Add LOA feature, improve components

app/Policies/AbsencePolicy.php

@@ -0,0 +1,82 @@
+<?php
+
+namespace App\Policies;
+
+use App\Absence;
+use App\Response;
+use App\User;
+use Illuminate\Auth\Access\HandlesAuthorization;
+
+class AbsencePolicy
+{
+    use HandlesAuthorization;
+
+    /**
+     * Determine whether the user can view any models.
+     *
+     * @param  \App\User  $user
+     * @return \Illuminate\Auth\Access\Response|bool
+     */
+    public function viewAny(User $user)
+    {
+        if ($user->hasPermissionTo('admin.viewAllAbsences'))
+        {
+            return \Illuminate\Auth\Access\Response::allow();
+        }
+
+        return \Illuminate\Auth\Access\Response::deny('Forbidden');
+    }
+
+    /**
+     * Determine whether the user can view the model.
+     *
+     * @param  \App\User  $user
+     * @param  \App\Absence  $absence
+     * @return \Illuminate\Auth\Access\Response|bool
+     */
+    public function view(User $user, Absence $absence)
+    {
+        if ($user->hasPermissionTo('reviewer.viewAbsence') && $user->id == $absence->requesterID)
+        {
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Determine whether the user can create models.
+     *
+     * @param  \App\User  $user
+     * @return \Illuminate\Auth\Access\Response|bool
+     */
+    public function create(User $user)
+    {
+        return $user->hasPermissionTo('reviewer.requestAbsence');
+    }
+
+    /**
+     * Determine whether the user can update the model.
+     *
+     * @param  \App\User  $user
+     * @param  \App\Absence  $absence
+     * @return \Illuminate\Auth\Access\Response|bool
+     */
+    public function update(User $user, Absence $absence)
+    {
+        return $user->hasPermissionTo('admin.manageAbsences');
+    }
+
+    /**
+     * Determine whether the user can delete the model.
+     *
+     * @param  \App\User  $user
+     * @param  \App\Absence  $absence
+     * @return \Illuminate\Auth\Access\Response|bool
+     */
+    public function delete(User $user, Absence $absence)
+    {
+        return $user->hasPermissionTo('admin.manageAbsences') || $user->hasPermissionTo('reviewer.withdrawAbsence') && $user->id == $absence->requesterID;
+    }
+
+}