79 lines
3.1 KiB
Ruby
79 lines
3.1 KiB
Ruby
|
module ActiveModel
|
||
|
|
module Validations
|
||
|
|
class ConfirmationValidator < EachValidator # :nodoc:
|
||
|
|
def initialize(options)
|
||
|
|
super({ case_sensitive: true }.merge!(options))
|
||
|
|
setup!(options[:class])
|
||
|
|
end
|
||
|
|
|
||
|
|
def validate_each(record, attribute, value)
|
||
|
|
if (confirmed = record.send("#{attribute}_confirmation"))
|
||
|
|
unless confirmation_value_equal?(record, attribute, value, confirmed)
|
||
|
|
human_attribute_name = record.class.human_attribute_name(attribute)
|
||
|
|
record.errors.add(:"#{attribute}_confirmation", :confirmation, options.except(:case_sensitive).merge!(attribute: human_attribute_name))
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
private
|
||
|
|
def setup!(klass)
|
||
|
|
klass.send(:attr_reader, *attributes.map do |attribute|
|
||
|
|
:"#{attribute}_confirmation" unless klass.method_defined?(:"#{attribute}_confirmation")
|
||
|
|
end.compact)
|
||
|
|
|
||
|
|
klass.send(:attr_writer, *attributes.map do |attribute|
|
||
|
|
:"#{attribute}_confirmation" unless klass.method_defined?(:"#{attribute}_confirmation=")
|
||
|
|
end.compact)
|
||
|
|
end
|
||
|
|
|
||
|
|
def confirmation_value_equal?(record, attribute, value, confirmed)
|
||
|
|
if !options[:case_sensitive] && value.is_a?(String)
|
||
|
|
value.casecmp(confirmed) == 0
|
||
|
|
else
|
||
|
|
value == confirmed
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
|
||
|
|
module HelperMethods
|
||
|
|
# Encapsulates the pattern of wanting to validate a password or email
|
||
|
|
# address field with a confirmation.
|
||
|
|
#
|
||
|
|
# Model:
|
||
|
|
# class Person < ActiveRecord::Base
|
||
|
|
# validates_confirmation_of :user_name, :password
|
||
|
|
# validates_confirmation_of :email_address,
|
||
|
|
# message: 'should match confirmation'
|
||
|
|
# end
|
||
|
|
#
|
||
|
|
# View:
|
||
|
|
# <%= password_field "person", "password" %>
|
||
|
|
# <%= password_field "person", "password_confirmation" %>
|
||
|
|
#
|
||
|
|
# The added +password_confirmation+ attribute is virtual; it exists only
|
||
|
|
# as an in-memory attribute for validating the password. To achieve this,
|
||
|
|
# the validation adds accessors to the model for the confirmation
|
||
|
|
# attribute.
|
||
|
|
#
|
||
|
|
# NOTE: This check is performed only if +password_confirmation+ is not
|
||
|
|
# +nil+. To require confirmation, make sure to add a presence check for
|
||
|
|
# the confirmation attribute:
|
||
|
|
#
|
||
|
|
# validates_presence_of :password_confirmation, if: :password_changed?
|
||
|
|
#
|
||
|
|
# Configuration options:
|
||
|
|
# * <tt>:message</tt> - A custom error message (default is: "doesn't match
|
||
|
|
# <tt>%{translated_attribute_name}</tt>").
|
||
|
|
# * <tt>:case_sensitive</tt> - Looks for an exact match. Ignored by
|
||
|
|
# non-text columns (+true+ by default).
|
||
|
|
#
|
||
|
|
# There is also a list of default options supported by every validator:
|
||
|
|
# +:if+, +:unless+, +:on+, +:allow_nil+, +:allow_blank+, and +:strict+.
|
||
|
|
# See <tt>ActiveModel::Validations#validates</tt> for more information
|
||
|
|
def validates_confirmation_of(*attr_names)
|
||
|
|
validates_with ConfirmationValidator, _merge_attributes(attr_names)
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|
||
|
|
end
|