[NTG-context] Django: using ConTeXT mkiv to output PDF

Hans Hagen pragma at wxs.nl
Sat Jan 27 11:18:57 CET 2018


On 1/26/2018 7:41 PM, kaddour kardio wrote:
>     def courrier_mkiv(request, pk2, pk1):
>          entry = Courrier.objects.get(pk=pk2)
>          cource = Patient.objects.get(pk=pk1)
>          context = dict({'courrier': entry, 'patient': cource})
>          # buffer = BytesIO()
>          template = get_template('courrier/courrier.mkiv')
>          rendered_tpl = template.render(context, request).encode('utf-8')
>          with tempfile.TemporaryDirectory() as tempdir:
>          # mtxrun --path=/data/foo --script context
>              process = Popen(['mtxrun', '--path', tempdir,
>                              '--script=context'
>                              '--result'],
>                              stdin=PIPE,
>                              stdout=PIPE,
>                              )
>              process.communicate(rendered_tpl)
>          with open(os.path.join(tempdir, 'textput.pdf'), 'rb') as f:
>              pdf = f.read()
>          r = HttpResponse(content_type='application/pdf')
>          r.write(pdf)
>          return r
> 
> 
> i tried this without success :(
> the only workaround u've found for now is to render a tex file and 
> copile it manually.
I have no clue what you do, but just running context should nto be that 
hard. And yes, you need a file (no piping of stdin) as there are 
normally multiple runs needes. Also, mkiv assumes that there is a file 
(tex, xml, ...) as it's actually an indirect process: if you run 
"context foo.tex" on the console you will see what gets actually called 
and the file loaded is "cont-yes.mkiv" which in turn will load whatever 
is needed as source.

Hans


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