Open tracking not working with Rails ahoy_email gem

问题

I am using ahoy_email gem in Rails and I am unable to make simple open tracking work, and I don't know how to debug it.

The message record is being generated when email is sent:

#<Ahoy::Message:0x000055592a4bd3a8
 id: 1,
 token: "AVKoHmuT0OxqaQRpMfNoDjzD3ibUltHL",
 to: "augusto@qounter.com",
 user_type: "User",
 user_id: 6,
 mailer: "UserMailer#welcome_email",
 subject: "Bienvendido al Sistema de Facturación de Megacentro",
 sent_at: Thu, 30 Aug 2018 21:35:44 UTC +00:00,
 opened_at: nil,
 clicked_at: nil,
 comprobante_id: nil>

My host config:

config.action_mailer.default_url_options = { host: 'megacentro.devtechperu.com' }

The sent email includes the hidden image:

<body>
  ...
  <img alt=3D"" src=3D"http://megacentro.devtechperu.com/ahoy/messages/AVKo=
HmuT0OxqaQRpMfNoDjzD3ibUltHL/open.gif" width=3D"1" height=3D"1">
</body>
</html>

But when opening the email, the opened_at field remains nil

In order to debug, I have copy pasted the appropriate URL into the browser:

http://megacentro.devtechperu.com/ahoy/messages/AVKo=
HmuT0OxqaQRpMfNoDjzD3ibUltHL/open.gif

with and without https just in case

I always get a 204 response from the server, which would mean that the Ahoy controller is not processing the url, since according to the code it should respond with the gif.

I am using Rails 5.2.1 and Ruby 2.5.1 in Ubuntu 18.04 server.

may it be a bug in latest Rails version? Any pointers towards debugging this would be appreciated.

Edit: looking at the server logs it confirms that the route is not being hit:

I, [2018-08-30T22:11:57.320881 #6906]  INFO -- : [f0912842-0b2c-4314-889b-38d813f1ea24] Started GET "/ahoy/messages/AVKo=HmuT0OxqaQRpMfNoDjzD3ibUlt/open.gif" for 179.6.208.88 at 2018-08-30 22:11:57 +0000
I, [2018-08-30T22:11:57.321749 #6906]  INFO -- : [f0912842-0b2c-4314-889b-38d813f1ea24] Processing by ApplicationController#raise_not_found as GIF
I, [2018-08-30T22:11:57.321799 #6906]  INFO -- : [f0912842-0b2c-4314-889b-38d813f1ea24]   Parameters: {"unmatched_route"=>"ahoy/messages/AVKo=HmuT0OxqaQRpMfNoDjzD3ibUlt/open"}
D, [2018-08-30T22:11:57.608802 #6906] DEBUG -- : [f0912842-0b2c-4314-889b-38d813f1ea24]   User Load (78.3ms)  SELECT  "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2  [["id", 3], ["LIMIT", 1]]
D, [2018-08-30T22:11:57.609440 #6906] DEBUG -- : [f0912842-0b2c-4314-889b-38d813f1ea24] No route matches ahoy/messages/AVKo=HmuT0OxqaQRpMfNoDjzD3ibUlt/open
I, [2018-08-30T22:11:57.609619 #6906]  INFO -- : [f0912842-0b2c-4314-889b-38d813f1ea24] Completed 204 No Content in 288ms (ActiveRecord: 159.9ms)

Edit: this route works fine in development but it raises ActionController::RoutingError in production. Hence the 204, as I rescue from this error with the 204

回答1:

The issue turned out to be these 2 lines in my routes.rb:

get '*unmatched_route', to: 'application#raise_not_found' unless Rails.env == "development"
post '*unmatched_route', to: 'application#raise_not_found' unless Rails.env == "development"

which I use to trap unmatched routes and rescue the errors. The gem's routes were never being hit in production as the unmatched route kicked in first. Removing these solved the issue.

来源：https://stackoverflow.com/questions/52105994/open-tracking-not-working-with-rails-ahoy-email-gem

标签

ruby-on-rails

ruby-on-rails-5

ahoy