Merge branch 'feature/export-progress' of https://github.com/vabene1111/recipes into feature/export-progress

cookbook/integration/default.py

@@ -32,11 +32,12 @@ class Default(Integration):
         return None
 
     def get_file_from_recipe(self, recipe):
+
         export = RecipeExportSerializer(recipe).data
 
         return 'recipe.json', JSONRenderer().render(export).decode("utf-8")
 
-    def get_files_from_recipes(self, recipes, cookie):
+    def get_files_from_recipes(self, recipes, el, cookie):
         export_zip_stream = BytesIO()
         export_zip_obj = ZipFile(export_zip_stream, 'w')
 
@@ -50,13 +51,20 @@ class Default(Integration):
                 recipe_stream.write(data)
                 recipe_zip_obj.writestr(filename, recipe_stream.getvalue())
                 recipe_stream.close()
+
                 try:
                     recipe_zip_obj.writestr(f'image{get_filetype(r.image.file.name)}', r.image.file.read())
                 except ValueError:
                     pass
 
                 recipe_zip_obj.close()
+
                 export_zip_obj.writestr(str(r.pk) + '.zip', recipe_zip_stream.getvalue())
+
+            el.exported_recipes += 1
+            el.msg += self.get_recipe_processed_msg(r)
+            el.save()
+
         export_zip_obj.close()
 
-        return [[ 'export.zip', export_zip_stream.getvalue() ]]
+        return [[ self.get_export_file_name(), export_zip_stream.getvalue() ]]

cookbook/integration/integration.py

@@ -1,9 +1,12 @@
+import time
 import datetime
 import json
 import traceback
 import uuid
 from io import BytesIO, StringIO
 from zipfile import BadZipFile, ZipFile
+from django.core.cache import cache
+import datetime
 
 from bs4 import Tag
 from django.core.exceptions import ObjectDoesNotExist
@@ -18,6 +21,7 @@ from cookbook.forms import ImportExportBase
 from cookbook.helper.image_processing import get_filetype, handle_image
 from cookbook.models import Keyword, Recipe
 from recipes.settings import DEBUG
+from recipes.settings import EXPORT_FILE_CACHE_DURATION
 
 
 class Integration:
@@ -61,35 +65,44 @@ class Integration:
                 space=request.space
             )
 
-    def do_export(self, recipes):
-        """
-        Perform the export based on a list of recipes
-        :param recipes: list of recipe objects
-        :return: HttpResponse with the file of the requested export format that is directly downloaded (When that format involve multiple files they are zipped together) 
-        """
 
-        files = self.get_files_from_recipes(recipes, self.request.COOKIES)
 
-        if len(files) == 1:
-            filename, file = files[0]
-            export_filename = filename
-            export_file = file
+    def do_export(self, recipes, el):
 
-        else:
-            export_filename = "export.zip"
-            export_stream = BytesIO()
-            export_obj = ZipFile(export_stream, 'w')
+        with scope(space=self.request.space):
+            el.total_recipes = len(recipes) 
+            el.cache_duration = EXPORT_FILE_CACHE_DURATION
+            el.save()
 
-            for filename, file in files:
-                export_obj.writestr(filename, file)
+            files = self.get_files_from_recipes(recipes, el, self.request.COOKIES)
 
-            export_obj.close()
-            export_file = export_stream.getvalue()
+            if len(files) == 1:
+                filename, file = files[0]
+                export_filename = filename
+                export_file = file
+
+            else:
+                #zip the files if there is more then one file
+                export_filename = self.get_export_file_name()
+                export_stream = BytesIO()
+                export_obj = ZipFile(export_stream, 'w')
+
+                for filename, file in files:
+                    export_obj.writestr(filename, file)
+
+                export_obj.close()
+                export_file = export_stream.getvalue()
+
+
+            cache.set('export_file_'+str(el.pk), {'filename': export_filename, 'file': export_file}, EXPORT_FILE_CACHE_DURATION)
+            el.running = False
+            el.save()
 
         response = HttpResponse(export_file, content_type='application/force-download')
         response['Content-Disposition'] = 'attachment; filename="' + export_filename + '"'
         return response
 
+
     def import_file_name_filter(self, zip_info_object):
         """
         Since zipfile.namelist() returns all files in all subdirectories this function allows filtering of files
@@ -126,7 +139,7 @@ class Integration:
                             for d in data_list:
                                 recipe = self.get_recipe_from_file(d)
                                 recipe.keywords.add(self.keyword)
-                                il.msg += f'{recipe.pk} - {recipe.name} \n'
+                                il.msg += self.get_recipe_processed_msg(recipe)
                                 self.handle_duplicates(recipe, import_duplicates)
                                 il.imported_recipes += 1
                                 il.save()
@@ -151,7 +164,7 @@ class Integration:
                                 else:
                                     recipe = self.get_recipe_from_file(BytesIO(import_zip.read(z.filename)))
                                 recipe.keywords.add(self.keyword)
-                                il.msg += f'{recipe.pk} - {recipe.name} \n'
+                                il.msg += self.get_recipe_processed_msg(recipe)
                                 self.handle_duplicates(recipe, import_duplicates)
                                 il.imported_recipes += 1
                                 il.save()
@@ -166,7 +179,7 @@ class Integration:
                             try:
                                 recipe = self.get_recipe_from_file(d)
                                 recipe.keywords.add(self.keyword)
-                                il.msg += f'{recipe.pk} - {recipe.name} \n'
+                                il.msg += self.get_recipe_processed_msg(recipe)
                                 self.handle_duplicates(recipe, import_duplicates)
                                 il.imported_recipes += 1
                                 il.save()
@@ -183,7 +196,7 @@ class Integration:
                                     try:
                                         recipe = self.get_recipe_from_file(d)
                                         recipe.keywords.add(self.keyword)
-                                        il.msg += f'{recipe.pk} - {recipe.name} \n'
+                                        il.msg += self.get_recipe_processed_msg(recipe)
                                         self.handle_duplicates(recipe, import_duplicates)
                                         il.imported_recipes += 1
                                         il.save()
@@ -193,7 +206,7 @@ class Integration:
                     else:
                         recipe = self.get_recipe_from_file(f['file'])
                         recipe.keywords.add(self.keyword)
-                        il.msg += f'{recipe.pk} - {recipe.name} \n'
+                        il.msg += self.get_recipe_processed_msg(recipe)
                         self.handle_duplicates(recipe, import_duplicates)
             except BadZipFile:
                 il.msg += 'ERROR ' + _(
@@ -260,7 +273,7 @@ class Integration:
         """
         raise NotImplementedError('Method not implemented in integration')
 
-    def get_files_from_recipes(self, recipes, cookie):
+    def get_files_from_recipes(self, recipes, el, cookie):
         """
         Takes a list of recipe object and converts it to a array containing each file.
         Each file is represented as an array [filename, data] where data is a string of the content of the file.
@@ -279,3 +292,10 @@ class Integration:
                 log.msg += exception.msg
         if DEBUG:
             traceback.print_exc()
+
+
+    def get_export_file_name(self, format='zip'):
+        return "export_{}.{}".format(datetime.datetime.now().strftime("%Y-%m-%d"), format)
+
+    def get_recipe_processed_msg(self, recipe):
+        return f'{recipe.pk} - {recipe.name} \n'

cookbook/integration/pdfexport.py

@@ -11,22 +11,25 @@ from cookbook.helper.image_processing import get_filetype
 from cookbook.integration.integration import Integration
 from cookbook.serializer import RecipeExportSerializer
 
-import django.core.management.commands.runserver as runserver
+from cookbook.models import ExportLog
+from asgiref.sync import sync_to_async
 
+import django.core.management.commands.runserver as runserver
+import logging
 
 class PDFexport(Integration):
 
     def get_recipe_from_file(self, file):
         raise NotImplementedError('Method not implemented in storage integration')
 
-    async def get_files_from_recipes_async(self, recipes, cookie):
+    async def get_files_from_recipes_async(self, recipes, el, cookie):
         cmd = runserver.Command()
 
         browser = await launch(
             handleSIGINT=False,
             handleSIGTERM=False,
             handleSIGHUP=False,
-            ignoreHTTPSErrors=True
+            ignoreHTTPSErrors=True,
         )
 
         cookies = {'domain': cmd.default_addr, 'name': 'sessionid', 'value': cookie['sessionid'], }
@@ -39,17 +42,28 @@ class PDFexport(Integration):
                    }
                    }
 
-        page = await browser.newPage()
-        await page.emulateMedia('print')
-        await page.setCookie(cookies)
 
         files = []
         for recipe in recipes:
-            await page.goto('http://' + cmd.default_addr + ':' + cmd.default_port + '/view/recipe/' + str(recipe.id), {'waitUntil': 'networkidle0', })
+
+            page = await browser.newPage()
+            await page.emulateMedia('print')
+            await page.setCookie(cookies)
+
+            await page.goto('http://'+cmd.default_addr+':'+cmd.default_port+'/view/recipe/'+str(recipe.id), {'waitUntil': 'domcontentloaded'})
+            await page.waitForSelector('#printReady');
+
             files.append([recipe.name + '.pdf', await page.pdf(options)])
+            await page.close();
+
+            el.exported_recipes += 1
+            el.msg += self.get_recipe_processed_msg(recipe)
+            await sync_to_async(el.save, thread_sensitive=True)()
+
 
         await browser.close()
         return files
 
-    def get_files_from_recipes(self, recipes, cookie):
-        return asyncio.run(self.get_files_from_recipes_async(recipes, cookie))
+
+    def get_files_from_recipes(self, recipes, el, cookie):
+        return asyncio.run(self.get_files_from_recipes_async(recipes, el, cookie))

cookbook/integration/recipesage.py

@@ -88,12 +88,16 @@ class RecipeSage(Integration):
 
         return data
 
-    def get_files_from_recipes(self, recipes, cookie):
+    def get_files_from_recipes(self, recipes, el, cookie):
         json_list = []
         for r in recipes:
             json_list.append(self.get_file_from_recipe(r))
 
-        return [['export.json', json.dumps(json_list)]]
+            el.exported_recipes += 1
+            el.msg += self.get_recipe_processed_msg(r)
+            el.save()
+
+        return [[self.get_export_file_name('json'), json.dumps(json_list)]]
 
     def split_recipe_file(self, file):
         return json.loads(file.read().decode("utf-8"))

cookbook/integration/saffron.py

@@ -87,10 +87,14 @@ class Saffron(Integration):
 
         return recipe.name+'.txt', data
 
-    def get_files_from_recipes(self, recipes, cookie):
+    def get_files_from_recipes(self, recipes, el, cookie):
         files = []
         for r in recipes:
             filename, data = self.get_file_from_recipe(r)
             files.append([ filename, data ])
 
+            el.exported_recipes += 1
+            el.msg += self.get_recipe_processed_msg(r)
+            el.save()
+            
         return files

cookbook/migrations/0164_exportlog.py

@@ -0,0 +1,32 @@
+# Generated by Django 3.2.11 on 2022-01-07 20:29
+
+import cookbook.models
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('cookbook', '0163_auto_20220105_0758'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='ExportLog',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('type', models.CharField(max_length=32)),
+                ('running', models.BooleanField(default=True)),
+                ('msg', models.TextField(default='')),
+                ('total_recipes', models.IntegerField(default=0)),
+                ('exported_recipes', models.IntegerField(default=0)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('created_by', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+                ('space', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='cookbook.space')),
+            ],
+            bases=(models.Model, cookbook.models.PermissionModelMixin),
+        ),
+    ]

cookbook/migrations/0165_exportlog_cache_duration.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.11 on 2022-01-08 00:10
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0164_exportlog'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='exportlog',
+            name='cache_duration',
+            field=models.IntegerField(default=0),
+        ),
+    ]

cookbook/migrations/0166_exportlog_possibly_not_expired.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.11 on 2022-01-08 00:43
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0165_exportlog_cache_duration'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='exportlog',
+            name='possibly_not_expired',
+            field=models.BooleanField(default=True),
+        ),
+    ]

cookbook/models.py

@@ -1002,6 +1002,25 @@ class ImportLog(models.Model, PermissionModelMixin):
     def __str__(self):
         return f"{self.created_at}:{self.type}"
 
+class ExportLog(models.Model, PermissionModelMixin):
+    type = models.CharField(max_length=32)
+    running = models.BooleanField(default=True)
+    msg = models.TextField(default="")
+
+    total_recipes = models.IntegerField(default=0)
+    exported_recipes = models.IntegerField(default=0)
+    cache_duration = models.IntegerField(default=0)
+    possibly_not_expired = models.BooleanField(default=True)
+
+    created_at = models.DateTimeField(auto_now_add=True)
+    created_by = models.ForeignKey(User, on_delete=models.CASCADE)
+
+    objects = ScopedManager(space='space')
+    space = models.ForeignKey(Space, on_delete=models.CASCADE)
+
+    def __str__(self):
+        return f"{self.created_at}:{self.type}"
+
 
 class BookmarkletImport(ExportModelOperationsMixin('bookmarklet_import'), models.Model, PermissionModelMixin):
     html = models.TextField()

cookbook/serializer.py

@@ -15,7 +15,7 @@ from rest_framework.fields import empty
 from cookbook.helper.HelperFunctions import str2bool
 from cookbook.helper.shopping_helper import RecipeShoppingEditor
 from cookbook.models import (Automation, BookmarkletImport, Comment, CookLog, Food,
-                             FoodInheritField, ImportLog, Ingredient, Keyword, MealPlan, MealType,
+                             FoodInheritField, ImportLog, ExportLog, Ingredient, Keyword, MealPlan, MealType,
                              NutritionInformation, Recipe, RecipeBook, RecipeBookEntry,
                              RecipeImport, ShareLink, ShoppingList, ShoppingListEntry,
                              ShoppingListRecipe, Step, Storage, Supermarket, SupermarketCategory,
@@ -850,6 +850,20 @@ class ImportLogSerializer(serializers.ModelSerializer):
         read_only_fields = ('created_by',)
 
 
+class ExportLogSerializer(serializers.ModelSerializer):
+
+    def create(self, validated_data):
+        validated_data['created_by'] = self.context['request'].user
+        validated_data['space'] = self.context['request'].space
+        return super().create(validated_data)
+
+    class Meta:
+        model = ExportLog
+        fields = ('id', 'type', 'msg', 'running', 'total_recipes', 'exported_recipes', 'cache_duration', 'possibly_not_expired', 'created_by', 'created_at')
+        read_only_fields = ('created_by',)
+
+
+
 class AutomationSerializer(serializers.ModelSerializer):
 
     def create(self, validated_data):

cookbook/static/css/app.min.css

@@ -1140,3 +1140,10 @@
         min-width: 28rem;
     }
 }
+
+@media print{
+    #switcher{
+        display: none;
+    }
+
+}

cookbook/templates/export.html

@@ -1,25 +1,33 @@
 {% extends "base.html" %}
-{% load crispy_forms_filters %}
-{% load i18n %}
+{% load render_bundle from webpack_loader %}
 {% load static %}
+{% load i18n %}
+{% load l10n %}
+
 
 {% block title %}{% trans 'Export Recipes' %}{% endblock %}
 
-{% block extra_head %}
-    {{ form.media }}
+
+{% block content %}
+    <div id="app">
+        <export-view></export-view>
+    </div>
+{% endblock %}
+
+
+{% block script %}
+    {% if debug %}
+        <script src="{% url 'js_reverse' %}"></script>
+    {% else %}
+        <script src="{% static 'django_js_reverse/reverse.js' %}"></script>
+    {% endif %}
+
+    <script type="application/javascript">
+        window.EXPORT_ID = {{pk}};
+        window.CUSTOM_LOCALE = '{{ request.LANGUAGE_CODE }}';
+    </script>
+
+    {% render_bundle 'export_view' %}
 {% endblock %}
 
 
-{% block content %}
-    <h2>{% trans 'Export' %}</h2>
-    <div class="row">
-        <div class="col col-md-12">
-            <form action="." method="post">
-                {% csrf_token %}
-                {{ form|crispy }}
-                <button class="btn btn-success" type="submit"><i class="fas fa-file-export"></i> {% trans 'Export' %}
-                </button>
-            </form>
-        </div>
-    </div>
-{% endblock %}

cookbook/templates/export_response.html

@@ -0,0 +1,32 @@
+{% extends "base.html" %}
+{% load render_bundle from webpack_loader %}
+{% load static %}
+{% load i18n %}
+{% load l10n %}
+
+{% block title %}{% trans 'Export' %}{% endblock %}
+
+{% block content %}
+
+    <div id="app">
+        <export-response-view></export-response-view>
+    </div>
+
+
+{% endblock %}
+
+
+{% block script %}
+    {% if debug %}
+        <script src="{% url 'js_reverse' %}"></script>
+    {% else %}
+        <script src="{% static 'django_js_reverse/reverse.js' %}"></script>
+    {% endif %}
+
+    <script type="application/javascript">
+        window.EXPORT_ID = {{pk}};
+        window.CUSTOM_LOCALE = '{{ request.LANGUAGE_CODE }}'
+    </script>
+
+    {% render_bundle 'export_response_view' %}
+{% endblock %}

cookbook/urls.py

@@ -21,6 +21,7 @@ router.register(r'cook-log', api.CookLogViewSet)
 router.register(r'food', api.FoodViewSet)
 router.register(r'food-inherit-field', api.FoodInheritFieldViewSet)
 router.register(r'import-log', api.ImportLogViewSet)
+router.register(r'export-log', api.ExportLogViewSet)
 router.register(r'ingredient', api.IngredientViewSet)
 router.register(r'keyword', api.KeywordViewSet)
 router.register(r'meal-plan', api.MealPlanViewSet)
@@ -72,8 +73,10 @@ urlpatterns = [
     path('abuse/<slug:token>', views.report_share_abuse, name='view_report_share_abuse'),
 
     path('import/', import_export.import_recipe, name='view_import'),
-    path('import-response/<int:pk>/', import_export.import_response, name='view_import_response'),
+    path('import-response/<int:pk>/', import_export.import_response, name='view_import_response'),\
     path('export/', import_export.export_recipe, name='view_export'),
+    path('export-response/<int:pk>/', import_export.export_response, name='view_export_response'),
+    path('export-file/<int:pk>/', import_export.export_file, name='view_export_file'),
 
     path('view/recipe/<int:pk>', views.recipe_view, name='view_recipe'),
     path('view/recipe/<int:pk>/<slug:share>', views.recipe_view, name='view_recipe'),

cookbook/views/api.py

@@ -43,7 +43,7 @@ from cookbook.helper.recipe_search import RecipeFacet, RecipeSearch, old_search
 from cookbook.helper.recipe_url_import import get_from_scraper
 from cookbook.helper.shopping_helper import RecipeShoppingEditor, shopping_helper
 from cookbook.models import (Automation, BookmarkletImport, CookLog, Food, FoodInheritField,
-                             ImportLog, Ingredient, Keyword, MealPlan, MealType, Recipe, RecipeBook,
+                             ImportLog, ExportLog, Ingredient, Keyword, MealPlan, MealType, Recipe, RecipeBook,
                              RecipeBookEntry, ShareLink, ShoppingList, ShoppingListEntry,
                              ShoppingListRecipe, Step, Storage, Supermarket, SupermarketCategory,
                              SupermarketCategoryRelation, Sync, SyncLog, Unit, UserFile,
@@ -54,7 +54,7 @@ from cookbook.provider.nextcloud import Nextcloud
 from cookbook.schemas import FilterSchema, QueryParam, QueryParamAutoSchema, TreeSchema
 from cookbook.serializer import (AutomationSerializer, BookmarkletImportSerializer,
                                  CookLogSerializer, FoodInheritFieldSerializer, FoodSerializer,
-                                 FoodShoppingUpdateSerializer, ImportLogSerializer,
+                                 FoodShoppingUpdateSerializer, ImportLogSerializer, ExportLogSerializer,
                                  IngredientSerializer, KeywordSerializer, MealPlanSerializer,
                                  MealTypeSerializer, RecipeBookEntrySerializer,
                                  RecipeBookSerializer, RecipeImageSerializer,
@@ -861,6 +861,17 @@ class ImportLogViewSet(viewsets.ModelViewSet):
         return self.queryset.filter(space=self.request.space)
 
 
+class ExportLogViewSet(viewsets.ModelViewSet):
+    queryset = ExportLog.objects
+    serializer_class = ExportLogSerializer
+    permission_classes = [CustomIsUser]
+    pagination_class = DefaultPagination
+
+    def get_queryset(self):
+        return self.queryset.filter(space=self.request.space)
+
+
+
 class BookmarkletImportViewSet(viewsets.ModelViewSet):
     queryset = BookmarkletImport.objects
     serializer_class = BookmarkletImportSerializer

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
 
 
@@ -123,25 +124,55 @@ 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)
+        pk = ''
         recipe = request.GET.get('r')
         if recipe:
             if re.match(r'^([0-9])+$', recipe):
-                if recipe := Recipe.objects.filter(pk=int(recipe), space=request.space).first():
-                    form = ExportForm(initial={'recipes': recipe}, space=request.space)
+                pk = Recipe.objects.filter(pk=int(recipe), space=request.space).first().pk
 
-    return render(request, 'export.html', {'form': form})
+    return render(request, 'export.html', {'pk': pk})
 
 
 @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
+