I’ve just released the newest version of RhizMail, the email library we use at Rhizome. Most of the changes are minor, but one bigger change is making it easier to parameterize a child of SimpleTemplateMessage.

For example, You can still create a SimpleTemplateMessage directly:

msg = RhizMail::SimpleTemplateMessage.new(
:to_address => 'john.doe@email.com',
:from_address => 'webmaster@website.com',
:template_file => '/Users/francis/Desktop/template.txt'
)
msg.substitute( 'email', 'john.doe@email.com' )
msg.substitute( 'password', 'p4ssw0rd' )
msg.deliver

But you can also create a child, parameterizing it with class methods:

class IntroEmail < RhizMail::SimpleTemplateMessage
from_address 'webmaster@website.com'
template '/Users/francis/Desktop/template.txt'
substitute 'email', Proc.new { |msg| msg.user.email }
substitute 'password', Proc.new { |msg| msg.user.password }
attr_reader :user
def initialize( user )
@user = user
super( :to_address => user.email )
end
end
User = Struct.new( :email, :password )
u = User.new( 'john.doe@email.com', 'p4ssw0rd' )
email = IntroEmail.new u