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0a79eb7889
class Person < ActiveRecord::Base
include MyValidators
validates :name, :presence => true, :uniqueness => true, :length => { :maximum => 100 }
validates :email, :presence => true, :email => true
end
[#3058 status:resolved]
Signed-off-by: José Valim <jose.valim@gmail.com>
49 lines
2.6 KiB
Ruby
49 lines
2.6 KiB
Ruby
module ActiveModel
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module Validations
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class ConfirmationValidator < EachValidator
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def validate_each(record, attribute, value)
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confirmed = record.send(:"#{attribute}_confirmation")
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return if confirmed.nil? || value == confirmed
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record.errors.add(attribute, :confirmation, :default => options[:message])
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end
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def setup(klass)
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klass.send(:attr_accessor, *attributes.map { |attribute| :"#{attribute}_confirmation" })
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end
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end
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module ClassMethods
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# Encapsulates the pattern of wanting to validate a password or email address field with a confirmation. Example:
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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, :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 as an in-memory attribute for validating the password.
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# To achieve this, the validation adds accessors to the model for the confirmation attribute. NOTE: This check is performed
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# only if +password_confirmation+ is not +nil+, and by default only on save. To require confirmation, make sure to add a presence
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# check for 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 confirmation").
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# * <tt>:on</tt> - Specifies when this validation is active (default is <tt>:save</tt>, other options <tt>:create</tt>, <tt>:update</tt>).
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# * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
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# occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The
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# method, proc or string should return or evaluate to a true or false value.
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# * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
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# not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The
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# method, proc or string should return or evaluate to a true or false value.
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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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