Client side QR Codes (#4357)

* Add JS for qrcodejs

Ref: https://davidshimjs.github.io/qrcodejs/

* Simple function for rendering a QR code

* Refactor QR code view for Part

* Replace QR code view for SupplierPart

* Refactor QR codes for stock item and stock location models

* Remove base QRCodeView entirely

InvenTree/company/templates/company/supplier_part.html

@@ -270,10 +270,10 @@ src="{% static 'img/blank_image.png' %}"
 {% if barcodes %}
 
 $("#show-qr-code").click(function() {
-    launchModalForm("{% url 'supplier-part-qr' part.pk %}",
-    {
-        no_post: true,
-    });
+    showQRDialog(
+        '{% trans "Supplier Part QR Code" %}',
+        '{"supplierpart": {{ part.pk }}}'
+    );
 });
 
 $("#barcode-link").click(function() {

InvenTree/company/urls.py

@@ -26,7 +26,6 @@ manufacturer_part_urls = [
 
 supplier_part_urls = [
     re_path(r'^(?P<pk>\d+)/', include([
-        re_path('^qr_code/?', views.SupplierPartQRCode.as_view(), name='supplier-part-qr'),
         re_path('^.*$', views.SupplierPartDetail.as_view(template_name='company/supplier_part.html'), name='supplier-part-detail'),
     ]))
 

InvenTree/company/views.py

@@ -4,7 +4,7 @@ from django.urls import reverse
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import DetailView, ListView
 
-from InvenTree.views import InvenTreeRoleMixin, QRCodeView
+from InvenTree.views import InvenTreeRoleMixin
 from plugin.views import InvenTreePluginViewMixin
 
 from .models import Company, ManufacturerPart, SupplierPart
@@ -112,18 +112,3 @@ class SupplierPartDetail(InvenTreePluginViewMixin, DetailView):
     context_object_name = 'part'
     queryset = SupplierPart.objects.all()
     permission_required = 'purchase_order.view'
-
-
-class SupplierPartQRCode(QRCodeView):
-    """View for displaying a QR code for a StockItem object."""
-
-    ajax_form_title = _("Stock Item QR Code")
-    role_required = 'stock.view'
-
-    def get_qr_data(self):
-        """Generate QR code data for the StockItem."""
-        try:
-            part = SupplierPart.objects.get(id=self.pk)
-            return part.format_barcode()
-        except SupplierPart.DoesNotExist:
-            return None