method

singleton_method_added

v2.1.0 - Show latest stable - 0 notes - Class: ActiveRecord::Migration

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What's this?

singleton_method_added(sym) public

Because the method added may do an alias_method, it can be invoked recursively. We use @ignore_new_methods as a guard to indicate whether it is safe for the call to proceed.

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# File activerecord/lib/active_record/migration.rb, line 277
      def singleton_method_added(sym) #:nodoc:
        return if defined?(@ignore_new_methods) && @ignore_new_methods

        begin
          @ignore_new_methods = true

          case sym
            when :up, :down
              klass = (class << self; self; end)
              klass.send(:alias_method_chain, sym, "benchmarks")
          end
        ensure
          @ignore_new_methods = false
        end
      end

singleton_method_added

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