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are your views handling more than they should?
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are you sending too many queries to db?
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are you DRY?
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are your controller actions doing too much?
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are your actions/methods doing unnecessary work?
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are you hitting the database (insert, update, etc.) when you don’t need to?
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are you duplicating view code?
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can you think of a way to DRY your todo model? it seems that we’re repeating ourselves in all of the status related methods.
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do you have the right schema and db structure?