Rails - Jun 2009 - ActionMailer(1.3.5) model problem in my Rails1.2.5

Hi all:
   I user the command : ruby script/generate mailer FinanceMailer
alert_customer_balance,  then ,i have this files:

class FinanceMailer < ActionMailer::Base

  def alert_customer_balance(sent_at = Time.now)
    @subject    = ''FinanceMailer#alert_customer_balance''
    @body       = {}
    @recipients =
''qiang.zhou-A0Qnk8eqIkkAvxtiuMwx3w@public.gmane.org''
    @from       =
''qiang.zhou-A0Qnk8eqIkkAvxtiuMwx3w@public.gmane.org''
    @sent_on    = sent_at
    @headers    = {}
  end
end

After this ,i start ruby with: ruby script/console。 at this consoel
enviroment, i put "FinanceMailer.alert_customer_balance", But system
return :
NoMethodError: undefined method `alert_customer_balance'' for
FinanceMailer:Class

        from c:/ruby/lib/ruby/gems/1.8/gems/actionmailer-1.3.5/lib/
action_mailer
/base.rb:335:in `method_missing''
        from (irb):13
>>
I think maybe some inint method error?

I think my problem is  :
>> FinanceMailer.new
=> nil
>>
On Jun 15, 10:42 am, geniusfox
<genius...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi all:
>    I user the command : ruby script/generate mailer FinanceMailer
> alert_customer_balance,  then ,i have this files:
>
> class FinanceMailer < ActionMailer::Base
>
>   def alert_customer_balance(sent_at = Time.now)
>     @subject    = ''FinanceMailer#alert_customer_balance''
>     @body       = {}
>     @recipients =
''qiang.z...-A0Qnk8eqIkkAvxtiuMwx3w@public.gmane.org''
>     @from       =
''qiang.z...-A0Qnk8eqIkkAvxtiuMwx3w@public.gmane.org''
>     @sent_on    = sent_at
>     @headers    = {}
>   end
> end
>
> After this ,i start ruby with: ruby script/console。 at this consoel
> enviroment, i put "FinanceMailer.alert_customer_balance", But
system
> return :
> NoMethodError: undefined method `alert_customer_balance'' for
> FinanceMailer:Class
>
>         from c:/ruby/lib/ruby/gems/1.8/gems/actionmailer-1.3.5/lib/
> action_mailer
> /base.rb:335:in `method_missing''
>         from (irb):13
>
>
>
> I think maybe some inint method error?

On Jun 15, 3:42 am, geniusfox
<genius...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:
> Hi all:
>    I user the command : ruby script/generate mailer FinanceMailer
> alert_customer_balance,  then ,i have this files:
>
> class FinanceMailer < ActionMailer::Base
>
>   def alert_customer_balance(sent_at = Time.now)
>     @subject    = ''FinanceMailer#alert_customer_balance''
>     @body       = {}
>     @recipients =
''qiang.z...-A0Qnk8eqIkkAvxtiuMwx3w@public.gmane.org''
>     @from       =
''qiang.z...-A0Qnk8eqIkkAvxtiuMwx3w@public.gmane.org''
>     @sent_on    = sent_at
>     @headers    = {}
>   end
> end
>
> After this ,i start ruby with: ruby script/console。 at this consoel
> enviroment, i put "FinanceMailer.alert_customer_balance", But
system
That''s not how Action Mailer works. If you define the instance method
foo, then it creates for you two class methods:

FinanceMailer.create_foo (creates a TMail object representing an email
from your foo method)
FinanceMailer.deliver_foo (creates and sends an email)

Fred
> return :
> NoMethodError: undefined method `alert_customer_balance'' for
> FinanceMailer:Class
>
>         from c:/ruby/lib/ruby/gems/1.8/gems/actionmailer-1.3.5/lib/
> action_mailer
> /base.rb:335:in `method_missing''
>         from (irb):13
>
>
>
> I think maybe some inint method error?