From 909f30658bd76f338a21108d770edca517683cc2 Mon Sep 17 00:00:00 2001
From: Étienne Loks <etienne.loks@iggdrasil.net>
Date: Tue, 30 Apr 2019 13:35:06 +0200
Subject: Label generation: view to generate labels

---
 ishtar_common/views.py | 54 +++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 49 insertions(+), 5 deletions(-)

(limited to 'ishtar_common/views.py')

diff --git a/ishtar_common/views.py b/ishtar_common/views.py
index a45d4ad08..65ea70685 100644
--- a/ishtar_common/views.py
+++ b/ishtar_common/views.py
@@ -1018,17 +1018,25 @@ class DisplayItemView(IshtarMixin, TemplateView):
         return data
 
 
-class QRCodeView(IshtarMixin, LoginRequiredMixin, View):
-    def get(self, request, *args, **kwargs):
+class DynamicModelView:
+    def get_model(self, kwargs):
+        app = kwargs.get('app').replace('-', "_")
         model_name = "".join(
             [part.capitalize() for part in kwargs.get('model_name').split('-')]
         )
-        app = kwargs.get('app').replace('-', "_")
         try:
-            model = apps.get_model(app, model_name)
+            return apps.get_model(app, model_name)
+        except LookupError:
+            raise Http404()
+
+
+class QRCodeView(DynamicModelView, IshtarMixin, LoginRequiredMixin, View):
+    def get(self, request, *args, **kwargs):
+        model = self.get_model(kwargs)
+        try:
             item = model.objects.get(pk=kwargs.get("pk"))
             assert hasattr(item, 'qrcode')
-        except (LookupError, model.DoesNotExist, AssertionError):
+        except (model.DoesNotExist, AssertionError):
             raise Http404()
 
         if not item.qrcode or not item.qrcode.name:
@@ -1041,6 +1049,42 @@ class QRCodeView(IshtarMixin, LoginRequiredMixin, View):
             return HttpResponse(f.read(), content_type="image/png")
 
 
+class GenerateLabelView(IshtarMixin, LoginRequiredMixin, View):
+    def get(self, request, *args, **kwargs):
+        template_slug = kwargs.get('template_slug')
+        try:
+            tpl = models.DocumentTemplate.objects.get(
+                slug=template_slug, available=True,
+                for_labels=True
+            )
+        except models.DocumentTemplate.DoesNotExist:
+            raise Http404()
+        app, __, model_name = tpl.associated_model.klass.split(".")
+        model = apps.get_model(app, model_name)
+        # rights are managed by get_item
+        get_list = get_item(
+            model, None, model.SLUG, own_table_cols=["id"])(
+            request, no_link=True, no_limit=True)
+        try:
+            objects = [
+                model.objects.get(pk=int(dct["id"]))
+                for dct in json.loads(get_list.content.decode("utf-8"))["rows"]
+            ]
+        except model.DoesNotExist:
+            raise Http404()
+        document = tpl.publish_labels(objects)
+        if not document:
+            return HttpResponse(content_type='text/plain')
+        with open(document, "rb") as f:
+            response = HttpResponse(
+                f.read(),
+                content_type="application/vnd.oasis.opendocument.text"
+            )
+            response['Content-Disposition'] = 'attachment; filename={}'.format(
+                document.split(os.sep)[-1])
+            return response
+
+
 class GlobalVarEdit(IshtarMixin, AdminLoginRequiredMixin, ModelFormSetView):
     template_name = 'ishtar/formset.html'
     model = models.GlobalVar
-- 
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