On March 25, 2011, James Westby wrote: > On Fri, 25 Mar 2011 15:11:19 +1300, Robert Collins <[email protected]> wrote: > > But how do we teach launchpadlib to do this? And how do we encode this > > in the wadl? > > My understanding, may be way off. > > Pages in collections are just links, so you can generate what you > like. You can generate the bare link to the collection to get the first > page, and then when that page is returned it would say > > next_page_link: > > "https://api.launchpad.net/devel/some_collection?start_key=endkey_of_this_ > collection > > then when the next page is needed launchpadlib simply hits that URL. > > Therefore I think this would be fairly straightforward to change in the > current webservice. It also looks as though just changing > lazr.batchnavigator will get most of the way there, so it may be that > fixing the web UI fixes the API too. >
Generally, lazr.restfulclient uses next_colletion_link to navigate the collection. There is one special case which is if the starting index requested within the collection isn't already loaded, it sets ws.start to control the starting point. In a away, launchpadlib and lazr.restful offers the slice protocol on all colletions and assume that these understands ws.start to start at any arbitrary point. The change suggested by Robert means that we should only support the iteration protocol, and maybe a slice one, where the slices aren't numeric index. -- Francis J. Lacoste [email protected]
signature.asc
Description: This is a digitally signed message part.
_______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
