Class: DataMapper::Validate::WithinValidator

Inherits:
GenericValidator show all
Defined in:
lib/dm-validations/within_validator.rb

Overview

Author:

  • Guy van den Berg

Since:

  • 0.9

Instance Attribute Summary

Attributes inherited from GenericValidator

#if_clause, #unless_clause

Instance Method Summary collapse

Methods inherited from GenericValidator

#==, #add_error, #execute?, #field_name

Constructor Details

#initialize(field_name, options = {}) ⇒ WithinValidator

Returns a new instance of WithinValidator.

Since:

  • 0.9



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# File 'lib/dm-validations/within_validator.rb', line 10

def initialize(field_name, options={})
  super
  @field_name, @options = field_name, options
  @options[:set] = [] unless @options.has_key?(:set)
end

Instance Method Details

#call(target) ⇒ Object

Since:

  • 0.9



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# File 'lib/dm-validations/within_validator.rb', line 16

def call(target)
  includes = @options[:set].include?(target.send(field_name))
  return true if includes

  field_name = Extlib::Inflection.humanize(@field_name)
  if @options[:set].is_a?(Range)
    if @options[:set].first != -n && @options[:set].last != n
      error_message = @options[:message] || "%s must be between %s and %s".t(field_name, @options[:set].first, @options[:set].last)
    elsif @options[:set].first == -n
      error_message = @options[:message] || "%s must be less than %s".t(field_name, @options[:set].last)
    elsif @options[:set].last == n
      error_message = @options[:message] || "%s must be greater than %s".t(field_name, @options[:set].first)
    end
  else
    error_message = "%s must be one of [%s]".t(field_name, @options[:set].join(', '))
  end

  add_error(target, error_message , @field_name)
  return false
end

#n ⇒ Object

Since:

  • 0.9



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# File 'lib/dm-validations/within_validator.rb', line 37

def n
  1.0/0
end