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On Monday, 18 June 2012 14:44:39 UTC-5, howesc wrote: > > 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/mKgLFC5pxcYis >>> 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 >>>>> >>>>
