Check for duplicate emails

ssmembership/views.py

@@ -136,6 +136,9 @@ def import_save(request):
 	
 	errors = member.validation_problems()
 	
+	if models.Member.objects.filter(email=request.POST['email']).count() > 0:
+		errors.append('Member with this email already exists')
+	
 	if len(errors) > 0:
 		return render(request, 'ssmembership/import/review.html', {
 			'member': member,