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