Improve allowed language handling (#2897)

* Dont allow empty value in user allowed languages

* Sanitize language input to reject blank values in array

1 files changed, 8 insertions, 0 deletions

diff --git a/app/models/user.rb b/app/models/user.rb
index f8e8a2efa..dfecb2339 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -52,6 +52,8 @@ class User < ApplicationRecord
   scope :admins,    -> { where(admin: true) }
   scope :confirmed, -> { where.not(confirmed_at: nil) }
 
+  before_validation :sanitize_languages
+
   def confirmed?
     confirmed_at.present?
   end
@@ -77,4 +79,10 @@ class User < ApplicationRecord
   def setting_auto_play_gif
     settings.auto_play_gif
   end
+
+  private
+
+  def sanitize_languages
+    allowed_languages.reject!(&:blank?)
+  end
 end