Fix contest creation

app/controllers/contests_controller.rb

@@ -56,12 +56,15 @@ class ContestsController < ApplicationController
     authorize :contest
 
     @contest = Contest.new
+    @title = I18n.t("contests.new.title")
   end
 
   def create
     authorize :contest
 
     @contest = Contest.new(new_contest_params)
+    @contest.lang = @current_user.lang
+    @contest.ranking_mode = "actual"
     @contest.user_id = current_user.id
     if @contest.save
       redirect_to "/contests/#{@contest.id}/settings/general", notice: t("contests.new.notice")

app/models/contest.rb

@@ -39,12 +39,12 @@ class Contest < ApplicationRecord
 
   friendly_id :name, use: :slugged
 
-  before_save :add_duration_seconds
+  before_save :add_duration_seconds, if: -> { duration.present? }
 
   validates :name, presence: true
   validates :lang, inclusion: { in: Languages::AVAILABLE_LANGUAGES.map { |lang| lang[:id] } }
   validates :ranking_mode, inclusion: { in: Ranking::AVAILABLE_RANKING_MODES.map { |lang| lang[:id] } }
-  validates :duration, format: { with: /\A(\d\d:\d\d|\d:\d\d)\z/ }
+  validates :duration, format: { with: /\A(\d\d:\d\d|\d:\d\d)\z/ }, if: -> { duration.present? }
 
   generates_token_for :token
 

app/views/layouts/authenticated.html.slim

@@ -44,7 +44,7 @@ html
               = msg
 
       h1.mb-4
-        - if @contest
+        - if @contest && @contest.id.present?
           = @contest.name
           - if active_page("/public") == "active" && @action_path
             a.ms-4.btn.btn-primary href=@action_path style="margin-top: -6px"
@@ -52,7 +52,7 @@ html
         - else
           = @title
 
-      - if @contest && active_page("/public") != "active"
+      - if @contest && active_page("/public") != "active" && active_page("/contests/new") != "active" && active_page("/contests/create") != "active" && active_page("/contests") == "active"
         = render "contest_nav"
 
       = yield