Class: DataMapper::Validate::AcceptanceValidator

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

Overview

Author:

  • Martin Kihlgren

Since:

  • 0.9

Instance Attribute Summary

Attributes inherited from GenericValidator

#if_clause, #unless_clause

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from GenericValidator

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

Constructor Details

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

Returns a new instance of AcceptanceValidator.

Since:

  • 0.9


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# File 'lib/dm-validations/acceptance_validator.rb', line 14

def initialize(field_name, options = {})
  super
  @options = options
  @field_name = field_name
  @options[:allow_nil] = true unless @options.include?(:allow_nil)
  @options[:accept] ||= ["1",1,"true",true,"t"]
  @options[:accept] = Array(@options[:accept])
end

Class Method Details

.default_message_for_field(field_name) ⇒ Object

Since:

  • 0.9


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

def self.default_message_for_field(field_name)
  '%s is not accepted'.t(Extlib::Inflection.humanize(field_name))
end

Instance Method Details

#call(target) ⇒ Object

Since:

  • 0.9


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# File 'lib/dm-validations/acceptance_validator.rb', line 23

def call(target)
  unless valid?(target)
    error_message = @options[:message] || DataMapper::Validate::AcceptanceValidator.default_message_for_field(@field_name)
    add_error(target, error_message , @field_name)
    return false
  end

  return true
end

#valid?(target) ⇒ Boolean

Returns:

  • (Boolean)

Since:

  • 0.9


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# File 'lib/dm-validations/acceptance_validator.rb', line 33

def valid?(target)
  field_value = target.instance_variable_get("@#{@field_name}")
  return true if @options[:allow_nil] && field_value.nil?
  return false if !@options[:allow_nil] && field_value.nil?

  @options[:accept].include?(field_value)
end