How to redirect_to(:back) two times? - ruby-on-rails

Question

def update
if #note.update_attributes(note_params)
redirect_to :back, notice: "Note was updated."
else
render :edit
end
end
Is there a way to redirect back twice?

Answer 1

Here you go:
This is where the link for editing goes:
<p id="notice"><%= notice %></p>
<% url = "#{request.protocol}#{request.host_with_port}#{request.fullpath}" %>
<%= link_to 'Create New Page and Return Here', edit_page_path(1, :url => Base64.encode64(url) ) %>
<br>
After submit your url will be something like this:
http://localhost:3000/pages/1/edit?url=aHR0cDovL2xvY2FsaG9zdDozMDAwL2R1bW1pZXM%3D%0A
In the edit form:
I called it pages/_form.html.erb, Pass the URL as a hidden params.
<%= form_for(#page) do |f| %>
<% if #page.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#page.errors.count, "error") %> prohibited this page from being saved:</h2>
<ul>
<% #page.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :name %><br>
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :permalink %><br>
<%= f.text_field :permalink %>
</div>
<%= hidden_field_tag :url, params[:url].to_s %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
In controller that you have update method, in this case pages_controller.rb, simply Base64 it back and redirect the user:
def update
redirection = nil
if params[:url].present?
redirection = Base64.decode64(params[:url].to_s)
end
if #page.update(page_params)
if redirection.present?
path = redirection
else
path = #page
end
redirect_to path, notice: 'All Done.'
else
render :edit
end
end
Now user updates the form and redirected back to the first show or index page or any page that she is coming from.
Hope this help.
PS: You might want to clean it up a bit and pass the url from the controller, and put some checks on it. So you don't define any var at the view level. In the above code I just tried to solve this issue not really a design pattern oriented :)