Rails - Jul 2007 - using helper methods in email templates

hi

I''m creating an template for an html email. My own helper method
''format_price'' is not accepted, but it works in some other
templates.



application_helper.rb:

# Methods added to this helper will be available to all templates in
the application.
module ApplicationHelper
  def format_price(amount)
    euro, cents = amount.divmod(100)
    sprintf("EUR %d,%02d" , euro, cents)
  end
end


order_mailer.rb:

class OrderMailer < ActionMailer::Base
  def confirmation(order)
    @subject    = ''''
    @body       = { :order => order }
    @recipients = order.customer.email
    @from       = "my_email-hi6Y0CQ0nG0@public.gmane.org"
    @sent_on    = Time.now
    @headers    = {}
  end
end


private method in the controller:

  def confirm_order(order)
    email = OrderMailer.create_confirmation(order)   # line 185
    email.set_content_type("text/html")
    render(:text => "<pre>" + email.encoded +
"</pre>" )
  end


the error message:

NoMethodError in Cart_and_orders#new_order
Showing app/views/order_mailer/confirmation.rhtml where line #23
raised:

undefined method `format_price'' for #<ActionView::Base:0x47ca250>

Extracted source (around line #23):

20:         <td><%= order_item.times %>&times;</td>
21:         <td><%= h(order_item.product.title) %></td>
22:         <td></td>
23:         <td
align="right"><%format_price(order_item.product.price)
%></td>
24:         <td
align="right"><%format_price(order_item.product.price *
order_item.times) %></td>
25:       </tr>
26:     <% end %>



RAILS_ROOT: ./script/../config/..

Application Trace | Framework Trace | Full Trace
#{RAILS_ROOT}/app/views/order_mailer/confirmation.rhtml:23:in
`_run_rhtml_47app47views47order_mailer47confirmation46rhtml''
#{RAILS_ROOT}/app/views/order_mailer/confirmation.rhtml:18:in
`_run_rhtml_47app47views47order_mailer47confirmation46rhtml''
#{RAILS_ROOT}/app/controllers/cart_and_orders_controller.rb:185:in
`confirm_order''
#{RAILS_ROOT}/app/controllers/cart_and_orders_controller.rb:155:in
`new_order''
#{RAILS_ROOT}/app/controllers/cart_and_orders_controller.rb:151:in
`new_order''


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Add a reference to your helper in your OrderMailer ActionMailer class,
like this:

helper :application

That should solve your problem (at least this is what I do to fix it).

Regards,

Dave
http://www.stevensonsoftware.com - affordable VPS Hosting
http://www.gotossh.com - web based SSH

On Jul 23, 8:37 am, Luma <martin....-hi6Y0CQ0nG0@public.gmane.org>
wrote:
> hi
>
> I''m creating an template for an html email. My own helper method
> ''format_price'' is not accepted, but it works in some
other templates.
>
> application_helper.rb:
>
> # Methods added to this helper will be available to all templates in
> the application.
> module ApplicationHelper
>   def format_price(amount)
>     euro, cents = amount.divmod(100)
>     sprintf("EUR %d,%02d" , euro, cents)
>   end
> end
>
> order_mailer.rb:
>
> class OrderMailer < ActionMailer::Base
>   def confirmation(order)
>     @subject    = ''''
>     @body       = { :order => order }
>     @recipients = order.customer.email
>     @from       = "my_em...-hi6Y0CQ0nG0@public.gmane.org"
>     @sent_on    = Time.now
>     @headers    = {}
>   end
> end
>
> private method in the controller:
>
>   def confirm_order(order)
>     email = OrderMailer.create_confirmation(order)   # line 185
>     email.set_content_type("text/html")
>     render(:text => "<pre>" + email.encoded +
"</pre>" )
>   end
>
> the error message:
>
> NoMethodError in Cart_and_orders#new_order
> Showing app/views/order_mailer/confirmation.rhtml where line #23
> raised:
>
> undefined method `format_price'' for
#<ActionView::Base:0x47ca250>
>
> Extracted source (around line #23):
>
> 20:         <td><%= order_item.times %>&times;</td>
> 21:         <td><%= h(order_item.product.title) %></td>
> 22:         <td></td>
> 23:         <td align="right"><%>
format_price(order_item.product.price) %></td>
> 24:         <td align="right"><%>
format_price(order_item.product.price * order_item.times) %></td>
> 25:       </tr>
> 26:     <% end %>
>
> RAILS_ROOT: ./script/../config/..
>
> Application Trace | Framework Trace | Full Trace
> #{RAILS_ROOT}/app/views/order_mailer/confirmation.rhtml:23:in
> `_run_rhtml_47app47views47order_mailer47confirmation46rhtml''
> #{RAILS_ROOT}/app/views/order_mailer/confirmation.rhtml:18:in
> `_run_rhtml_47app47views47order_mailer47confirmation46rhtml''
> #{RAILS_ROOT}/app/controllers/cart_and_orders_controller.rb:185:in
> `confirm_order''
> #{RAILS_ROOT}/app/controllers/cart_and_orders_controller.rb:155:in
> `new_order''
> #{RAILS_ROOT}/app/controllers/cart_and_orders_controller.rb:151:in
> `new_order''

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