thanks! now how do i go about updating the book to discuss these new features?
On Sunday, June 17, 2012 9:09:33 PM UTC-7, Massimo Di Pierro wrote: > > uploading.... :-) > > On Sunday, 17 June 2012 10:40:51 UTC-5, howesc wrote: >> >> sorry if i confused you by submitting 2 non-inclusive patches. :( the >> reference patch for >> https://groups.google.com/forum/?fromgroups#!topic/web2py/mKgLFC5pxcY is >> what you applied, and with your change still works for me. >> >> if the cursor patch in this thread looks ok can you add it as well? this >> is the same patch file with updated line numbers for tip of tunk. >> >> thanks! >> >> christian >> >> On Saturday, June 16, 2012 3:04:00 PM UTC-7, Massimo Di Pierro wrote: >>> >>> In trunk with a minor change. Please make sure I did not break your >>> patch. >>> >>> massimo >>> >>> On Saturday, 16 June 2012 13:59:34 UTC-5, howesc wrote: >>>> >>>> Hello again, >>>> >>>> I wanna use cursors on my GAE queries: >>>> https://developers.google.com/appengine/docs/python/datastore/queries#Query_Cursors >>>> >>>> i have attached a patch that adds an optional parameter "reusecursor" >>>> to select on GAE. If True, and the query has a limitby, it indicates that >>>> db['_lastcursor'] will have the cursor (i didn't want to store it if you >>>> are not gonna use it because i'm not sure of the cost of getting that >>>> cursor). If a reusecursor is a string that string will be passed to the >>>> GAE query as the cursor. Note that you must use limitby on all queries >>>> that you want to return the cursor for, and that queries that use a cursor >>>> must have the exact same filters. Keep in mind that limitby will be in >>>> relation to the cursor, so in most cases you want offset of 0. >>>> >>>> my suggested patch is attached. i welcome comments. >>>> >>>> example: >>>> >>>> def test3(): >>>> cursor = request.vars.cursor or True >>>> >>>> #say the manu_item has about a hundred rows.... >>>> rows = db(db.menu_item.id>0).select(reusecursor=cursor, >>>> limitby=(0,10)) >>>> cursor = db['_lastcursor'] >>>> next_link = A('next', _href=URL(r=request, vars={'cursor':cursor})) >>>> >>>> >>>> # Use generic HTML views >>>> response.generic_patterns = ['html'] >>>> return dict( >>>> rows=rows, >>>> cursor=cursor, >>>> next_link = next_link) >>>> >>>> thanks, >>>> >>>> christian >>>> >>>
