \App\User $user |
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* @return bool |
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*/ |
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public function viewAdministrators(User $user) : bool |
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{ |
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return $user->role === User::ROLE_ADMINISTRATOR; |
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} |
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/** |
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* Determine whether the user can update the model. |
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* |
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* @param \App\User $user |
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* @param \App\User $model |
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* @return bool |
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*/ |
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public function update(User $user, User $model) : bool |
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{ |
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// A user can only update its own user |
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// or be modified by an administrator. |
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return |
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$user->role === User::ROLE_ADMINISTRATOR || |
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$user->id === $model->id; |
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} |
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/** |
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* Determine whether the user can delete the model. |
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* |
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* @param \App\User $user |
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* @param \App\User $model |
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* @return bool |
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*/ |
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public function delete(User $user, User $model) : bool |
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{ |
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$return = null; |
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switch ($model->role) { |
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case User::ROLE_ADMINISTRATOR; |
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// Administrators can be deleted only by other administrators. |
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$return = |
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$user->role === User::ROLE_ADMINISTRATOR && |
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$user->id !== $model->id; |
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break; |
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case User::ROLE_VIEWER; |
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// Viewers can be deleted only by administrators. |
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$return = $user->role === User::ROLE_ADMINISTRATOR; |
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break; |
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case User::ROLE_STUDENT; |
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// Students can be deleted only by viewer and administrators. |
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$return = in_array($user->role, [User::ROLE_ADMINISTRATOR, User::ROLE_VIEWER]); |
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break; |
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157
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default: |
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$return = false; |
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160
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} |
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162
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return $return; |
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163
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164
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} |
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165
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} |
|
166
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francescozanoni /
clqei
