class QRCode(object):
def __init__(self, w, h, message, **kwargs):
self.qrc = QRChart(w, h, **kwargs)
self.qrc.add_data(message)
def getPngImage(self, w, h, fgcol, bgcol):
w = int(w)
h = int(h)
# img = Image.new('RGB', (w, h), bgcol)
# d = ImageDraw.Draw(img)
# for bx, bw in bars:
# d.rectangle(((bx, 0), (bx+bw-1, h-1)), fgcol)
# del d
import urllib2
opener = urllib2.urlopen(self.qrc.get_url())
if opener.headers['content-type'] != 'image/png':
raise Exception('Server responded with a ' \
'content-type of %s' % opener.headers['content-type'])
stream = opener.read()
opener.close()
img = Image.open(StringIO.StringIO(stream))
return img
class QRCode(object):
def __init__(self, w, h, message, **kwargs):
self.qrc = QRChart(w, h, **kwargs)
self.qrc.add_data(message)
def getPngImage(self, w, h, fgcol, bgcol):
w = int(w)
h = int(h)
# img = Image.new('RGB', (w, h), bgcol)
# d = ImageDraw.Draw(img)
# for bx, bw in bars:
# d.rectangle(((bx, 0), (bx+bw-1, h-1)), fgcol)
# del d
import urllib2
opener = urllib2.urlopen(self.qrc.get_url())
if opener.headers['content-type'] != 'image/png':
raise Exception('Server responded with a ' \
'content-type of %s' % opener.headers['content-type'])
stream = opener.read()
opener.close()
img = Image.open(StringIO.StringIO(stream))
return img
def qr_code(data, size=125):
chart = QRChart(size, size)
chart.add_data(data)
chart.set_ec('H', 0)
return {'qr_code': chart.get_url(),
'type': 'url'
}
def generate_qr_code(bird):
# try / except here because we rely on an external service.
try:
from pygooglechart import QRChart
# Create a 125x125 QR code chart
chart = QRChart(125, 125)
# Add the text
string = 'BirdName: ' + bird.name + '\n Birthday: ' + bird.date_of_birth.__str__(
) + '\n URL: https://zongbird-db.lan.ini.uzh.ch' + bird.get_absolute_url(
)
chart.add_data(string)
# "Level H" error correction with a 0 pixel margin
chart.set_ec('H', 0)
# get url
a = chart.get_url()
return a
except:
return []
def submit_job(request):
#if request.method not in ["POST", "PUT"]:
# return Http404()
params = dict([item for item in request.REQUEST.items() if item[1]])
customer = next(iter(Customer.objects.filter(id=params["customer"])),\
None)
if customer is None:
return Http404()
participant = next(iter(Participant.objects.filter(\
email=params["email"])),\
None)
#if participant:
# return Http404()
participant = Participant.objects.create(customer=customer,
first_name=params["first_name"],
last_name=params["last_name"],
email=params["email"],
payload=params['payload'])
participant.save()
participant.code = generate_key()
participant.save()
# Create a 125x125 QR code chart
chart = QRChart(250, 250)
# Add the text
chart.add_data(participant.code)
# "Level H" error correction with a 0 pixel margin
chart.set_ec('H', 0)
# Download
return HttpResponse(chart.get_url())
def qr_code(data, size=125):
chart = QRChart(size, size)
chart.add_data(data)
chart.set_ec('H', 0)
return {'qr_code': chart.get_url(), 'type': 'url'}
