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removes unnecessary assignment and local variable in AR::Base#subclasses, and revises its rdoc

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This commit is contained in:
Xavier Noria
2010-04-13 16:11:36 -07:00
parent c88b9337cf
commit 0e274639b4
1 changed files with 2 additions and 3 deletions
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5
activerecord/lib/active_record/base.rb
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@@ -1275,11 +1275,10 @@ module ActiveRecord #:nodoc:
with_scope(method_scoping, :overwrite, &block)
end
# ActiveRecord::Base utilizes the inherited hook to know about new subclasses.
# You can access the list of currently loaded ActiveRecord::Base subclasses using this accessor.
# Returns a list of all subclasses of this class, meaning all descendants.
def subclasses
@@subclasses[self] ||= []
@@subclasses[self] + extra = @@subclasses[self].inject([]) {|list, subclass| list + subclass.subclasses }
@@subclasses[self] + @@subclasses[self].inject([]) {|list, subclass| list + subclass.subclasses }
end
public :subclasses