Question

This is in development mode. ActiveRecord::StatementInvalid. This is an example: I have a model called DisplayAds. Now activerecord wants to query the table as display_adses instead of display_ads. I have another model called Media. Activerecord use to query the table medias. Now it wants to query a table called medium.
I know that DisplayAds is not the proper naming convention but it was working until now.

I realize I can fix this by putting set_table_name in the model.
I have not upgraded rails and everything has been working fine for months.
I have a live production version of this site and it is not experiencing this problem.
I do git status and I do not see any config files as being modified.

What could I have done to start this happening? How can I stop it?

Answer 1

Have you recently upgraded from 2.3.5/8 to 3.0.x? I had the same problem (same thing with medias).

You’ll want to add irregular Inflections in your config/initializers/inflections.rb file

 ActiveSupport::Inflector.inflections do |inflect|
    inflect.irregular 'media', 'medias'
    inflect.irregular 'display_ad', 'display_ads'
    ...
 end