calculate qrcode_base64 on the fly
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27
src/tickets/migrations/0003_auto_20170819_2309.py
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27
src/tickets/migrations/0003_auto_20170819_2309.py
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@ -0,0 +1,27 @@
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# -*- coding: utf-8 -*-
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# Generated by Django 1.10.5 on 2017-08-19 21:09
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from __future__ import unicode_literals
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from django.db import migrations
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class Migration(migrations.Migration):
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dependencies = [
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('tickets', '0002_auto_20170819_2222'),
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]
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operations = [
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migrations.RemoveField(
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model_name='discountticket',
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name='qrcode_base64',
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),
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migrations.RemoveField(
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model_name='shopticket',
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name='qrcode_base64',
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),
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migrations.RemoveField(
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model_name='sponsorticket',
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name='qrcode_base64',
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),
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]
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@ -28,17 +28,12 @@ class TicketType(CreatedUpdatedModel, UUIDModel):
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class BaseTicket(CreatedUpdatedModel, UUIDModel):
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qrcode_base64 = models.TextField(null=True, blank=True)
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ticket_type = models.ForeignKey('TicketType')
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checked_in = models.BooleanField(default=False)
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class Meta:
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abstract = True
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def save(self, **kwargs):
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self.qrcode_base64 = self.get_qr_code()
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super().save(**kwargs)
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def _get_token(self):
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return hashlib.sha256(
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'{_id}{secret_key}'.format(
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@ -47,7 +42,7 @@ class BaseTicket(CreatedUpdatedModel, UUIDModel):
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).encode('utf-8')
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).hexdigest()
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def get_qr_code(self):
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def get_qr_code_base64(self):
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qr = qrcode.make(
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self._get_token(),
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version=1,
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@ -59,7 +54,7 @@ class BaseTicket(CreatedUpdatedModel, UUIDModel):
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return qrcode_base64
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def get_qr_code_url(self):
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return 'data:image/png;base64,{}'.format(self.qrcode_base64)
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return 'data:image/png;base64,{}'.format(self.get_qr_code_base64)
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def generate_pdf(self):
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generate_pdf_letter(
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