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Old 01-19-2013, 08:43 PM   #250
Sabardeyn
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Posts: 629
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Join Date: May 2009
Location: The Right Coast
Device: PC (Calibre), Nexus 7 2013 (Moon+ Pro), HTC HD2/Leo (Freda)
I don't use OPDS, but in regards to custom columns, they can be used for anything. I've heard of the following types through out the forums here:
  • Last Changed (user controlled Last_Modified equivalent)
  • Complex Series (expanded series sequence: series1, 2 and 3 into a single column)
  • User Ratings (since downloaded ratings have to be in the official ratings column to work, this extra rating is for the reader's rating of the book - allowing comparisons)
  • DRM (ebook has DRM on it y/n)
  • Read (whether user has read the book; could be y/n, date, checkmark, etc)
  • Version Number (for those editing ebooks, keeping track of the version in their library)
  • Purchased From (which ebook retailer they purchased from in case of corrupted files)
  • First Publication Date (date of 1st ever release of a book; helps maintain correct chronological order)
I'm sure that their are many more possibilities but those are the only ones I can recall off the top of my head. I hope the list is of help to you.

Last edited by Sabardeyn; 01-19-2013 at 08:45 PM.
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