update AR::Validations::AssociatedValidator documentation [ci skip]

1 files changed, 19 insertions, 13 deletions

diff --git a/activerecord/lib/active_record/validations/associated.rb b/activerecord/lib/active_record/validations/associated.rb
index afce149da9..1fa6629980 100644
--- a/activerecord/lib/active_record/validations/associated.rb
+++ b/activerecord/lib/active_record/validations/associated.rb
@@ -1,6 +1,6 @@
 module ActiveRecord
   module Validations
-    class AssociatedValidator < ActiveModel::EachValidator
+    class AssociatedValidator < ActiveModel::EachValidator #:nodoc:
       def validate_each(record, attribute, value)
         if Array.wrap(value).reject {|r| r.marked_for_destruction? || r.valid?(record.validation_context) }.any?
           record.errors.add(attribute, :invalid, options.merge(:value => value))
@@ -9,7 +9,8 @@ module ActiveRecord
     end
 
     module ClassMethods
-      # Validates whether the associated object or objects are all valid themselves. Works with any kind of association.
+      # Validates whether the associated object or objects are all valid
+      # themselves. Works with any kind of association.
       #
       #   class Book < ActiveRecord::Base
       #     has_many :pages
@@ -18,23 +19,28 @@ module ActiveRecord
       #     validates_associated :pages, :library
       #   end
       #
-      # WARNING: This validation must not be used on both ends of an association. Doing so will lead to a circular dependency and cause infinite recursion.
+      # WARNING: This validation must not be used on both ends of an association.
+      # Doing so will lead to a circular dependency and cause infinite recursion.
       #
-      # NOTE: This validation will not fail if the association hasn't been assigned. If you want to
-      # ensure that the association is both present and guaranteed to be valid, you also need to
-      # use +validates_presence_of+.
+      # NOTE: This validation will not fail if the association hasn't been
+      # assigned. If you want to ensure that the association is both present and
+      # guaranteed to be valid, you also need to use +validates_presence_of+.
       #
       # Configuration options:
-      # * <tt>:message</tt> - A custom error message (default is: "is invalid")
+      #
+      # * <tt>:message</tt> - A custom error message (default is: "is invalid").
       # * <tt>:on</tt> - Specifies when this validation is active. Runs in all
       #   validation contexts by default (+nil+), other options are <tt>:create</tt>
       #   and <tt>:update</tt>.
-      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   occur (e.g. <tt>:if => :allow_validation</tt>, or <tt>:if => Proc.new { |user| user.signup_step > 2 }</tt>). The
-      #   method, proc or string should return or evaluate to a true or false value.
-      # * <tt>:unless</tt> - Specifies a method, proc or string to call to determine if the validation should
-      #   not occur (e.g. <tt>:unless => :skip_validation</tt>, or <tt>:unless => Proc.new { |user| user.signup_step <= 2 }</tt>). The
-      #   method, proc or string should return or evaluate to a true or false value.
+      # * <tt>:if</tt> - Specifies a method, proc or string to call to determine
+      #   if the validation should occur (e.g. <tt>if: :allow_validation</tt>,
+      #   or <tt>if: Proc.new { |user| user.signup_step > 2 }</tt>). The method,
+      #   proc or string should return or evaluate to a +true+ or +false+ value.
+      # * <tt>:unless</tt> - Specifies a method, proc or string to call to
+      #   determine if the validation should not occur (e.g. <tt>unless: :skip_validation</tt>,
+      #   or <tt>unless: => Proc.new { |user| user.signup_step <= 2 }</tt>). The
+      #   method, proc or string should return or evaluate to a +true+ or +false+
+      #   value.
       def validates_associated(*attr_names)
         validates_with AssociatedValidator, _merge_attributes(attr_names)
       end