Cookies are read and written through ActionController#cookies.
The cookies being read are the ones received along with the request, the cookies being written will be sent out with the response. Reading a cookie does not get the cookie object itself back, just the value it holds.
Examples for writing:
# Sets a simple session cookie. cookies[:user_name] = "david" # Sets a cookie that expires in 1 hour. cookies[:login] = { :value => "XJ-122", :expires => 1.hour.from_now }
Examples for reading:
cookies[:user_name] # => "david" cookies.size # => 2
Example for deleting:
cookies.delete :user_name
Please note that if you specify a :domain when setting a cookie, you must also specify the domain when deleting the cookie:
cookies[:key] = { :value => 'a yummy cookie', :expires => 1.year.from_now, :domain => 'domain.com' } cookies.delete(:key, :domain => 'domain.com')
The option symbols for setting cookies are:
:value - The cookie's value or list of values (as an array).
:path - The path for which this cookie applies. Defaults to the root of the application.
:domain - The domain for which this cookie applies.
:expires - The time at which this cookie expires, as a Time object.
:secure - Whether this cookie is a only transmitted to HTTPS servers. Default is false.
:httponly - Whether this cookie is accessible via scripting or only HTTP. Defaults to false.
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