Download Pathway Functionality (#38)

Co-authored-by: Tim Lorsbach <tim@lorsba.ch>
Reviewed-on: enviPath/enviPy#38

epdb/views.py

@@ -1254,6 +1254,14 @@ def package_pathway(request, package_uuid, pathway_uuid):
         if request.GET.get("last_modified", False):
             return JsonResponse({'modified': current_pathway.modified.strftime('%Y-%m-%d %H:%M:%S')})
 
+        if request.GET.get("download", False) == "true":
+            filename = f"{current_pathway.name.replace(' ', '_')}_{current_pathway.uuid}.csv"
+            csv_pw = current_pathway.to_csv()
+            response = HttpResponse(csv_pw, content_type='text/csv')
+            response['Content-Disposition'] = f'attachment; filename="{filename}"'
+
+            return response
+
         context = get_base_context(request)
         context['title'] = f'enviPath - {current_package.name} - {current_pathway.name}'