worked great, thanks! On Mon, Jun 15, 2009 at 9:10 AM, Nick Johnson (Google)<nick.john...@google.com> wrote: > On Mon, Jun 15, 2009 at 5:04 PM, Jeff Enderwick <jeff.enderw...@gmail.com> > wrote: >> >> Thanks Nick. >> >> If I go down the path of building ID-based URLs in the manner you >> suggest, will I likely have substantially shorter URLs than I would >> with str(node.key())? > > If you know the model types involved (and thus don't need to include them in > the URL), then the URL will be a _lot_ shorter. If you need to include the > type names as well, it'll still be shorter, just not as much. It'll also be > a lot easier to read. > > The str(node.key()) representation is simply the Key Protocol Buffer, base64 > encoded, so it's guaranteed to be longer than parts of it, not encoded. > > -Nick Johnson > >> >> >> Thanks, >> Jeff >> >> On Mon, Jun 15, 2009 at 4:44 AM, Nick Johnson >> (Google)<nick.john...@google.com> wrote: >> > Hi Jeff, >> > >> > You're correct that the only way to access a datastore entity is to >> > provide >> > the full path to it - the key is the entity's primary (and only) key. If >> > you >> > know the entity type of each entity in the heirarchy, though, you can >> > extract the id of the entity in question and all its parents, and >> > represent >> > the ID as a delimiter-separated list of IDs, though - 1/2/3/4 - and >> > regenerate the key yourself. >> > >> > -Nick Johnson >> > >> > On Sun, Jun 14, 2009 at 5:51 PM, Jeff Enderwick >> > <jeff.enderw...@gmail.com> >> > wrote: >> >> >> >> I have possibly deep entity groups (think tree structure), but I want >> >> a URL where the user can go to a specific node, like: >> >> >> >> http://viewnode/<node-id>. >> >> >> >> I'd like to use db.get() to directly access the node rather than query >> >> based on node-id. >> >> >> >> If I build the URL based on str(node.key()), then the strings can get >> >> very big. Key.from_path() seems to want the entire path from the >> >> parent. Is it really the case that the only way to get direct access >> >> to an interior node in an entity group is provide the entire path to >> >> that node? >> >> >> >> Thanks, Jeff >> >> >> >> >> > >> > > >> > >> >> > > > > >
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