How to set default parameters in the index_helper method for rails generators?

Question

I use the index helper like this

= link_to <%= index_helper(type: :url) %>

I want to pass default params so the generator creates resource_index_path(my_params). I looked at the method definition but couldn't see how to make this work. Is it even possible without overrides?

Answer 1

# File railties/lib/rails/generators/named_base.rb, line 97
def index_helper # :doc:
  uncountable? ? "#{plural_route_name}_index" : plural_route_name
end

The method isn't doing anything with any variables passed to it.

But, as you'll note, it's just returning a string, so you can freely append to it as you please:

= link_to <%= "#{index_helper}?name=Bob&age=32&is_admin=true" %>

But I'm not sure why you're not just creating a standard path or URL helper:

# edit path:
= link_to <%= send("edit_#{resource_name}_path", all: "the", params: "you could want") %>

# index path:
= link_to <%= send("#{resource_name}_path", all: "the", params: "you could want") %>

# show path:
= link_to <%= send("#{resource_name}_path", all: "the", params: "you could want") %>

# new path:
= link_to <%= send("new_#{resource_name}_path", all: "the", params: "you could want") %>