After researching the forum and other locations I found the following
"solution":
the raise HTTP(200) seems to break the running submit code. As suggested
elsewhere the download should be invoked on another page. So first redirect
and than start the download.
I replaced:
selectable = [('Download selected PDFs as ZIP',lambda row :
mapping_multiple(row)),
('Download selected as EXCEL',lambda
row : mapping_multiple_excel(row))
]
by:
selectable = [('Download selected PDFs as ZIP',lambda row
:redirect(URL('default', 'downloading',
vars=dict(ids=row,
message = 'zipped PDF files',
target='make_pdf_zip')))),
('Download selected as EXCEL', lambda row
:redirect(URL('default', 'downloading',
vars=dict(ids=row,
message = 'excel',
target='make_excel')))), ]
add a controller function and view
def downloading():
ids = request.vars['ids']
target = request.vars['target']
if ids<>None and ids<>'' and len(ids)<>0:
return dict(message=T("Downloading reports"), ids=ids,
target=target)
return dict(message=T("Nothing to download"), ids=None, target='')
The view downloading.html
{{extend 'layout.html'}}
<h1>Downloading</h1>
{{=message}}<br>
<script>$(function() {
{{if ids<>None:}}
window.location.replace("{{=URL('default',target,vars=dict(ids=ids))}}");
{{pass}}
window.setTimeout(function(){
window.history.back();
}, 2000);
});
</script>
and two target functions:
def make_excel():
ids = request.vars['ids']
etc. make the excel file etc.
raise HTTP(200, buff.getvalue(), **response.headers)
def make_zip_pdf():
ids = request.vars['ids']
etc. make the pdfs and zip'm etc.
raise HTTP(200, buff.getvalue(), **response.headers)
After clicking the appropriate button a new page is shown with the message
and the file is downloaded. After 2 seconds the previous page is shown.
Not really elegant but it works.
anybody in for suggestions?
--
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- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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