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add callbacks to actionmailer

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README.md

ActionMailer Callbacks

Build Status

This gem adds before_create and around_create to ActionMailer::Base to make it work similarly to ActionController before/around filters and ActiveRecord::Base callbacks:

  before_create :log_params, except: :test_email
  around_create :benchmark,  only:   :test_email

except and only options are optional and has same functionality as in ActionController.

Callbacks functionality is implemented using the ActiveSupport::Callbacks module.

Requirements

The master branch now works only with ActionMailer 3.x, if you need to add callbacks to older versions please refer to the 0.x release.

Installation

Add the gem to the Gemfile:

  gem 'actionmailer-callbacks'

And then run bundle

Documentation

You can find some more documentation on the workings of the gem on relish: https://www.relishapp.com/spaghetticode/actionmailer-callbacks/docs

Notes

If you need something like before/after deliver callbacks ActionMailer 3.x comes ready for that: you can use an observer or an instrumentation for that.

The around_create callback wraps the entire mail method execution. You can use them for rescuing from errors or for benchmarking, for example.

The gem adds the args attribute accessor to the mail object in order to be able to access the arguments used for its initialization.

Example

  class UserMailer < ActionMailer::Base
    before_create :log_args
    around_create :rescue_from_errors

    def user_registration(user)
      # this is a regular ActionMailer email method
    end

    private

    def log_args
      MailerLogger.info "[CREATE] #{args.inspect}"
    end

    def rescue_from_errors
      begin
        yield
      rescue
        puts 'An error occured!'
      end
    end
  end

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Add your feature tests to the rspec/cucumber test suite
  4. Commit your changes (git commit -am 'Added some feature')
  5. Push to the branch (git push origin my-new-feature)
  6. Create new Pull Request
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