rails routing does not work

Question

I have following route explicitly defined in my routes.rb

map.book_preview_v2 '/books/v2/:id', :controller => 'books', :action => 'show_v2'

But, in the logs, I see following message:

2015-09-25 16:49:04 INFO (session: f561ebeab121cd1c8af38e0482f176b8)
method /books/v2/519869.json (user: xxx:669052) params:
{"controller"=>"books", "action"=>"v2", "id"=>"519869",
"format"=>"json"}

ActionController::UnknownAction (No action responded
to v2. Actions: some_method_1, some_method_2,
some_method_3, some_method_4, some_method_5, **show_v2**,
some_method_6, and some_method_7):

Am I missing some convention over configuration thing? Why in the logs I see action as "v2" instead of "show_v2"?

Answer 1

ActionController::UnknownAction (No action responded to v2. Actions: some_method_1, some_method_2, some_method_3, some_method_4, some_method_5, show_v2, some_method_6, and some_method_7):

Why in the logs I see action as "v2" instead of "show_v2"?

As per the Rails 2 default route

map.connect ':controller/:action/:id'

it expects v2 as action but you defined show_v2 as action in the route. Changing your route to below should work

map.connect '/books/show_v2/:id', :controller => 'books', :action => 'show_v2'