Class: DataMapper::Validate::RequiredFieldValidator

Inherits:
GenericValidator show all
Defined in:
lib/dm-validations/required_field_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 = {}) ⇒ RequiredFieldValidator

Returns a new instance of RequiredFieldValidator.

Since:

  • 0.9


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

def initialize(field_name, options={})
  super
  @field_name, @options = field_name, options
end

Instance Method Details

#call(target) ⇒ Object

Since:

  • 0.9


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# File 'lib/dm-validations/required_field_validator.rb', line 15

def call(target)
  value = target.validation_property_value(@field_name)
  property = target.validation_property(@field_name)
  return true if present?(value, property)

  error_message = @options[:message] || default_error(property)
  add_error(target, error_message, @field_name)

  false
end