Try this instead:
request.vars.uploaded_file.file = StringIO.StringIO(data)
On Wednesday, 17 July 2013 03:54:32 UTC-5, Gerd wrote:
>
> Hi!
>
> I have to anonymize HL7 file (replace all personal data with x). How can i
> process an uploaded file "on the fly". This is what i've tried (when it
> runs it actually saves the original file content, not the processed)
>
> *# Model*
> db.define_table('filetypes',
> Field('filetype','string'),
> Field('seperator','string'),
> Field('omit','string'),
> format='%(filetype)s'
> )
>
> db.define_table('anonymize',
> Field('filetype','reference filetypes'),
> Field('uploaded_file','upload')
> )
>
> *# Controller*
> def index():
> """
> example action using the internationalization operator T and flash
> rendered by views/default/index.html or views/generic.html
>
> if you need a simple wiki simple replace the two lines below with:
> return auth.wiki()
> """
> form = SQLFORM(db.anonymize)
>
> data = ''
> import re
> hl7 =
> {'PID':{'pattern':'PID\|','separator':'|','omit':(0,1,2,3)},'NK1':{'pattern':'NK1\|','separator':'|','omit':(0,)},'PV1':{'pattern':'PV1\|','separator':'|','omit':(0,)},'IN1':{'pattern':'IN1\|','separator':'|','omit':(0,)}}
> if request.vars.uploaded_file != None and
> request.vars.uploaded_file.filename != '':
> if re.search('|'.join([hl7[k]['pattern'] for k in hl7]),
> request.vars.uploaded_file.value):
> for line in request.vars.uploaded_file.value.splitlines():
> replaced_text = ''
> for k in hl7:
> replaced_text = '|'.join([len(val) * 'x' if idx not in
> hl7[k]['omit'] else val for idx, val in enumerate([splitted_text for
> splitted_text in line.split(hl7[k]['separator'])])]) if
> re.search(hl7[k]['pattern'],line) else replaced_text
> data += (replaced_text if replaced_text != '' else line) +
> '\n'
> request.vars.uploaded_file.value = data
> else:
> data = 'No HL7 Format'
> else:
> data = u'No file chosen'
>
> if form.process().accepted:
> response.flash = 'form accepted'
> elif form.errors:
> response.flash = 'form has errors'
> return locals()
>
> I thought that the line
> request.vars.uploaded_file.value = data
> replaces the original data of the uploaded file, so that the
> form.process() processes the new (replaced) value
>
> What i am doing wrong here?
>
> Thanks,
> Gerd
>
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