Q: dynamic playlist of unrated songs

[D. R. Evans]

Ben K said the following at 06/28/2009 07:22 PM :
> Actually the last time I looked at the source, an unrated song IS the same
> as a zero rating. The DB stores unrated songs' rating as zero, but it should
> probably be null. If people are happy for this to change I'll see if I can
> write a patch tonight.

Yes; it is conceptually completely different to say "I have formed no
opinion about this song" than to say "My opinion of this song is that is
worthless".

Reading later in this thread, I am astounded that there is any debate about
this. The concepts are totally different.

For example, If I ask "What is the cardinality of set X?" then the answer
"zero" is profoundly different from the answer "I don't know".

(Or to give an example closer to home: if someone asks me "How many people
use amarok?", would the answer "zero" be acceptable?)

So, no matter how it is implemented, there should be a way to distinguish a
zero rating from "unrated".

I thought that was what the <blank> option was intended to do when
filtering according to rating, but apparently that's not so. It's not at
all obvious what the <blank> option is there for.

  Doc

-- 
Web:  http://www.sff.net/people/N7DR

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