On 11 August 2010 05:43, <[email protected]> wrote: > I'm having trouble understanding what you do with a view. > There are shows and views but there is seemingly no link > between them. > > A view will give you back a json information. > A show will render a web page with body and header info > but how do you get a view to work with a show
You don't as far as I know. quotes from TDG. just remember: lists are to views, as shows are to docs. same purpose, different scope. "Just as show functions convert documents to arbitrary output formats, CouchDB list functions allow you to render the output of view queries in any format. The powerful iterator API allows for flexibility to filter and aggregate rows on the fly, as well as outputting raw transformations for an easy way to make Atom feeds, HTML lists, CSV files, config files, or even just modified JSON." lists are good for summary data across multiple docs: doc (single JSON doc) -> view (map-reduced values from many docs, in JSON) -> list (transformed JSON in any format you like) "Because a show function will always return the same result given the same input, and can’t change anything about the environment in which it runs, it’s output can be cached and intelligently reused." shows are designed to be cacheable & side effect free - so they can operate only on a single doc doc (single JSON doc) -> show (transformed JSON in any format you like) This is covered later in the book in more detail. http://books.couchdb.org/relax/design-documents/shows http://books.couchdb.org/relax/design-documents/design-documents http://books.couchdb.org/relax/design-documents/lists http://wiki.apache.org/couchdb/Formatting_with_Show_and_List I hope I got that right. BTW re your previous email, are you doing this in Futon, from a command line with curl, how are you uploading the JSON? Give us more info. A+ Dave
