error message of a child object

class TranslationKey < ActiveRecord::Base   has_many :key_values   has_many :translation_values, :through => :key_values   validates_uniqueness_of :name, :message => "already exist in another key" end

class TranslationValue < ActiveRecord::Base   has_many :key_values   has_many :translation_keys, :through => :key_values   has_many :languages   validates_presence_of :text, :message => "can't be empty" end

in my update action of Key, if the key has non-valid value object I see this error message: "Translation values is invalid"

why don't I see: "already exist in another key" instead?

Have a look at this thread from last week, which is the same question.

thanks, looking into this thread.