[SOLVED] QRCode

[uxbod]

Hello:

is it possible to generate a QR Code using Aeroo ? I guess that really depends on the barcode() command does it not ? Is that the stock function being called or direct from the Aeroo code base ?

Thank you.

[sraps]

Hi,
at the moment there is no built-in function for Aeroo. Moreover barcode fx is for "bar" like codes.

But you can install any QR python library, import and use it from parser. At the moment we're using QR codes this way, for ourselves.

But, we're planning to include some python native QR code generator in Aeroo package.

BR
Kaspar

[uxbod]

Evening Kaspar

Thank you for responding. May I ask which QR library you chose? am thinking this one http://pypi.python.org/pypi/qrcode/2.0 ?

BR.

P.

[uxbod]

OK. Have tried to create a new parser, after installing the Python QR library, and the following throws an error

Code: Select all

try:
    from cStringIO import StringIO
except ImportError:
    from StringIO import StringIO

import qrcode

class Parser(report_sxw.rml_parse):
    def __init__(self, cr, uid, name, context):
        super(Parser, self).__init__(cr, uid, name, context)
        self.localcontext.update({
          'makeQRcode':self.makeQRcode,
        })

    def makeQRcode(self, name):

      im = qrcode.make('%s') % name
      tf = StringIO()
      im.save(tf, 'png')
 
      return tf, 'image/png'

I took the makeQRcode section from how you do it is barcode.py. The error I am getting is

Code: Select all

Aeroo Reports: Error while generating the report.
unsupported operand type(s) for %: 'instance' and 'unicode'
unsupported operand type(s) for %: 'instance' and 'unicode'
For more reference inspect error logs.

(<type 'exceptions.Exception'>, Exception(u'Aeroo Reports: Error while generating the report.', TypeError("unsupported operand type(s) for %: 'instance' and 'unicode'",), "unsupported operand type(s) for %: 'instance' and 'unicode'", u'For more reference inspect error logs.'), <traceback object at 0x7f748a83fb90>)

Any help with resolving this would be very much appreciated.

[uxbod]

Python is a whole new learning process! Managed to resolve the issues and end up with a QRCode on my invoice

Code: Select all

try:
    from cStringIO import StringIO
except ImportError:
    from StringIO import StringIO

import qrcode

class Parser(report_sxw.rml_parse):
    def __init__(self, cr, uid, name, context):
        super(Parser, self).__init__(cr, uid, name, context)
        self.localcontext.update({
          'makeQRcode':self.makeQRcode,
        })

    def makeQRcode(self, name=None, size=2):

      self.name = name
      self.size = size

      qr = qrcode.QRCode(version=1, error_correction=qrcode.constants.ERROR_CORRECT_L, box_size=size)
      qr.add_data(name)
      qr.make(fit=True)
      im = qr.make_image()
      tf = StringIO()
      im.save(tf, 'png')

      size_x = str(im.size[0]/96.0)+'in'
      size_y = str(im.size[1]/96.0)+'in'

      return tf, 'image/png', size_x, size_y

within your ODT and frame just specify

Code: Select all

image: makeQRcode(o.number,2)

The idea will be to specify the portal web address pointing to the invoice PDF.

[troyanderson]

I am not a professional technical developer and I just want to know what sdk or component do I need so I can generate QR code in Invoice.










Tags: Generate, QR code, Invoice