[perf-web] views.py: Remove duplicated code and thus add select_related

[Owen Taylor <otaylor src gnome org>]

commit 224d675a11ffbd8a68b89f8d941c23ff5d142fc8
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Tue Jul 29 22:38:25 2014 +0200

    views.py: Remove duplicated code and thus add select_related
    
    Replace code duplicated with models.py and call the models.py method
    instead; this results in using the select_related() added in the
    last commit for individual values as well.

 metrics/views.py |   11 +----------
 1 files changed, 1 insertions(+), 10 deletions(-)
---
diff --git a/metrics/views.py b/metrics/views.py
index c211457..afd3e3d 100644
--- a/metrics/views.py
+++ b/metrics/views.py
@@ -153,16 +153,7 @@ def values(request):
     summaryCls = _SUMMARY_CLASSES[group]
     if summaryCls is None:
         qs = Value.objects.all()
-        if start:
-            qs = qs.filter(report__pull_time__gte=start)
-        if end:
-            qs = qs.filter(report__pull_time__lt=end)
-        if target:
-            qs = qs.filter(report__target__name=target.name)
-        if metric:
-            qs = qs.filter(metric__name=metric.name)
-
-        qs = qs.order_by('metric', 'report__target', 'report__pull_time')
+        qs = Value.filter_and_order(qs, start, end, metric, target)
 
         last_metric = None
         last_target = None