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Class: ActiveRecord::Validations::NumericalityValidator

Do not use. This class is for internal use only.

Constant Summary

::ActiveModel::Validations::Comparability - Included

COMPARE_CHECKS

::ActiveModel::Validations::NumericalityValidator - Inherited

HEXADECIMAL_REGEX, INTEGER_REGEX, NUMBER_CHECKS, RANGE_CHECKS, RESERVED_OPTIONS

Class Method Summary

::ActiveModel::EachValidator - Inherited

.new

Returns a new validator instance.

::ActiveModel::Validator - Inherited

.kind

Returns the kind of the validator.
.new

Accepts options that will be made available through the options reader.

Instance Attribute Summary

::ActiveModel::EachValidator - Inherited

#attributes

::ActiveModel::Validator - Inherited

#options

Instance Method Summary

::ActiveModel::Validations::NumericalityValidator - Inherited

#check_validity!, #validate_each, #allow_only_integer?, #filtered_options, #is_hexadecimal_literal?, #is_integer?, #is_number?, #option_as_number, #parse_as_number, #parse_float, #prepare_value_for_validation, #record_attribute_changed_in_place?, #round

::ActiveModel::Validations::ResolveValue - Included

#resolve_value

::ActiveModel::Validations::Comparability - Included

#error_options

::ActiveModel::EachValidator - Inherited

#check_validity!

Hook method that gets called by the initializer allowing verification that the arguments supplied are valid.
#validate

Performs validation on the supplied record.
#validate_each

Override this method in subclasses with the validation logic, adding errors to the records errors array where necessary.
#prepare_value_for_validation

::ActiveModel::Validator - Inherited

#kind

Returns the kind for this validator.
#validate

Override this method in subclasses with validation logic, adding errors to the records errors array where necessary.

Constructor Details

This class inherits a constructor from ActiveModel::EachValidator

Instance Method Details

#column_precision_for(record, attribute) (private)

[ GitHub ] 

  


# File 'activerecord/lib/active_record/validations/numericality.rb', line 13



def column_precision_for(record, attribute)
  record.class.type_for_attribute(attribute.to_s)&.precision
end


  








  

    #column_scale_for(record, attribute)   (private)
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/validations/numericality.rb', line 17



def column_scale_for(record, attribute)
  record.class.type_for_attribute(attribute.to_s)&.scale
end


  








  

    #validate_each(record, attribute, value, precision: nil, scale: nil)  
  

  [ GitHub ]


  

  


# File 'activerecord/lib/active_record/validations/numericality.rb', line 6



def validate_each(record, attribute, value, precision: nil, scale: nil)
  precision = [column_precision_for(record, attribute) || Float::DIG, Float::DIG].min
  scale     = column_scale_for(record, attribute)
  super(record, attribute, value, precision: precision, scale: scale)
end