Ruby on Rails

Hi guys,

The story is that I have two models Survey & Email Template as defined in a sample app:

https://gist.github.com/simon2k/5b4d4043d4b625984ca1

When I'm calling `survey.email_templates`, it fails, and I have the following error:

ActiveRecord::StatementInvalid: PG::UndefinedFunction: ERROR:  operator does not exist: character varying = integer

LINE 1: ...M "email_templates"  WHERE "email_templates"."survey_id" = 1

                                                                    ^

HINT:  No operator matches the given name and argument type(s). You might need to add explicit type casts.

: SELECT "email_templates".* FROM "email_templates"  WHERE "email_templates"."survey_id" = 1

I'm not sure whether I should treat it as a rails bug, and that rails should quote this integer, or not. I could look further into AR, if you feel, that this case should be handled. Otherwise, I'll be looking for a different solution for this challenge.

Also, I may mention source of this issue. Earlier our app was on EngineYard, where we had custom casting for this, so whenever there was an integer, it was casted into a string. Then we moved to RDS AWS, and unfortunately there we can't create castings. I dropped all of them, and I found this case. So I thought that it might be treated as a rails bug.

Regards,

Simon