hello, did you ever find a better solution for this?
I want to do the same thing
On Monday, September 30, 2013 at 11:33:57 AM UTC+2, step wrote:
>
> I want to use SQLFORM.grid with selectable checkboxes to serve a custom
> export function. Unlike web2py's default exportformats manager, which
> triggers each exporter function to an <a> tag, I want my exporter to
> trigger when the user clicks the form submit button. So the user flow
> involves ticking some grid row checkboxes, clicking submit, getting a Save
> As dialog, and finally saving the downloaded export data as a local file.
>
> controller:
> def export_rows(selected_ids):
> def export():
> ret = []
> rows = db(db.mytable.id.belongs(selected_ids).select()
> for row in rows:
> ret.append('%s\r\n' % myformatter(row))
> return ret
>
>
> fileext = 'tab'
> content_type = "text/tab-separated-values"
> filename = '.'.join(('test', file_ext))
> response.headers['Content-Type'] = content_type
> response.headers['Content-Disposition'] = \
> 'attachment;filename=' + filename + ';'
> raise HTTP(200, export(), **response.headers)
>
>
> return dict(grid = SQLFORM.grid(db.mytable, selectable=export_rows))
>
>
> The above code works to export the rows according to the user flow.
> However, web2py.js disables the submit button when the user clicks it and
> the button is never re-enabled, because raise HTTP transfers control away
> from the page and back to web2py, so the page is never refreshed.
> How to re-enable the submit button, or not disable it to begin with?
> TIA
>
>
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