ruby on rails - where to store password besides database -

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i'm trying build super simple authentication. i'm not sure store admin password. should put password? model, environment or somewhere else.? , how can access enviroment variable if store in environment. thanks!

update:

i put somethin in environment.rb

admin_password = "blablabla"

and trying authenticate

def authenticate(username, password) password = digest::md5.hexdigest(password).to_s  if username == "admin" && password == env["admin_password"]   session[:login] = true  end end

not working...

i think no need to_s. all.

i'd prefer storing in environment variables if database not option.

you can access them like

env["db_password"] # => "something_random"

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