Class: ActiveModel::Validations::NumericalityValidator
- Inherits:
-
EachValidator
- Object
- ActiveModel::Validator
- EachValidator
- ActiveModel::Validations::NumericalityValidator
- Defined in:
- activemodel/lib/active_model/validations/numericality.rb
Overview
:nodoc:
Constant Summary collapse
- CHECKS =
{ greater_than: :>, greater_than_or_equal_to: :>=, equal_to: :==, less_than: :<, less_than_or_equal_to: :<=, odd: :odd?, even: :even?, other_than: :!= }.freeze
- RESERVED_OPTIONS =
CHECKS.keys + [:only_integer]
- INTEGER_REGEX =
/\A[+-]?\d+\z/
Instance Attribute Summary
Attributes inherited from EachValidator
Attributes inherited from ActiveModel::Validator
Instance Method Summary collapse
Methods inherited from EachValidator
Methods inherited from ActiveModel::Validator
#initialize, kind, #kind, #validate
Constructor Details
This class inherits a constructor from ActiveModel::EachValidator
Instance Method Details
#check_validity! ⇒ Object
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# File 'activemodel/lib/active_model/validations/numericality.rb', line 16 def check_validity! keys = CHECKS.keys - [:odd, :even] .slice(*keys).each do |option, value| unless value.is_a?(Numeric) || value.is_a?(Proc) || value.is_a?(Symbol) raise ArgumentError, ":#{option} must be a number, a symbol or a proc" end end end |
#validate_each(record, attr_name, value) ⇒ Object
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# File 'activemodel/lib/active_model/validations/numericality.rb', line 25 def validate_each(record, attr_name, value) came_from_user = :"#{attr_name}_came_from_user?" if record.respond_to?(came_from_user) if record.public_send(came_from_user) raw_value = record.read_attribute_before_type_cast(attr_name) elsif record.respond_to?(:read_attribute) raw_value = record.read_attribute(attr_name) end else before_type_cast = :"#{attr_name}_before_type_cast" if record.respond_to?(before_type_cast) raw_value = record.public_send(before_type_cast) end end raw_value ||= value if record_attribute_changed_in_place?(record, attr_name) raw_value = value end unless is_number?(raw_value) record.errors.add(attr_name, :not_a_number, **(raw_value)) return end if allow_only_integer?(record) && !is_integer?(raw_value) record.errors.add(attr_name, :not_an_integer, **(raw_value)) return end value = parse_as_number(raw_value) .slice(*CHECKS.keys).each do |option, option_value| case option when :odd, :even unless value.to_i.send(CHECKS[option]) record.errors.add(attr_name, option, **(value)) end else case option_value when Proc option_value = option_value.call(record) when Symbol option_value = record.send(option_value) end option_value = parse_as_number(option_value) unless value.send(CHECKS[option], option_value) record.errors.add(attr_name, option, **(value).merge!(count: option_value)) end end end end |