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Added Base#clear_association_cache to empty all the cached associations

#347 [Tobias Luetke]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@252 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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1 parent 951c942 commit 4b229d1034b796e316c8e18ada4b8524d0ab3976 @dhh dhh committed
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  1. +2 −0 activerecord/CHANGELOG
  2. +7 −0 activerecord/lib/active_record/associations.rb
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2 activerecord/CHANGELOG
@@ -1,5 +1,7 @@
*SVN*
+* Added Base#clear_association_cache to empty all the cached associations #347 [Tobias Luetke]
+
* Added more informative exceptions in establish_connection #356 [bitsweat]
* Fixed that options[:counter_sql] was overwritten with interpolated sql rather than original sql #355 [bitsweat]
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7 activerecord/lib/active_record/associations.rb
@@ -34,6 +34,13 @@ def self.append_features(base)
base.extend(ClassMethods)
end
+ # Clears out the association cache
+ def clear_association_cache #:nodoc:
+ self.class.reflect_on_all_associations.to_a.each do |assoc|
+ instance_variable_set "@#{assoc.name}", nil
+ end
+ end
+
# Associations are a set of macro-like class methods for tying objects together through foreign keys. They express relationships like
# "Project has one Project Manager" or "Project belongs to a Portfolio". Each macro adds a number of methods to the class which are
# specialized according to the collection or association symbol and the options hash. It works much the same was as Ruby's own attr*

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