added import and export data from admin dashboard

bigday/admin.py

@@ -1,12 +1,34 @@
 from django.contrib import admin
 
+from import_export import resources
+from import_export.admin import ImportExportModelAdmin
+
 from .models import InvitedGuest
 
-class InvitedGuestAdmin(admin.ModelAdmin):
+class ExportInvitedGuestResource(resources.ModelResource):
+    class Meta:
+        model = InvitedGuest
+        fields = ('name', 'attending')
+        export_order = ('name', 'attending')
+        exclude = 'rsvpCode'
+
+class ImportInvitedGuestResource(resources.ModelResource):
+    class Meta:
+        model = InvitedGuest
+        fields = ('name', 'rsvpCode')
+        skip_unchanged = True
+        report_skipped = False
+        import_id_fields = ['name']
+
+
+class InvitedGuestAdmin(ImportExportModelAdmin):
+    resource_class = ImportInvitedGuestResource
     fields = ['name', 'rsvpCode', 'attending']
     list_display = ('name', 'rsvpCode', 'attending')
     search_fields = ['name']
     list_filter = ['attending']
+    def get_export_resource_class(self):
+        return ExportInvitedGuestResource
 
 
 admin.site.register(InvitedGuest, InvitedGuestAdmin)

djangoWedding/settings.py

@@ -27,7 +27,6 @@ DEBUG = True
 
 ALLOWED_HOSTS = []
 
-
 # Application definition
 
 INSTALLED_APPS = [
@@ -37,6 +36,7 @@ INSTALLED_APPS = [
     'django.contrib.sessions',
     'django.contrib.messages',
     'django.contrib.staticfiles',
+    'import_export',
     'bigday'
 ]
 
@@ -118,4 +118,4 @@ USE_TZ = True
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/2.2/howto/static-files/
 
-STATIC_URL = '/static/'
+STATIC_URL = '/static/'