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.
- :http_only - Whether this cookie is accessible via scripting or
only HTTP. Defaults to false.