instance method `add_on_blank`

Ruby on Rails 4.0.13

Since v3.0.20 Last seen in v4.2.9

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9

Compare with:

add_on_blank(attributes, options = {})

Will add an error message to each of the attributes in attributes that is blank (using Object#blank?).

person.errors.add_on_blank(:name)
person.errors.messages
# => {:name=>["can't be blank"]}

Parameters

attributes req
options opt = {}

Source

# File activemodel/lib/active_model/errors.rb, line 321
    def add_on_blank(attributes, options = {})
      Array(attributes).each do |attribute|
        value = @base.send(:read_attribute_for_validation, attribute)
        add(attribute, :blank, options) if value.blank?
      end
    end

Defined in activemodel/lib/active_model/errors.rb line 321 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveModel::Errors

Signature

Parameters