Rails 3 + action mailer - Cannot loop to send emails

Question

A user can create an object, and he has followers that I want to alert when he creates this object.

controller:

if @project.save
  f         


        

Answer 1

You can also move the .deliver call into your new_project method. This works for me using Rails 3:

def new_project(project)
  # ...
  @followers.each do |f|
    # ...
    mail(:to => @u.email,
         :from => '"Beatrix Kiddo" <beatrix@example.com>',
         :subject => "#{project.owner.name} created a new project").deliver
  end
end

To send the mails, you would use

if @project.save
   # ...
   UserMailer.new_project(@project)
else
   # ...
end

Answer 2

ActionMailer does not support sending multiple messages with one deliver call. You have to move the loop outside of the new_project method:

Instead of

UserMailer.new_project(@project).deliver

try this:

@followers = @project.owner.followers.all
@followers.each do |f|
    UserMailer.new_project(@project, f).deliver
end

The new_project method then could look like this:

def new_project(project, follower)
    @u = User.find(f.follower)
    mail(:to => @u.email,
         :from => '"Beatrix Kiddo" <beatrix@example.com>',
         :subject => "#{project.owner.name} created a new project")
end