Form helpers for views

Defining <form> tag for a model

<%= form_for @post do |f| %>
...
<% end %>

Using tag helpers under form_for

<%= f.text_field :name %>
<%= f.text_field :name, {class: "input", placeholder: 'John Stevenson' } %>
<%= f.text_area :hobby %>

Selects are pretty special

<%= f.select :location_id, [['Berlin',1], ['Moscow',2], ...], 1 %>
<%= f.select :employee_position_id, 'Position', EmployeePositions.all.map{ |position| [position.name, position.id] } %>

Buttons

  <div class="actions">
    <%= f.submit class: 'button' %>
  </div>