Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Ruby Building Web Apps with Sinatra Updating Data Submitting the Edit Form Via PUT Request

Having trouble passing arguments to the update_signature() method. Challenge Task 5 of 6 -Building Web Apps w/ Sinatra

Can seem to figure out what arguments need to get passed into the update_signature() method within my put request. Any help would be appreciated. Thanks! #line 27

views/edit.erb
<p>Please enter your name below.</p>

<form method="post" action ="/signatures/<%=@index%>">
  <input type="hidden" name="_method" value="put">
  <input type="text" name="signature" value="<%= @signature %>">
  <input type="submit">
</form>
guestbook.rb
require "sinatra"

def load_signature(index)
  # Code omitted for brevity
end

# Updates the line at the given index and re-saves the file.
def update_signature(index, signature)
  lines = File.readlines("signatures.txt")
  index = index.to_i
  lines[index] = signature
  File.open("signatures.txt", "w") do |file|
    file.puts lines
  end
end

get "/:index/edit" do
  # Code omitted for brevity
end

get "/signatures/new" do
  # Code omitted for brevity
end

# ROUTE FOR PUT REQUESTS GOES HERE
put "/signatures/0" do
  update_signature(params[@index], params["signature"])
end

1 Answer

Jay McGavren
STAFF
Jay McGavren
Treehouse Teacher

You're close, but your put "/signatures/0" should be renamed to use an :index URL parameter in place of the 0. Then you should access params[:index], not params[@index].