From 286c075ea82c027676e8047fce4863c75b303511 Mon Sep 17 00:00:00 2001
From: Olivier DOSSMANN <git@dossmann.net>
Date: Sun, 4 Feb 2018 21:34:05 +0100
Subject: [PATCH] =?UTF-8?q?Am=C3=A9lioration=20du=20nom=20affich=C3=A9=20p?=
 =?UTF-8?q?our=20le=20filtre=20sur=20les=20Chronologies?=
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---
 collection/games/admin.py | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/collection/games/admin.py b/collection/games/admin.py
index 9a588a7..0811c3b 100644
--- a/collection/games/admin.py
+++ b/collection/games/admin.py
@@ -80,10 +80,33 @@ class GameAdmin(admin.ModelAdmin):
     get_platform.admin_order_field = 'collection__shortname'
 
 
+class TimelinePlatformFilter(admin.SimpleListFilter):
+    """
+    Display Platform shortname.
+    """
+    title = _('platform')
+    parameter_name = 'collection'
+
+    def lookups(self, request, model_admin):
+        """
+        Get all platforms
+        """
+        return [(x.id, x.shortname) for x in Platform.objects.all()]
+
+    def queryset(self, request, queryset):
+        """
+        Filter on 'shortname' field.
+        """
+        if self.value():
+            return queryset.filter(item__collection__id=self.value())
+        else:
+            return queryset
+
+
 class TimelineAdmin(admin.ModelAdmin):
     list_display = ('date', 'status', 'item', 'get_platform')
     search_fields = ('item__name', )
-    list_filter = ('item__collection__shortname', )
+    list_filter = (TimelinePlatformFilter, )
 
     def get_platform(self, obj):
         """