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Added :counter_cache option to acts_as_tree that works just like the …

…one you can define on belongs_to #371 [Josh]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@291 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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1 parent 2dd2b56 commit f0a3397c47c557b80be516f4236a13afc7b7f65e @dhh dhh committed Dec 31, 2004
Showing with 5 additions and 2 deletions.
  1. +2 −0 activerecord/CHANGELOG
  2. +3 −2 activerecord/lib/active_record/acts/tree.rb
@@ -1,5 +1,7 @@
*SVN*
+* Added :counter_cache option to acts_as_tree that works just like the one you can define on belongs_to #371 [Josh]
+
* Fixed quoting in validates_format_of that would allow some rules to pass regardless of input #390 [Dmitry V. Sabanin]
* Fixed broken transactions that were actually only running object-level and not db level transactions [andreas]
@@ -31,11 +31,12 @@ module ClassMethods
#
# * <tt>foreign_key</tt> - specifies the column name to use for track of the tree (default: parent_id)
# * <tt>order</tt> - makes it possible to sort the children according to this SQL snippet.
+ # * <tt>counter_cache</tt> - keeps a count in a children_count column if set to true (default: false).
def acts_as_tree(options = {})
- configuration = { :foreign_key => "parent_id", :order => nil }
+ configuration = { :foreign_key => "parent_id", :order => nil, :counter_cache => nil }
configuration.update(options) if options.is_a?(Hash)
- belongs_to :parent, :class_name => name, :foreign_key => configuration[:foreign_key]
+ belongs_to :parent, :class_name => name, :foreign_key => configuration[:foreign_key], :counter_cache => configuration[:counter_cache]
has_many :children, :class_name => name, :foreign_key => configuration[:foreign_key], :order => configuration[:order], :dependent => true
end
end

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