Class: Mongoid::Validatable::NumericalityValidator

Relationships & Source Files
Super Chains via Extension / Inclusion / Inheritance
Class Chain: self, ActiveModel::Validations::NumericalityValidator
Instance Chain: self, ActiveModel::Validations::NumericalityValidator
Inherits:	ActiveModel::Validations::NumericalityValidator Object ActiveModel::Validations::NumericalityValidator Mongoid::Validatable::NumericalityValidator
Defined in:	lib/mongoid/validatable/numericality.rb

Overview

A specialization of the ActiveModel numericality validator, which adds logic to recognize and accept ::BSON::Decimal128 as a number.

Instance Method Summary

#validate(record)

Reimplements EachValidator#validate in order to work around Mongoid’s nonstandard type-casting of ::String values.
#prepare_value_for_validation(value, _record, _attr_name) private

Ensure that ::BSON::Decimal128 is treated as a BigDecimal during the validation step.
#raw_value_for_validation(record, attr) private

Fetches the raw value from the record, prior to any typecasting being applied.

Instance Method Details

#prepare_value_for_validation(value, _record, _attr_name) (private)

Ensure that ::BSON::Decimal128 is treated as a BigDecimal during the validation step.

[ GitHub ]

# File 'lib/mongoid/validatable/numericality.rb', line 26


def prepare_value_for_validation(value, _record, _attr_name)
  value.is_a?(BSON::Decimal128) ? value.to_big_decimal : value
end

#raw_value_for_validation(record, attr) (private)

Fetches the raw value from the record, prior to any typecasting being applied.

[ GitHub ]

# File 'lib/mongoid/validatable/numericality.rb', line 32


def raw_value_for_validation(record, attr)
  attribute = record.database_field_name(attr)
  return nil if record.relations.key?(attribute)

  record.read_attribute_before_type_cast(attribute)
end

#validate(record)

Reimplements EachValidator#validate in order to work around Mongoid’s nonstandard type-casting of ::String values.

Parameters:

record (Document) —

The document to validate.

[ GitHub ]

# File 'lib/mongoid/validatable/numericality.rb', line 12


def validate(record)
  attributes.each do |attribute|
    value = raw_value_for_validation(record, attribute)
    next if (value.nil? && options[:allow_nil]) || (value.blank? && options[:allow_blank])

    value = prepare_value_for_validation(value, record, attribute)
    validate_each(record, attribute, value)
  end
end