def page_for_wit(request):
"""
Given a Manuscript id and the ISMI ID of a witness in it,
returns the first page of that witness.
"""
wit = int(request.GET.get("wit"))
folios = get_folios(wit)
if not folios:
return HttpResponse(dumps(-1), mimetype="text/json")
folio, _ = folios
folio_pgs = get_curr_folio_pgs(request)
page = folio_pgs.get_page(folio)
return HttpResponse(dumps(page), mimetype="text/json")
def wit_for_page(request):
"""
Gives the ISMI ID of the current witness given the current
Manuscript and current page in it. If no witness is specified
for the given page, returns -1.
"""
ms_id = int(request.GET.get("ms_id"))
page = int(request.GET.get("page"))
ms = Manuscript.objects.get(id=ms_id)
folio_pgs = get_curr_folio_pgs(request)
folio = folio_pgs.get_folio(page)
for w in ms.witnesses:
folios = get_folios(w)
if not folios:
continue
first, last = map(folio_pgs.get_page, folios)
if first and last:
if first <= page and page <= last:
return HttpResponse(dumps((str(folio), w)), mimetype="text/json")
return HttpResponse(dumps((str(folio), -1)), mimetype="text/json")
