Question

class Report
  include Mongoid::Document
  embeds_many :figures
end

class Figure
  include Mongoid::Document
  embedded_in :report
  field :legend
  validates_presence_of :legend
end

Yields this error message:

Figures is invalid

How can I get the plurality in the error message to agree?

Answer 1

The translation from errors into readable messages is handled by ActiveModel rather than Mongoid, and embedded models are considered to just be attributes in terms of attribute localization.

In this case, if you use the below in an i18n file you’ll get a singular form rather than plural by modifying what human_attribute_name returns for the figures attribute:

en:
    mongoid:
        attributes:
            report:
                figures: Figure