FIX: fix content dependency on categories

app/Policies/BasicPolicy.php

@@ -20,12 +20,11 @@ abstract class BasicPolicy
      */
     public function before(User $user, $ability)
     {
+
         // check if user can operate on given entity
         if (!$this->manage($user)) {
             return false;
         }
-
-        return null;
     }
 
     /**

app/Policies/ContentPolicy.php

@@ -21,10 +21,6 @@ class ContentPolicy extends BasicPolicy
      */
     public function update(User $user, Content $content)
     {
-//        if (!$user->hasAbility('update-contents-' . $content->module->alias)) {
-//            return false;
-//        }
-
         if ($user->id != $content->user_id) {
             return $user->hasAbility('update-contents') && $user->hasAbility('update-all-contents');
         };
@@ -32,21 +28,28 @@ class ContentPolicy extends BasicPolicy
         return $user->hasAbility('update-contents');
     }
 
-    public function create(User $user, Content $content) {
+    /**
+     * Does given user has permissions to create new content page?
+     *
+     * @param User $user
+     *
+     * @return bool
+     */
+    public function create(User $user) {
         return $user->hasAbility('create-contents');
     }
 
-    public function publish(User $user, Content $content)
+    public function publish(User $user)
     {
         return $user->hasAbility('publish-contents');
     }
 
-    public function setHomepage(User $user, Content $content)
+    public function setHomepage(User $user)
     {
         return $user->hasAbility('set-homepage-contents');
     }
 
-    public function viewHistory(User $user, Content $content) {
+    public function viewHistory(User $user) {
         return $user->hasAbility('view-history-contents');
     }
 }