Default Locale Slug is emptied, when another Locale has the same value

[wzowee]

When creating a document with a localized title and slug based off of this title, if only the english locale value is set first, and then another locale is set with the same value - the english slug value is removed.

This is very similar to an older issue #153 however the flow that surfaces it is.

page = PageSlugLocalized.create!(title:"Title On English") 
# page["_slugs"] returns {"en" => ["title-on-english"]}

# Switch Locales
I18n.locale = "nl"
page.update_attributes(title:"Title On English")

# page["_slugs"] now returns {"en" => [], "nl" => ["title-on-english"]} 

Some environment versions:
Rails 4.2.0
Ruby 2.1.1p76
mongoid-slug (4.0.0)

[onomated]

+1

[dblock]

Care to write a spec for this, @wzowee or @onomated. Lets fix it.

[wzowee]

Have created a spec based on my issue description above - it's passing 👍 I should be back in the code base where I was having this issue originally this week so will check in see if it's still a problem and if the spec correctly covers the issue I'm seeing there.

[wzowee]

Ok I can reproduce the error now - I have I18n Fallbacks enabled and this is causing the issue.

See my recent commit where all I have done is added a require to "i18n/backend/fallbacks" this is enough to cause a number of specs to fail, in my actual app I also have the fallbacks properly mapped but adding the require here has been enough to cause the issue.

If I comment out the following line https://github.com/digitalplaywright/mongoid-slug/blob/master/lib/mongoid/slug.rb#L183 then the new spec passes but others of course fail.

[dblock]

This is helpful, @wzowee do you think you can turn this into a single failing spec in this project? I mean something we'll be able to commit with a fix?

[wzowee]

I've broken this out into a seperate fallback_spec.rb spec in my fork. However there is an issue where the use of require "i18n/backend/fallbacks" in fallback_spec.rb is causing tests in slug_spec.rb to fail. I'm unsure of a way to correctly isolate the inclusion of I18n Fallbacks - have asked a question on stack overflow - http://stackoverflow.com/questions/32750536/isolate-a-required-class-within-the-scope-of-a-single-spec - but no response. Any thoughts?

[dblock]

I think there's no way to unload something easily without having intimate knowledge of it, but maybe there's a way to do two test runs in Rakefile? Either way we need to understand why it's failing and fix it now :)

[dblock]

Bump @wzowee I'd like a fix for this still, looks like you got pretty far.