Make the etickets

counter/admin.py

@@ -11,4 +11,5 @@ admin.site.register(Refilling)
 admin.site.register(Selling)
 admin.site.register(Permanency)
 admin.site.register(CashRegisterSummary)
+admin.site.register(Eticket)
 

counter/migrations/0009_eticket.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('counter', '0008_counter_token'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Eticket',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', auto_created=True, primary_key=True, serialize=False)),
+                ('banner', models.ImageField(null=True, upload_to='etickets', blank=True)),
+                ('secret', models.CharField(unique=True, verbose_name='secret', max_length=64)),
+                ('product', models.OneToOneField(verbose_name='product', related_name='eticket', to='counter.Product')),
+            ],
+        ),
+    ]

counter/migrations/0010_auto_20161003_1900.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('counter', '0009_eticket'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='eticket',
+            name='event_date',
+            field=models.DateField(blank=True, verbose_name='event date', null=True),
+        ),
+        migrations.AddField(
+            model_name='eticket',
+            name='event_title',
+            field=models.CharField(blank=True, max_length=64, verbose_name='event title', null=True),
+        ),
+    ]

counter/models.py

@@ -8,6 +8,8 @@ from django.forms import ValidationError
 from datetime import timedelta
 import random
 import string
+import os
+import base64
 
 from club.models import Club
 from accounting.models import CurrencyField
@@ -282,6 +284,9 @@ class Selling(models.Model):
     def is_owned_by(self, user):
         return user.is_owner(self.counter) and self.payment_method != "CARD"
 
+    def can_be_viewed_by(self, user):
+        return user == self.customer.user
+
     def delete(self, *args, **kwargs):
         self.customer.amount += self.quantity * self.unit_price
         self.customer.save()
@@ -427,3 +432,34 @@ class CashRegisterSummaryItem(models.Model):
     class Meta:
         verbose_name = _("cash register summary item")
 
+class Eticket(models.Model):
+    """
+    Eticket can be linked to a product an allows PDF generation
+    """
+    product = models.OneToOneField(Product, related_name='eticket', verbose_name=_("product"))
+    banner = models.ImageField(upload_to='etickets', null=True, blank=True, verbose_name=_("banner"))
+    event_date = models.DateField(_('event date'), null=True, blank=True)
+    event_title = models.CharField(_('event title'), max_length=64, null=True, blank=True)
+    secret = models.CharField(_('secret'), max_length=64, unique=True)
+
+    def __str__(self):
+        return "%s" % (self.product.name)
+
+    def get_absolute_url(self):
+        return reverse('counter:eticket_list')
+
+    def save(self, *args, **kwargs):
+        if not self.id:
+            self.secret = base64.b64encode(os.urandom(32))
+        return super(Eticket, self).save(*args, **kwargs)
+
+    def is_owned_by(self, user):
+        """
+        Method to see if that object can be edited by the given user
+        """
+        return user.is_in_group(settings.SITH_GROUPS['counter-admin']['name'])
+
+    def get_hash(self, string):
+        import hashlib, hmac
+        return hmac.new(bytes(self.secret, 'utf-8'), bytes(string, 'utf-8'), hashlib.sha1).hexdigest()
+

counter/templates/counter/eticket_list.jinja

@@ -0,0 +1,24 @@
+{% extends "core/base.jinja" %}
+
+{% block title %}
+{% trans %}Eticket list{% endtrans %}
+{% endblock %}
+
+{% block content %}
+<p><a href="{{ url('counter:new_eticket') }}">{% trans %}New eticket{% endtrans %}</a></p>
+{% if eticket_list %}
+<h3>{% trans %}Eticket list{% endtrans %}</h3>
+<ul>
+    {% for t in eticket_list  %}
+    <li><a href="{{ url('counter:edit_eticket', eticket_id=t.id) }}">{{ t }} - {{ t.secret }}</a></li>
+    {% endfor %}
+</ul>
+{% else %}
+{% trans %}There is no eticket in this website.{% endtrans %}
+{% endif %}
+{% endblock %}
+
+
+
+
+

counter/urls.py

@@ -11,6 +11,7 @@ urlpatterns = [
     url(r'^(?P<counter_id>[0-9]+)/stats$', CounterStatView.as_view(), name='stats'),
     url(r'^(?P<counter_id>[0-9]+)/login$', CounterLogin.as_view(), name='login'),
     url(r'^(?P<counter_id>[0-9]+)/logout$', CounterLogout.as_view(), name='logout'),
+    url(r'^eticket/(?P<selling_id>[0-9]+)/pdf$', EticketPDFView.as_view(), name='eticket_pdf'),
     url(r'^admin/(?P<counter_id>[0-9]+)$', CounterEditView.as_view(), name='admin'),
     url(r'^admin/(?P<counter_id>[0-9]+)/prop$', CounterEditPropView.as_view(), name='prop_admin'),
     url(r'^admin$', CounterListView.as_view(), name='admin_list'),
@@ -26,6 +27,9 @@ urlpatterns = [
     url(r'^admin/producttype/list$', ProductTypeListView.as_view(), name='producttype_list'),
     url(r'^admin/producttype/create$', ProductTypeCreateView.as_view(), name='new_producttype'),
     url(r'^admin/producttype/(?P<type_id>[0-9]+)$', ProductTypeEditView.as_view(), name='producttype_edit'),
+    url(r'^admin/eticket/list$', EticketListView.as_view(), name='eticket_list'),
+    url(r'^admin/eticket/new$', EticketCreateView.as_view(), name='new_eticket'),
+    url(r'^admin/eticket/(?P<eticket_id>[0-9]+)$', EticketEditView.as_view(), name='edit_eticket'),
     url(r'^admin/selling/(?P<selling_id>[0-9]+)/delete$', SellingDeleteView.as_view(), name='selling_delete'),
     url(r'^admin/refilling/(?P<refilling_id>[0-9]+)/delete$', RefillingDeleteView.as_view(), name='refilling_delete'),
 ]

counter/views.py

@@ -6,7 +6,7 @@ from django.forms.models import modelform_factory
 from django.forms import CheckboxSelectMultiple
 from django.core.urlresolvers import reverse_lazy, reverse
 from django.core.exceptions import PermissionDenied
-from django.http import HttpResponseRedirect
+from django.http import HttpResponseRedirect, HttpResponse
 from django.utils import timezone
 from django import forms
 from django.utils.translation import ugettext_lazy as _
@@ -20,11 +20,11 @@ from ajax_select.fields import AutoCompleteSelectField, AutoCompleteSelectMultip
 from ajax_select import make_ajax_form, make_ajax_field
 
 from core.views import CanViewMixin, CanEditMixin, CanEditPropMixin, CanCreateMixin, TabedViewMixin
-from core.views.forms import SelectUser, LoginForm
+from core.views.forms import SelectUser, LoginForm, SelectDate
 from core.models import User
 from subscription.models import Subscriber, Subscription
 from subscription.views import get_subscriber
-from counter.models import Counter, Customer, Product, Selling, Refilling, ProductType, CashRegisterSummary, CashRegisterSummaryItem
+from counter.models import Counter, Customer, Product, Selling, Refilling, ProductType, CashRegisterSummary, CashRegisterSummaryItem, Eticket
 from accounting.models import CurrencyField
 
 class GetUserForm(forms.Form):
@@ -464,6 +464,11 @@ class CounterAdminTabsMixin(TabedViewMixin):
                 'slug': 'invoices_call',
                 'name': _("Invoices call"),
                 },
+            {
+                'url': reverse_lazy('counter:eticket_list'),
+                'slug': 'etickets',
+                'name': _("Etickets"),
+                },
             ]
 
 class CounterListView(CounterAdminTabsMixin, CanViewMixin, ListView):
@@ -940,4 +945,105 @@ class InvoiceCallView(CounterAdminTabsMixin, TemplateView):
             )).exclude(selling_sum=None).order_by('-selling_sum')
         return kwargs
 
-                #).exclude(selling_sum=None).order_by('-selling_sum').all()[:100]
+class EticketListView(CounterAdminTabsMixin, CanEditPropMixin, ListView):
+    """
+    A list view for the admins
+    """
+    model = Eticket
+    template_name = 'counter/eticket_list.jinja'
+    ordering = ['id']
+    current_tab = "etickets"
+
+class EticketForm(forms.ModelForm):
+    class Meta:
+        model = Eticket
+        fields = ['product', 'banner', 'event_title', 'event_date']
+        widgets = {
+                'event_date': SelectDate,
+                }
+    product = AutoCompleteSelectField('products', show_help_text=False, label=_("Product"), required=True)
+
+class EticketCreateView(CounterAdminTabsMixin, CanEditPropMixin, CreateView):
+    """
+    Create an eticket
+    """
+    model = Eticket
+    template_name = 'core/create.jinja'
+    form_class = EticketForm
+    current_tab = "etickets"
+
+class EticketEditView(CounterAdminTabsMixin, CanEditPropMixin, UpdateView):
+    """
+    Edit an eticket
+    """
+    model = Eticket
+    template_name = 'core/edit.jinja'
+    form_class = EticketForm
+    pk_url_kwarg = "eticket_id"
+    current_tab = "etickets"
+
+class EticketPDFView(CanViewMixin, DetailView):
+    """
+    Display the PDF of an eticket
+    """
+    model = Selling
+    pk_url_kwarg = "selling_id"
+
+    def get(self, request, *args, **kwargs):
+        from reportlab.pdfgen import canvas
+        from reportlab.lib.utils import ImageReader
+        from reportlab.lib.units import cm
+        from reportlab.graphics.shapes import Drawing
+        from reportlab.graphics.barcode.qr import QrCodeWidget
+        from reportlab.graphics import renderPDF
+        self.object = self.get_object()
+        eticket = self.object.product.eticket
+        user = self.object.customer.user
+        code = "%s %s %s" % (self.object.customer.user.id, self.object.quantity, self.object.product.id)
+        code += " " + eticket.get_hash(code)[:8].upper()
+        response = HttpResponse(content_type='application/pdf')
+        response['Content-Disposition'] = 'filename="eticket.pdf"'
+        p = canvas.Canvas(response)
+        p.setTitle("Eticket")
+        im = ImageReader("core/static/core/img/eticket.jpg")
+        width, height = im.getSize()
+        size = max(width, height)
+        width = 8 * cm * width / size
+        height = 8 * cm * height / size
+        p.drawImage(im, 10 * cm, 25 * cm, width, height)
+        if eticket.banner:
+            im = ImageReader(eticket.banner)
+            width, height = im.getSize()
+            size = max(width, height)
+            width = 6 * cm * width / size
+            height = 6 * cm * height / size
+            p.drawImage(im, 1 * cm, 25 * cm, width, height)
+        if user.profile_pict:
+            im = ImageReader(user.profile_pict.file)
+            width, height = im.getSize()
+            size = max(width, height)
+            width = 150 * width / size
+            height = 150 * height / size
+            p.drawImage(im, 10.5 * cm - width / 2, 16 * cm, width, height)
+        if eticket.event_title:
+            p.setFont("Helvetica-Bold", 20)
+            p.drawCentredString(10.5 * cm, 23.6 * cm, eticket.event_title)
+        if eticket.event_date:
+            p.setFont("Helvetica-Bold", 16)
+            p.drawCentredString(10.5 * cm, 22.6 * cm, eticket.event_date.strftime("%d %b %Y"))
+        p.setFont("Helvetica-Bold", 14)
+        p.drawCentredString(10.5 * cm, 15 * cm, user.get_display_name())
+        p.setFont("Courier-Bold", 14)
+        qrcode = QrCodeWidget(code)
+        bounds = qrcode.getBounds()
+        width = bounds[2] - bounds[0]
+        height = bounds[3] - bounds[1]
+        d = Drawing(260, 260, transform=[260./width, 0, 0, 260./height, 0, 0])
+        d.add(qrcode)
+        renderPDF.draw(d, p, 10.5 * cm - 130, 6.1 * cm)
+        p.drawCentredString(10.5 * cm, 6 * cm, code)
+
+        p.showPage()
+        p.save()
+        return response
+