OK I just put the where function in trunk but renamed it filter (sorry
for the confusion).
On Oct 28, 10:11 am, Joe Barnhart <joe.barnh...@gmail.com> wrote:
> I know, that's what I'm saying.... the word "where" suggests it is an SQL
> verb but it has nothing to do with SQL. I was just thinking it might be
> confusing to new users of w2p.
>
> On Wed, Oct 28, 2009 at 6:32 AM, mr.freeze <nat...@freezable.com> wrote:
>
> > No, anything post 'select' is done after the db call, including first
> > () and last().
>
> > On Oct 28, 2:51 am, Joe Barnhart <joe.barnh...@gmail.com> wrote:
> > > I love the functionality, but doesn't calling the function "where"
> > > conjure up the SQL WHERE clause? I might think it was doing something
> > > with SELECT...WHERE in the underlying DB.
>
> > > -- Joe B.
>
> > > On Oct 27, 10:11 pm, "mr.freeze" <nat...@freezable.com> wrote:
>
> > > > Works! Would you be interested in these for sql.py Rows class?:
>
> > > > def where(self,f):
> > > > if not self.response:
> > > > return None
> > > > rows = []
> > > > for i in range(0,len(self)):
> > > > row = self[i]
> > > > if f(row): rows.append(self.response[i])
> > > > return Rows(self._db,rows,*self.colnames)
>
> > > > def filter(self,f):
> > > > if not self.response:
> > > > return None
> > > > rows = self.response
> > > > removed = []
> > > > for i in range(0,len(self)):
> > > > row = self[i]
> > > > if f(row):
> > > > removed.append(rows[i])
> > > > rows.remove(rows[i])
> > > > return Rows(self._db,removed,*self.colnames)
>
> > > > Example:
> > > > db.define_table('things',Field('category'))
> > > > rows = db(db.things.id>0).select()
> > > > tests = rows.where(lamdba row: row.category=="test") # returns matches
> > > > rows.filter(lamdba row: row.category=="test")# removes and returns
> > > > removed
>
> > > > On Oct 27, 10:49 pm, mdipierro <mdipie...@cs.depaul.edu> wrote:
>
> > > > > Thanks. Just fixed in trunk!
>
> > > > > On Oct 27, 10:35 pm, "mr.freeze" <nat...@freezable.com> wrote:
>
> > > > > > I get a syntax error when using this. I believe line 2926 of
> > > > > > Rows.__getitem__ needs to be changed from:
>
> > > > > > if i >= len(self.response) or i < 0:
>
> > > > > > ...to...
>
> > > > > > if i >= len(self.response):
>
> > > > > > since Rows.last() returns self[-1]
>
>
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