dynamic - Rails routes: same controller different routes -

in our app have tag model, such red yellow big small etc. in several categories color , size (tag model have field category). now, instead of

/tags/big /tags/small /tags/red /tags/yellow /tags 

we want routes like

/size/big /size/small /color/red /color/yellow /size /color ... 

also, url helpers should work too, i.e., tag_path should yield correct url's how in routes.rb file? thanks!!

edit:

1. need index pages/url_helper work too
2. will_paginate uses tag_path generate links page numbers. need overload tag_path?

you can use route constraints. define class executes matches customized conditions. can search api match see details.

i assume tag has 2 columns named "category" , "name".

route.rb

match ':category/:name' => 'tags#show', via: 'get', constraints: tagroutewhitelist.new, as: 'tag' 

app/models/tag_route_white_list.rb

class tagroutewhitelist   def matches(request)     tag.distinct('category').include?(request.params[:category]) && tag.distinct('name').include?(request.params[:name])   end end 

in view, can use tag_path(category: @tag.category, name: @tag.name)