Does intercom-rails support for rails engine?

[dieuyunchang]

Hi guys, thank you for building the great app. I got the problem with intercom when I am using engine app.

Version info

• intercom-rails version: 0.3.5
• Rails version: 5.1.4

Expected behavior

• Intercom should load the correct user inside engine app and root app.

Actual behavior

• Intercom got the latest user signed in on 2 apps. ( 2 sessions (one for root app, one for engine app) are in the same browser).

Steps to reproduce

1. Root app is using Intercom ( added config intercom.rb file)

config.user.custom_data = {
    :company_admin => Proc.new { |user| user.company_admin? },
}

2. Add new engine app inside named "ABC"
3. I create new config file intercom.rb in root_app/engines/config/initializers/intercom.rb and update

config.user.current = Proc.new { current_abc_user } #current_abc_user model class is ABC::User
config.user.custom_data = {
    :admin => Proc.new { |user| user.admin? },
}

4. The engine app raise error with user.company_admin? (because that user object model hasn't defined the method company_admin?)

Thank you. 🙇