On Sat, Aug 1, 2009 at 1:49 PM, Pynthon <[email protected]> wrote: > > I think that I know what you mean. And well it's 3 month's ago when I > played with Python. You mean this > > http://pastebin.com/m59ff6f6f > > Because you want return that data your need to put the [0] after is > because you only want to see the web2py info? So yes: why you don't > need to use this is normal select queries :P?
this depends on what you want, and the context. > > > Thanks! > > On 1 aug, 20:33, Yarko Tymciurak <[email protected]> wrote: > > On Sat, Aug 1, 2009 at 1:22 PM, Pynthon <[email protected]> wrote: > > > > > You mean otherwise it gets the whole dict? and now only id: 1 ? > > > > I mean select returns a list: [ ] > > > > or a list of rows (with only the columns from the table you requested - > > some, or ALL): [ { ..}, {...}, ...] > > result[0] is [ {first_row_returned}, {second_row_returned}, ...][0] > > which is just the first item in the list - {first_row_returned} > > > > You are familiar with the Python notation for lists: [] and > dictionaries: > > {}, no? > > > > > > > > > On 1 aug, 19:48, Yarko Tymciurak <[email protected]> wrote: > > > > On Sat, Aug 1, 2009 at 12:43 PM, Yarko Tymciurak <[email protected]> > > > wrote: > > > > > > > On Sat, Aug 1, 2009 at 10:41 AM, Pynthon <[email protected]> > wrote: > > > > > > >> 1. =] Nice! But watch this query: > > > > > > >> db( db.leden.info == 'Hans' ).select( db.leden.id, db.leden.naam > ) > > > > > > >> It still give me no error so if I enter a where clause the DAL > will > > > > >> get all the fields? > > > > > > >> 2. You mean if you don't use [0] this will be the output > > > > > > >> output = [1, 'name', 'info'] And to get it nice you need to use > [0]? > > > > > > > Here's the way to think of this: > > > > > > > each select from web2py returns a dictionary which represents the > rows > > > > > selected - a LIST OF ROWS: > > > > > > ...sorry... this should have said "...returns a list of > dictionaries..." > > > > > > > query_results = [ retuned_row1, returned_row2, returned_row3, ... ] > > > > > > > What is returned for each result query is a dict (not a list); > > > > > In your example: > > > > > > > output = [ {id:1, naam:'name', info:'Hans'} ] > > > > > > > db( yourQuery ).select()[0] is just the first (in your example, > only) > > > row, > > > > > so just the dict (not in a list): > > > > > {id:1, naam:'name', info:'Hans'} > > > > > > > If you had multiple results, you would have: > > > > > > > output = [ {id:1, naam:'name', info:'Hans'}, > > > > > {id:2, naam:'Hans', info:'This is a correction'}, > > > > > ...] > > > > > > > Does this make more sense? > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "web2py-users" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/web2py?hl=en -~----------~----~----~----~------~----~------~--~---
