nthj / ignorable

Ignore columns in ActiveRecord

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ignorable

Ignore columns in ActiveRecord

Installation

Add this to your Gemfile:

gem 'ignorable'

Usage

class Topic < ActiveRecord::Base
   ignore_columns :attributes, :class, :meta_column_used_by_another_app
end

Rails Versions

Tested on Rails 3.2, Rails 4.1.0.

This gem is not needed on Rails 5.0 because an ignored_columns feature has been merged in rails/rails#21720

ignorable's Issues

ingorable should fail fast on rails >= 5.1.6 with explanation

Hi nthj,
Big thanks for the ingorable gem.
I found out, that this is now included since rails 5

It did still work with prior versions of rails 5
but since rails 5.1.6 it crashes rails (see below)

I'd like to suggest that the ignorable gem should be updated:

• to fail fast when run on rails >= 5.1.6
• to show a deprecation warning when run on rails 5 .. < 5.1.6

and give an explanation how to fix the problem,
aka how to migrate to the syntax in rails 5.

There is no good description in the rails docs, yet.
You might also want to update your readme.

This is how the bug shows up on crash:

ruby2.5/gems/2.5.0/gems/activerecord-5.1.6/lib/active_record/relation/query_methods.rb:1044:in build_select': undefined method any?' for nil:NilClass (NoMethodError)