Suppose you want to make an AJAX call that starts a file download.
How can you do that?
1. form submission
2. a element href
3. iframe
Too complex!
of course *web2py* comes to rescue...
BIG NOTE: the following is based on 'data:' url type and was tested
only on FF and chrome. I do not have
IE but I suppose that is not compatible with the standard!
In your view put a web2py ajax call similar to the following wherever
you need it:
ajax('%s',[],':eval');" % URL('gen_pdf')
ex.
{{=A(T('be brave!'), _onclick="ajax('%s',[],':eval');" %
URL('gen_pdf'), _class='button')}}
in the controller use embed64.
def gen_pdf():
from gluon.contrib.pyfpdf import FPDF
pdf=FPDF()
pdf.add_page()
pdf.set_font('Arial','B',16)
pdf.cell(40,10,'Hello World at %s!' % request.now)
doc=pdf.output(dest='S')
doc64=embed64(data=doc,extension='application/pdf')
return 'window.location="%s";' % doc64
have fun!
mic
