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-rwxr-xr-xactiverecord/lib/active_record/associations.rb6
1 files changed, 4 insertions, 2 deletions
diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index e542e8d85a..654b24d71c 100755
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -955,7 +955,7 @@ module ActiveRecord
# Don't use a before_destroy callback since users' before_destroy
# callbacks will be executed after the association is wiped out.
old_method = "destroy_without_habtm_shim_for_#{reflection.name}"
- class_eval <<-end_eval
+ class_eval <<-end_eval unless method_defined?(old_method)
alias_method :#{old_method}, :destroy_without_callbacks
def destroy_without_callbacks
#{reflection.name}.clear
@@ -1351,7 +1351,9 @@ module ActiveRecord
defined_callbacks = options[callback_name.to_sym]
if options.has_key?(callback_name.to_sym)
class_inheritable_reader full_callback_name.to_sym
- write_inheritable_array(full_callback_name.to_sym, [defined_callbacks].flatten)
+ write_inheritable_attribute(full_callback_name.to_sym, [defined_callbacks].flatten)
+ else
+ write_inheritable_attribute(full_callback_name.to_sym, [])
end
end
end