Mention in admin list that a contribution is expired

(quick'n'dirty)

wifiwithme/apps/contribmap/admin.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 from django.contrib import admin
+from django.utils.html import format_html
 
 # Register your models here.
 from .models import Contrib
@@ -14,7 +15,7 @@ admin.site.site_title = "Wifi with me"
 @admin.register(Contrib)
 class ContribAdmin(admin.ModelAdmin):
     search_fields = ["name", "email", "phone"]
-    list_display = ("name", "date", "phone", "email")
+    list_display = ("name", "date", "phone", "email", "expired_string")
 
     readonly_fields = ['date', 'expiration_date']
     fieldsets = [
@@ -43,3 +44,11 @@ class ContribAdmin(admin.ModelAdmin):
             'classes': ['collapse'],
         }]
     ]
+
+    def expired_string(self, obj):
+        if obj.is_expired():
+            return format_html('<strong style="color: red; cursor: help;" title="Cette entrée excède la durée de rétention et aurait dû être supprimée automatiquement.">expiré</strong>')
+        else:
+            return 'non expiré'
+
+    expired_string.short_description = 'Expiration'

wifiwithme/apps/contribmap/models.py

@@ -175,6 +175,9 @@ class Contrib(models.Model):
     def is_public(self):
         return self.privacy_coordinates
 
+    def is_expired(self):
+        return self.expiration_date <= timezone.now()
+
     def _may_be_public(self, field):
         return field in self.PUBLIC_FIELDS