Okay simple question: What's the most efficient way to turn %arr1 into %arr2?

What I did to convert them was basically reorder by 'cat', then by 'name', and then by 'rating'. 

%arr1 = (
    { id =>  1, name => 'Frank', cat => 'Cat1', rating => 5 },
    { id =>  2, name => 'John', cat => 'Cat1', rating => 4 },
    { id =>  3, name => 'Smith', cat => 'Cat1', rating => 3 },
    { id =>  4, name => 'Smith', cat => 'Cat2', rating => 8 },
    { id =>  5, name => 'John', cat => 'Cat2', rating => 9 },
    { id =>  6, name => 'Frank', cat => 'Cat2', rating => 10 },
    { id =>  7, name => 'Frank', cat => 'Cat3', rating => 1 },
    { id =>  8, name => 'Smith', cat => 'Cat3', rating => 8 },
    { id =>  9, name => 'Frank', cat => 'Cat3', rating => 2 },
    { id =>  10, name => 'John', cat => 'Cat1', rating => 3 }
);

%arr2 = (

    { id =>  1, name => 'Frank', cat => 'Cat1', rating => 5 },
    { id => 10, name => 'John', cat => 'Cat1', rating => 3 },
    { id =>  2, name => 'John', cat => 'Cat1', rating => 4 },
    { id =>  3, name => 'Smith', cat => 'Cat1', rating => 3 },

    { id =>  6, name => 'Frank', cat => 'Cat2', rating => 10 },
    { id =>  5, name => 'John', cat => 'Cat2', rating => 9 },
    { id =>  4, name => 'Smith', cat => 'Cat2', rating => 8 },

    { id =>  7, name => 'Frank', cat => 'Cat3', rating => 1 },
    { id =>  9, name => 'Frank', cat => 'Cat3', rating => 2 },
    { id =>  8, name => 'Frank', cat => 'Cat3', rating => 8 },

);

[download]
Any help will be appreciated greatly!

Thanks,
--nutshell

In reply to Complicated, multi-level array sorting by nutshell

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