I tried the script but couldn't get through the syntax error. Sorry,
lots of commands I don't know there. :/
BR,
Jason
On Fri, 2010-01-08 at 09:17 -0800, Brian M wrote:
> I have been working on using web2py to import csv files and find that
> in general it works very well. You will need to be careful with
> pulling in the colorant and amount fields - if you use the
> csv.DictReader() to refer to columns in the CSV file by name instead
> of index you'll find that you only get the value for the *last*
> colorant and amount. In other words, just using row['Colorant'] and row
> ['Amount'] will very likely cause you to loose data - you've got 5
> 'Colorant' entries in a single row, so each one in a row simply over-
> writes the earlier ones. You will most likely need to use the
> indexes, or just rename the column headers in the csv file so they are
> unique.
>
> ~Brian
>
> On Jan 8, 4:51 am, mdipierro <mdipie...@cs.depaul.edu> wrote:
> > Something like this?
> >
> > import csv
> > reader = csv.reader(csvfile)
> > header = None
> > paints = {}
> > colorants = {}
> > for line in reader:
> > if not header: header = line
> > else:
> > row = dict([header[i],item) for i,item in enumerate(line)])
> > name = row['Color Name']
> > colorant = row['Colorant']
> > if not name in paints:
> > paints[name]=db.paint.insert(name=name)
> > if not colorant in colorants:
> > colorants[colorant]=db.colorant.insert(name=colorant)
> > db.paint_colorants.insert(paint_id=paints
> > [name],colorant_id=colorants[colorant])
> >
> > On Jan 8, 4:10 am, Jason Brower <encomp...@gmail.com> wrote:
> >
> >
> >
> > > I have data like this in a csv file....
> > > "Color Name", Base, Colorant, Amount, Colorant, Amount, Colorant,
> > > Amount, Colorant, Amount, Colorant, Amount
> > > "10 PORDRR",G,fo1,76,da1,32,ro1,111,yi1,1,,
> > > It is for a paint database.
> > > Is it at all possible to import that into this model?
> > > Normally I would just take a few minutes and do it by hand. But I have
> > > 14,000+ entries, so that's out of the question. Any ideas? In
> > > particular, how do you handle the variance in how many kinds of
> > > colorants are added. Notice in this example that is only 4 colorants,
> > > and 5+ could be in the page. (Currently from this extraction, only 5
> > > colorants and their amounts.
> >
> > > db = SQLDB('sqlite://paint.sqlite')
> >
> > > db.define_table('paint',
> > > Field('name', length=30, requires=IS_NOT_EMPTY(), unique=True),
> > > Field('base_coat', length=3, requires=IS_NOT_EMPTY()),
> > > Field('hex_color', length=6))
> >
> > > db.define_table('colorant',
> > > Field('name', length=3, requires=IS_NOT_EMPTY()))
> >
> > > db.define_table('paint_colorants',
> > > Field('paint_id', db.paint),
> > > Field('colorant_id', db.colorant),
> > > Field('units', 'integer'))
> >
> > > db.paint_colorants.paint_id.requires=IS_IN_DB(db, 'paint.id',
> > > '%(name)s')
> > > db.paint_colorants.colorant_id.requires=IS_IN_DB(db, 'paint.id',
> > > '%(name)s')
> >
> > > Best Regards,
> > > Jason Brower
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