Silence deprecation warning generated from of a gem

Question

I am using the unscoped_associations gem in my Rails 5.0.0.1 application.

I am getting this deprecation warning:

DEPRECATION WARNING: alias_method_chain is deprecated. Please, use Module#prepend instead. From module, you can access the original method using super. (called from <top (required)> at /home/rhl/myapp/config/application.rb:8)
DEPRECATION WARNING: alias_method_chain is deprecated. Please, use Module#prepend instead. From module, you can access the original method using super. (called from <top (required)> at /home/rhl/myapp/config/application.rb:8)
DEPRECATION WARNING: alias_method_chain is deprecated. Please, use Module#prepend instead. From module, you can access the original method using super. (called from <top (required)> at /home/rhl/myapp/config/application.rb:8)

How can I silence this warning in production environment?

I have tried adding:

config.active_support.deprecation = :silence

in production.rb

But it's not working.

Answer 1

Per the documentation http://api.rubyonrails.org/classes/ActiveSupport/Deprecation/Behavior.html:

Setting behaviors only affects deprecations that happen after boot time. Deprecation warnings raised by gems are not affected by this setting because they happen before Rails boots up.

I did find, however, that if you set it before your gems are required, it will silence warnings.

For example, place this line:

ActiveSupport::Deprecation.behavior = :silence

before

Bundler.require(*Rails.groups)

and it should silence the gem warnings.

Answer 2

ActiveSupport::Deprecation.silenced = true