diff options
Diffstat (limited to 'actionmailer/lib/action_mailer')
| -rw-r--r-- | actionmailer/lib/action_mailer/base.rb | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/actionmailer/lib/action_mailer/base.rb b/actionmailer/lib/action_mailer/base.rb index af3ef877b2..9876b88ecd 100644 --- a/actionmailer/lib/action_mailer/base.rb +++ b/actionmailer/lib/action_mailer/base.rb @@ -372,8 +372,9 @@ module ActionMailer #:nodoc: def part(params) params = {:content_type => params} if String === params if custom_headers = params.delete(:headers) - STDERR.puts("Passing custom headers with :headers => {} is deprecated. Please just pass in custom headers directly.") - params = params.merge(custom_headers) + ActiveSupport::Deprecation.warn('Passing custom headers with :headers => {} is deprecated. ' << + 'Please just pass in custom headers directly.', caller[0,10]) + params.merge!(custom_headers) end part = Mail::Part.new(params) yield part if block_given? |