I'm creating a custom administration action to download a list of orders as a CSV file. I've this in my orders/admin.py:
def export_to_csv(modeladmin, request, queryset):
opts = modeladmin.model._meta # opts = options
for order in queryset:
content_disposition = f'attachment; filename=OrderID-{order.id}.csv'
response = HttpResponse(content_type='text/csv')
response['Content-Disposition'] = content_disposition
writer = csv.writer(response)
fields = [field for field in opts.get_fields() if not field.many_to_many
and not field.one_to_many]
writer.writerow([field.verbose_name for field in fields])
# Write data rows
for obj in queryset:
data_row = []
for field in fields:
value = getattr(obj, field.name)
if isinstance(value, datetime.datetime):
value = value.strftime('%d/%m/%Y')
data_row.append(value)
writer.writerow(data_row)
return response
However, this code doesn't download more than one csv file Even when I've selected more than one.
