Rails - Oct 2006 - action mailer, error Subject: Header must not be multiple

i want to send multiple emails:


       #my Controller

	def send_email
	  if params[:group_ids]
	  groups = Group.find(params[:group_ids]) # creates an array called 
''groups'' that looks like : [{:id => 1, :title =>
''yediot''}, {:id => 2,
:title => ''maariv''} ] ---  [ 1, 2 ]
	  else
	  groups = []
	  end
	  names = []
	  emails = []
	  grouptitle = []
	  pages = []
	  groups.each { |group|  # do a loop for {:id=> 1 ....} and then do 
another loop {:id => 2 ... } until the end of the array, and then 
continue to the next line # group.users - - >  [{:id => 3, :email => 
''s@mama.com'', :name => ''aaa'' }, {:id
=> 454, :email => ''sjsl-lztva+7fudk@public.gmane.org'',
:name => ''lsls'' }]
 	  group.users.each {|a|
	  emails << a.email
	  names << a.name
               }
	  groups.each { |group |
	  grouptitle << group.title
	  }
	  groups.each { |group|
	  group.pages.each {|page|
 	  pages << page.body
	  }}
           }

	    Mailer.deliver_contact_us(
	       :recipients =>  emails,
		:subject => grouptitle, #the error comes from this line
		:body => { :name => names,
	                   :phone => ''08-9492332'',
	                   :email => emails,
	                   :message => pages,
			},

	       :from => "yoni-A+lxSsK1Ony+XT7JhA+gdA@public.gmane.org"
	    )
	end



        #my email Model(mailer.rb)

class Mailer < ActionMailer::Base

  helper ActionView::Helpers::UrlHelper

  def generic_mailer(options)
    @recipients = options[:recipients]
    @from = options[:from]
    @cc = options[:cc] || ""
    @bcc = options[:bcc] || ""
    @subject = options[:subject] || "this is my great message"
    @body = options[:body] || {}
    @headers = options[:headers] || {}
    @charset = options[:charset] || "utf-8"
  end

  # Create placeholders for whichever e-mails you need to deal with.
  # Override mail elements where necessary

  def contact_us(options)
    self.generic_mailer(options)
  end

end




rails error message: "Subject: Header must not be multiple"

**has anyone encounter this error???

thanks

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You''re trying to set the subject of the email to an array, which
clearly
is not a reasonable thing to expect.

Fred

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Frederick Cheung wrote:
> You''re trying to set the subject of the email to an array, which
clearly
> is not a reasonable thing to expect.
> 
> Fred
can you guide me?

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I''ve no idea what you want to set as the subject line of your email,
but
just don''t set it to be an array, i.e. set grouptitle to a string. If 
you want different subject lines for each emails I believe you''ll need 
to create emails one by one.

Fred

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