ReadPreferable clobbers flags

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    • Type: Bug
    • Resolution: Done
    • Priority: Critical - P2
    • 2.0.5
    • Affects Version/s: 2.0.4
    • Component/s: Private API
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      Setting cursor flags on a cursor doesn't result in those flags making it to the query, because ReadPreferable clobbers them in update_options:

      https://github.com/mongodb/mongo-ruby-driver/blob/master/lib/mongo/operation/read_preferrable.rb#L33-L41

      My fix preserves any cursor flags that have been set, allowing them to actually make it to the server.

            def update_options(context)
        if context.slave_ok? || (!context.mongos? && read.slave_ok?)
          options.dup.tap do |opts|
            (opts[:flags] ||= []) << :slave_ok
          end
        else
          options
        end
      end

            Assignee:
            Emily Stolfo (Inactive)
            Reporter:
            Chris Heald
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              Created:
              Updated:
              Resolved: