ruby on rails - link_to for url with embedded parameters -

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i'm still newish rails not sure on correct terms here but..

i'd see how use link_to helper when url has parameters embedded in structure.

such as:

http://example.com/appointments/2015/3/15

which displays appointments day. how use link when know date need pass in part of url?

something like, link_to 'text', appointments_path(2015/3/15) or whatever is?

sorry i'm unsure terms here or else find better google

bonus: call type of parameters?

assuming have route dynamic segments like:

get '/appointments/:year/:month/:date', to: 'appointments#index', as: :appointments

you pass year, month, , day parameters arguments path helper:

link_to appointments_path(year: 2015, month: 3, day: 15)

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