Extract an input field for DateTime

app/inputs/date_time_input.rb

@@ -0,0 +1,17 @@
+# encoding: utf-8
+class DateTimeInput < SimpleForm::Inputs::Base
+  FORMAT = '%Y-%m-%d %H:%M:%S'
+
+  def input
+    timestamp = @builder.object.send(attribute_name)
+    formatted = timestamp.try(:strftime, FORMAT)
+
+    options[:hint] = 1.week.from_now.strftime "Формат: #{FORMAT}"
+
+    input_html_classes.unshift 'string'
+    input_html_options[:type] = :string
+    input_html_options[:value] = formatted
+
+    @builder.text_field attribute_name, input_html_options
+  end
+end

app/views/challenges/_form.html.haml

@@ -1,3 +1,3 @@
 = form.input :name
 = form.input :description
-= form.input :closes_at, as: :string, input_html: {value: @challenge.closes_at.try(:strftime, '%Y-%m-%d %H:%M:%S')}
+= form.input :closes_at, as: :date_time

app/views/challenges/index.html.haml

@@ -1,5 +1,9 @@
 %h1 Предизвиксателства
+= admin_only do
+  = link_to 'Ново', new_challenge_path, class: :action
 
 %ul
   - @challenges.each do |challenge|
-    %li= link_to challenge.name, challenge
+    %li
+      = link_to challenge.name, challenge
+      (краен срок: #{l(challenge.closes_at)})

app/views/layouts/application.html.haml

@@ -31,6 +31,7 @@
         %li= link_to 'Новини', announcements_path
         %li= link_to 'Материали', lectures_path
         %li= link_to 'Задачи', tasks_path
+        %li= link_to 'Предизвикателства', challenges_path
         %li= link_to 'Форуми', topics_path
         %li= link_to 'Потребители', users_path
         - if admin?

app/views/tasks/_form.html.haml

@@ -1,6 +1,6 @@
 = simple_form_for task do |form|
   = form.input :name
-  = form.input :closes_at, as: :string, input_html: {value: task.closes_at.try(:strftime, '%Y-%m-%d %H:%M:%S')}
+  = form.input :closes_at, as: :date_time
   = form.input :checked
   = form.input :description
   = form.input :test_case

config/locales/bg.yml

@@ -21,8 +21,6 @@ bg:
         phone: Не е публичен; ползваме го само в краен случай
         site: Ако имате такъв; не забравяйте да укажете протокол (например http://)
         about: Ако искате
-      task:
-        closes_at: 'Формат: 2011-03-31 13:20:45'
   helpers:
     submit:
       reply: