ActiveRecord::ConnectionAdapters::Column.new error

[dudo]

When running annotate, models fail when they define virtual columns.

Unable to annotate app/models/my_model.rb: undefined method `sql_type' for :string:Symbol

Where MyModel has

class MyModel
  def self.columns
    # Adding a virtual attribute to the model for serializer to work
    super << ActiveRecord::ConnectionAdapters::Column.new('foo', nil, :string)
  end
end

Version

• annotate version 3.0.2
• rails version 5.2.3
• ruby version 2.6.5

[icodeat9]

Did you get to solve it?