Added loading page

cookbook/views/import_export.py

@@ -1,9 +1,10 @@
 import re
 import threading
 from io import BytesIO
+from django.core.cache import cache
 
 from django.contrib import messages
-from django.http import HttpResponseRedirect, JsonResponse
+from django.http import HttpResponse, HttpResponseRedirect, JsonResponse
 from django.shortcuts import render
 from django.urls import reverse
 from django.utils.translation import gettext as _
@@ -29,7 +30,7 @@ from cookbook.integration.recipesage import RecipeSage
 from cookbook.integration.rezkonv import RezKonv
 from cookbook.integration.saffron import Saffron
 from cookbook.integration.pdfexport import PDFexport
-from cookbook.models import Recipe, ImportLog, UserPreference
+from cookbook.models import Recipe, ImportLog, ExportLog, UserPreference
 from recipes import settings
 
 
@@ -123,13 +124,23 @@ def export_recipe(request):
                 if form.cleaned_data['all']:
                     recipes = Recipe.objects.filter(space=request.space, internal=True).all()
 
-                if form.cleaned_data['type'] == ImportExportBase.PDF and not settings.ENABLE_PDF_EXPORT:
-                    messages.add_message(request, messages.ERROR, _('The PDF Exporter is not enabled on this instance as it is still in an experimental state.'))
-                    return render(request, 'export.html', {'form': form})
                 integration = get_integration(request, form.cleaned_data['type'])
-                return integration.do_export(recipes)
+                
+                el = ExportLog.objects.create(type=form.cleaned_data['type'], created_by=request.user, space=request.space)
+
+                t = threading.Thread(target=integration.do_export, args=[recipes, el])
+                t.setDaemon(True)
+                t.start()
+
+                return JsonResponse({'export_id': el.pk})
             except NotImplementedError:
-                messages.add_message(request, messages.ERROR, _('Exporting is not implemented for this provider'))
+                return JsonResponse(
+                    {
+                        'error': True,
+                        'msg': _('Importing is not implemented for this provider')
+                    },
+                    status=400
+                )
 
     else:
         form = ExportForm(space=request.space)
@@ -145,3 +156,24 @@ def export_recipe(request):
 @group_required('user')
 def import_response(request, pk):
     return render(request, 'import_response.html', {'pk': pk})
+
+@group_required('user')
+def export_response(request, pk):
+    return render(request, 'export_response.html', {'pk': pk})
+
+
+@group_required('user')
+def export_file(request, pk):
+    
+    cacheData = cache.get('export_file_'+str(pk))
+
+    if cacheData is None:
+        el = ExportLog.objects.get(pk=pk)
+        el.possibly_not_expired = False;
+        el.save()
+        return render(request, 'export_response.html', {'pk': pk})
+
+    response = HttpResponse(cacheData['file'], content_type='application/force-download')
+    response['Content-Disposition'] = 'attachment; filename="'+cacheData['filename']+'"'
+    return response
+