Greg's Books #4
Greg's Books #4
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| book, err := models.FindBookById(id) | ||
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| if book.Borrowed == false { |
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In the scenario that the err is not nil, then book is an 'empty' book object. Which would have a borrowed attribute set to its uninit'ed value, which is false. So by checking the borrowed flag before the error would mean any error in the look up would give a cannot return a book that is not borrowed error, rather than no such book error
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| var client *datastore.Client |
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I'm surprised (and disappointed in Go) that this works. I would have thought it would have to be Client, not client to have visibility outside of its own file.
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Capitalization denotes that the variable is exported from the package rather than the file - definitely makes it confusing when you see things using mystery variables defined in another file in the same package...
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