I have a form which allows a user to download a CSV, given a batch number,
without having to leave the page. However, I'd like to allow form
re-submission, since the user might want to run the CSV export several
times. Web2py.js disables buttons on form submission, but is there a
simple way to suppress this behaviour for a single form? (I've found I can
replace the form's .submit() in Javascript, but that seems like
overengineering, and I'd end up putting boilerplate in any number of views)
def search():
export_form = FORM(LABEL('Export batch #'),
DIV(
INPUT(_type='text', _name='number', _class="span2",
_id="appendedInputButton"),
BUTTON(icon_text('Export', 'print'),
_type='submit', _class='btn'), _class='input-append',
),
_action=URL(export, extension='csv')
)
return dict(export_form=export_form)
def export():
query = idb.tutor_fee.batch == request.vars.number
tutors = idb(query).select(idb.tutor_fee.ALL)
return dict(tutors=tutors)
search.html
{{extend 'layout.html'}}
...
{{=export_form}}
export.csv:
{{
import cStringIO
stream = cStringIO.StringIO()
tutors.export_to_csv_file(stream)
response.headers['Content-Type']='text/csv'
response.write(stream.getvalue(), escape=False)
}}
--
Resources:
- 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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