app/views/stories/steps/_activate.html.erb
<%= simple_form_for(@story, url: story_path(@story), as: :story, html: {class: 'floating_form form-vertical'}) do |f| %>
<%= render partial: 'shared/form/error_messages', locals: { resource: @story } %>
<% if step == :activate %>
<input type="hidden" name="next_step" value="1"/>
<% end %>
<%= render partial: 'tasks/collection', locals: {
collection: @story.tasks.select{|t| !t.new_record? },
options: { current_parent: @story, columns: @step_presenter.task_columns, append_new_link: false }
}
%>
<div class="form-group">
<%= f.button :submit, t('general.events.activate') %>
</div>
<% end %>