Class: NumericInclusionValidator

Inherits:
ActiveModel::Validations::InclusionValidator
  • Object
show all
Defined in:
lib/numeric_inclusion_validator.rb

Overview

Note I did want to put this validator in lib but I could not get it to load if put in app/validators. Probably something dumb I was doing, so it could be good to move this file later if you can get to the bottom of the issue. (I wondered if it was to do with load order - the model loading before the validator - although other validators are not exhibiting this issue)

This is a sub-class of the rails InclusionValidator that will use a different validation I18n message with ‘to` and `from` arguments.

Rather than “is not included in the list”, you can use the I18n args to build a more helpful more helpful message, e.g.: activerecord:

errors:
 messages:
   numeric_inclusion: "must be between %{from} and %{to}"

Instance Method Summary collapse

Instance Method Details

#validate_each(record, attribute, value) ⇒ Object 



20
21
22
23
24
25
26
27
28
 
# File 'lib/numeric_inclusion_validator.rb', line 20

def validate_each(record, attribute, value)
  delimiter = options[:in]
  exclusions = delimiter.respond_to?(:call) ? delimiter.call(record) : delimiter
  unless exclusions.send(inclusion_method(exclusions), value)
    i18n_args = options.except(:in)
                       .merge!(value: value, from: delimiter.first, to: delimiter.last)
    record.errors.add(attribute, :numeric_inclusion, i18n_args)
  end
end