in_row['f_file_xplatform'].retrieve(nameonly=True)
should be
db.t_products.f_file_xplatform.retrieve(
in_row['f_file_xplatform'],nameonly=True)
retrieve is a property of the field, not the value.
Anyway, you do not want to recompute the md5 every time the record is
updaded. Only when a new file is uploaded.
if request.vars.f_file_xplatform:
db.t_products.f_file_xplatform_download_name.compute=lambda r:
download_name(r,"XPLATFORM")
else:
db.t_products.f_file_xplatform_download_name.writable = False
On Thursday, 28 March 2013 06:32:19 UTC-5, smoggy wrote:
>
> Hello folks,
>
> So i want to generate a md5 hash of uploaded files. How can this be done ?
> here is my attempt
>
> with the following code i get
>
> AttributeError: 'str' object has no attribute 'retrieve'
>
> So obviously the row elements are not Field type, and since i'm a python
> newbie i couldn't figure this. Can anybody tip me on this ?
>
>
> def md5_for_file(f):
> ...
> return md5.digest()
>
> db.define_table('t_products',
> Field('id','id'),
> Field('f_file_xplatform', type='upload'),
> Field('f_file_xplatform_hash', type='string',label=T('Source File Hash')),
> Field('f_file_xplatform_download_name', 'string', compute=lambda r:
> download_name(r,"XPLATFORM")),
> )
>
> def download_name(in_row,in_os):
> try:
> tt_row = in_row['f_file_xplatform'].retrieve(nameonly=True)
> print "tt_row: " + tt_row
> t_md5 = md5_for_file(tt_row[1])
> in_row['f_file_xplatform_hash']=t_md5
> return 'blabla.'+t_md5
>
> except Exception, e:
> import traceback
> print traceback.format_exc()
>
>
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