Adding a button to <%= link_to_add_fields "Add A Present", f, :presents %> in Rails?

Question

I can't figure out how to add a button to a link_to_add_fields as in

<%= link_to_add_fields "Add A Present", f, :presents %>

in Rails App I'm making.

I tried adding, class: "btn btn-mini btn-info" everywhere, but I keep getting an error about number of arguments.

It works for example in this line:

<%= f.link_to_remove "Remove this present", class: "btn btn-mini btn-info" %>

Thanks in advance.

Answer 1

I am assuming you made this helper from the rails cast episode http://railscasts.com/episodes/197-nested-model-form-part-2.

In your application_helper.rb, you have defined link_to_add_fields. Probably something like this.

def link_to_add_fields(name, f, association)

change it to this

def link_to_add_fields(name, f, association, locals={})

Then on the return statement.

link_to_function(name, "add_fields(this, \"#{association}\", \"#{escape_javascript(fields)}\")", class: locals[:class])

Finally, use your new method like so

<%= link_to_add_fields "Add A Present", f, :presents, class: "btn btn-mini btn-info" %>

Answer 2

Based off @Aeisme's response I had to hack together a solution for Rails 4.1 users.

application_helper.rb

def link_to_add_fields(name, f, association, locals={})

return value for link_to_add_fields function

link_to(name, '#', class: [locals[:class], "add_fields"], data: {id: id, fields: fields.gsub("\n", "")})

Answer 3

Allen's answer worked for me! You could also add the button class directly in your helper method.

see helper method example