contact_mailer.rb

class ContactMailer < ApplicationMailer

  # Subject can be set in your I18n file at config/locales/en.yml
  # with the following lookup:
  #
  #   en.contact_mailer.message.subject
  #
  def message(message)
    @message = message
    
    mail to: CONTACT_RECIPIENT, subject: @message.subject
  end
end

development.rb

....snip...
    CONTACT_RECIPIENT = 'email@example.org'
...snip...

error in broweser

ArgumentError in MessagesController#create
wrong number of arguments (given 0, expected 1)

Extracted source (around line #8):
6
7
8
9
10
11
              
  #   en.contact_mailer.message.subject
  #
  def message(message)
    @message = message

    mail to: CONTACT_RECIPIENT, subject: @message.subject

Rails.root: /home/andreas/railsdev/alphatrade_new

Application Trace | Framework Trace | Full Trace
app/mailers/contact_mailer.rb:8:in `message'
app/mailers/contact_mailer.rb:11:in `message'
app/controllers/messages_controller.rb:11:in `create'
app/controllers/application_controller.rb:23:in `block in with_timezone'
app/controllers/application_controller.rb:23:in `with_timezone'
Request

Parameters:

{"utf8"=>"✓",
 "authenticity_token"=>"WWV/jDthve7jOE5jHaf3ewBT9r6CtCUYAKvKk+II8ywyxuKa3EFrhLDSovC/wSDrz0DkQAmXcxepMCa7o2LSXA==",
 "message"=>{"name"=>"dads", "company"=>"dsa", "email"=>"adsfasd@fwef.de", "subject"=>"fwefwefeasr", "body"=>"fawerfgaergrgas", "humanizer_question_id"=>"12", "humanizer_answer"=>"good"},
 "commit"=>"Send"}
Toggle session dump
Toggle env dump
Response

Headers:

None

message.html.erb

<h1>Email from your web site</h1>
<ul>
  <li>From: <%= @message.name %></li>
  <li>Company: <%= @message.company %></li>
  <li>E-mail: <%= @message.email %></li>
</ul>
<p>Message: <%= @message.body %></p>

messages_controller.rb

class MessagesController < ApplicationController

  def new
    @message = Message.new
  end


  def create
    @message = Message.new(message_params)
    if @message.save
      ContactMailer.message(@message).deliver_now
      flash[:notice] = 'Thank you for your message'
      redirect_to root_path
    else
      render :new
    end
  end


  def message_params
    params.require(:message).permit(:name, :company, :email, :subject, :body, :humanizer_answer, :humanizer_question_id)
  end

end