add_on_empty(attributes, custom_message = nil)
public
Will add an error message to
each of the attributes in
attributes that is empty.
# File activerecord/lib/active_record/validations.rb, line 54
def add_on_empty(attributes, custom_message = nil)
for attr in [attributes].flatten
value = @base.respond_to?(attr.to_s) ? @base.send(attr.to_s) : @base[attr.to_s]
is_empty = value.respond_to?(:empty?) ? value.empty? : false
add(attr, :empty, :default => custom_message) unless !value.nil? && !is_empty
end
end