From fce0c3b04536e3ac11786d91eebb86d22596c08e Mon Sep 17 00:00:00 2001
From: Samuel Gaist <samuel.gaist@idiap.ch>
Date: Mon, 20 Apr 2020 11:41:13 +0200
Subject: [PATCH] [common][utils] Move annotation method here
---
beat/web/common/utils.py | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/beat/web/common/utils.py b/beat/web/common/utils.py
index ffe47af7a..127378d8e 100644
--- a/beat/web/common/utils.py
+++ b/beat/web/common/utils.py
@@ -31,6 +31,8 @@ Reusable help functions
from django.core.exceptions import ValidationError
from django.utils.encoding import force_text
from django.utils import six
+from django.db.models import CharField, Value as V
+from django.db.models.functions import Concat
from docutils import utils
from docutils.nodes import Element
@@ -145,3 +147,21 @@ def py3_cmp(a, b):
https://docs.python.org/3.0/whatsnew/3.0.html#ordering-comparisons
"""
return (a > b) - (a < b)
+
+
+def annotate_full_name(db_class):
+ """
+ Annotate a query with the asset full name so that it can be more easily
+ filtered.
+ """
+
+ return db_class.objects.annotate(
+ full_name=Concat(
+ "author__username",
+ V("/"),
+ "name",
+ V("/"),
+ "version",
+ output_field=CharField(),
+ )
+ )
--
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