def widget(request, isbn):
"""
supply info for book panel. parameter is named isbn for historical reasons. can be isbn or work_id
"""
if isbn == 'featured':
work = featured_work()
else:
if len(isbn) == 10:
isbn = regluit.core.isbn.convert_10_to_13(isbn)
if len(isbn) == 13:
try:
identifier = models.Identifier.objects.get(type='isbn',
value=isbn)
work = identifier.work
except models.Identifier.DoesNotExist:
return render(
request,
'widget.html',
{
'work': None,
},
)
else:
work = models.safe_get_work(isbn)
return render(
request,
'widget.html',
{
'work': work,
},
)
def get(self, request, *args, **kwargs):
work = request.GET.get('work', None)
if work:
try:
work = models.safe_get_work(work)
except models.Work.DoesNotExist:
raise Http404
return HttpResponse(onix.onix_feed_for_work(work),
content_type="text/xml")
facet = kwargs.get('facet', 'all')
if not facet:
return HttpResponseBadRequest(content='No facet provided')
max_records = request.GET.get('max', 100)
try:
max_records = int(max_records)
except Exception:
max_records = None
facet_class = opds.get_facet_class(facet)()
page = request.GET.get('page', None)
try:
page = int(page)
except:
page = None
feed = onix.onix_feed(facet_class, max_records, page_number=page)
return StreamingHttpResponse(feed, content_type="text/xml")
def safe_get_work(work_id):
"""
use this rather than querying the db directly for a work by id
"""
try:
work = models.safe_get_work(work_id)
except models.Work.DoesNotExist:
raise Http404
return work
def get(self, request, *args, **kwargs):
work = request.GET.get('work', None)
if work:
try:
work = models.safe_get_work(work)
except models.Work.DoesNotExist:
raise Http404
return HttpResponse(onix.onix_feed_for_work(work),
content_type="text/xml")
facet = kwargs.get('facet', 'all')
if facet:
max = request.GET.get('max', 100)
try:
max = int(max)
except:
max = None
facet_class = opds.get_facet_class(facet)()
return HttpResponse(onix.onix_feed(facet_class, max),
content_type="text/xml")
def get_edition_for_id(id_type, id_value, user=None):
''' the identifier is assumed to not be in database '''
identifiers = {id_type: id_value}
if id_type == 'http':
# check for urls implying other identifiers
identifiers.update(ids_from_urls(id_value))
for new_id_type in identifiers.keys():
idents = models.Identifier.objects.filter(
type=new_id_type,
value=identifiers[new_id_type],
)
if idents:
ident = idents[0]
return ident.edition if ident.edition else ident.work.preferred_edition
#need to make a new edition
if identifiers.has_key('goog'):
edition = add_by_googlebooks_id(identifiers['goog'])
if edition:
return edition
if identifiers.has_key('isbn'):
edition = add_by_isbn(identifiers['isbn'])
if edition:
return edition
if identifiers.has_key('oclc'):
edition = add_by_oclc(identifiers['oclc'])
if edition:
return edition
if identifiers.has_key('glue'):
try:
work = models.safe_get_work(identifiers['glue'])
return work.preferred_edition
except:
pass
if identifiers.has_key('http'):
edition = add_by_webpage(identifiers['http'], user=user)
return edition
# return a dummy edition and identifier
title = '!!! missing title !!!'
work = models.Work.objects.create(title=title)
edition = models.Edition.objects.create(title='!!! missing title !!!',
work=work)
for key in identifiers.keys():
if key == 'glue':
id_value = work.id
if key not in ('http', 'goog', 'oclc', 'isbn'):
if key in WORK_IDENTIFIERS:
edid = str(edition.id)
models.Identifier.objects.create(type='edid',
value=edid,
work=work,
edition=edition)
models.Identifier.objects.create(type=key,
value=id_value,
work=work,
edition=None)
else:
models.Identifier.objects.create(type=key,
value=id_value,
work=work,
edition=edition)
return edition