Method set_visible_to_false turn off
Method in Post model add to sort_post, add to static_controler and index
Validates add for Post model, presence of title and body
Routes an link better to publish the post
Post if can publish move from view to helper posts_helper.rb
In posts_controller change from find_by_sql to all
Add devise module to test_helper.rb
user create for tests
user create for tests
add user for tests