On Sunday, November 13, 2016 at 8:57:28 PM UTC-8, lucas wrote:
>
> hey one and all,
>
> i'm reading chapter 10 in the book and it doesn't make sense and i don't
> know how to structure my code to fit the framework. it is confusing.
>
> so how about, if i explain what i'm trying to do and you'll tell me if i'm
> crazy or direct me to a direction.
>
> i have a form that allows the output of the table based on various custom
> parameters. and i allow for the choice of the output format through a
> radio input, either xml, cvs, or py. once the parameters are received from
> the form, the code queries the database, processes a custom dict based on
> the users customs parameters from the form, and then attempts to export
> that dict as a one of the three formats and sends the stream to the
> requesting user for them to have on their computer.
>
> the main snippet looks like:
>
> dct = {}
> dct['version'] = qry[0][3]
> dct['chromosome'] = qry[0][1]
> dct['sequence_i'] = seqi
> dct['binary_sequence'] = bseq
> dct = [dct]
> if (file_return == 'xml'):
> response.dct = dct
> return dict("hsDNA_%s_IQa.xml" % (qry[0][1]), dct)
> elif (file_return == 'csv'):
> response.view = 'generic.csv'
> return dict(filename="hsDNA_%s_IQa.csv" % (qry[0][1]),
> csvdata=dct)
> else:
> pass
>
> i get a 405 error on the cvs try and i don't know how to write the code
> under the xml section. i'm not ready to tackle the py section where pass
> is yet.
>
> ok, let me know, lucas
>
If it's any help, the appadmin.py for returning a CSV is
def csv():
import gluon.contenttype
response.headers['Content-Type'] = \
gluon.contenttype.contenttype('.csv')
db = get_database(request)
query = get_query(request)
if not query:
return None
response.headers['Content-disposition'] = 'attachment;
filename=%s_%s.csv'\
% tuple(request.vars.query.split('.')[:2])
return str(db(query, ignore_common_filters=True).select())
In this case, query is from the form where you say something like
"(db.tablenm.id > 400) & (db.tablenm.fault.contains("user")"
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