school-platform/app/views/news_posts/_news_feed.html.erb

<h3>News feed</h3>
<% for news_post in news_feed.news_posts do %>
  <%= render news_post %>
<% end %>
<% if news_feed.can_post_news?(current_user) %>
  <h4>New post</h4>

  <% @news_post = news_feed.news_posts.build %>
  <%= render 'news_posts/form' %>
<% end %>