Rails: How to determine controller/action in view

Question

This is my form partial:

<%= f.simple_fields_for :photo_attributes, :html => { :multipart => true } do |d| %>
    <%= d.label :image, :label =>         


        

Answer 1

You could write something like

<%- form_url = @object.new_record? ? :photo_attributes : :photo %>
<% f.simple_fields_for form_url, :html => { :multipart => true } do |d| %>

That is, if you have an @object to check against. Otherwise you could use action_name (and even controller_name).

So something like:

<%- form_url = action_name == :edit ? :photo : :photo_attributes %>
<% f.simple_fields_for form_url, :html => { :multipart => true } do |d| %>

Hope this helps.

Answer 2

Rails 5: Display Action within the view

<%= action_name %>

If statement within the view

<% if action_name == "edit" %>
  This is an edit action.
<% end %>

Answer 3

Just use @_controller.action_name in view

Answer 4

Generally the form partial only contains the fields, not the form tag or the fields for, but if you have no other way, you can always see what params[:action] is currently set to and behave accordingly.

Answer 5

current_page?(action: 'edit')

See ActionView::Helpers::UrlHelper#current_page?

Rails also makes the methods controller_path, controller_name, action_name available for use in the view.