Getting: `undefined local variable or method `to_ary' for #<Mail::FromField>`

[jurre]

Hi,

I'm running into an issue with letter_opener where Message#from, #to etc are throwing the following error: NameError: undefined local variable or methodto_ary' for #Mail::FromField:0x007fae398a28e0`

I've tracked it down to this code:

Array(@mail["from"])
=> NameError: undefined local variable or method `to_ary' for #<Mail::FromField:0x007fae398a28e0>

The strange thing is that whenever I try to do this on a Mail object created manually it works fine:

[11] pry(main)> m = Mail.new(from: "j.stender@example.com", to: "test@example.com") { content_type("text/html; charset=UTF-8"); content_transfer_encoding('quoted-printable'); body("hello!") }
=> #<Mail::Message:70297656821620, Multipart: false, Headers: <From: j.stender@example.com>, <To: test@example.com>, <Content-Type: text/html; charset=UTF-8>, <Content-Transfer-Encoding: quoted-printable>>
[12] pry(main)> Array(m["from"]).join(", ")
=> "j.stender@example.com"

I've tried using the .from syntax to access the Mail objects properties but that seems to open up another can of worms.

This seems to happen since the 2.6.1 version of the Mail gem, so I've tried updating letter_openers Mail gem but the specs also still pass just fine with that version.

This happens on ruby 2.1.3 and 2.1.4.

Hope you can help me out here, if you need any more info please let me know!

Thanks! <3

[nashby]

Can you please provide a sample application that reproduces the error?

[jurre]

On it! :)

[jurre]

Weird stuff, the example that I was making seems to work fine. I'll investigate further with our setup but I don't think this is necessarily a letter_opener issue..

[giovannibonetti]

I'm running into the same problem. It happens exactly with the "from" field, and when I call it from the console it seems to work, though. Any idea on what to do about it?

[jurre]

I've just disabled letter_opener for now, no idea what's causing this :(

[giovannibonetti]

Thanks, @jurre

[dpaluy]

I had the same issue. I disabled gem 'pry-remote'. And it solved the problem. But, after I enabled it, it still works correctly. :anguished:

[yuki24]

This must be due to some of the old versions of did_you_mean gem: https://github.com/yuki24/did_you_mean/issues/14 Are you guys using 0.8.0 or older? If so, could you upgrade it to 0.9.4 and try again? I'm so sorry about the bug.

[dpaluy]

@yuki24 You are right. That was my issue.