add mark as (non-)obsolete

sample/admin.py

@@ -2,11 +2,33 @@
 from django_admin_listfilter_dropdown.filters import RelatedDropdownFilter
 
 from .models import NucleicAcidType, Sample
+from django.conf import settings
+
+
+
+def mark_as_obsolete(modeladmin,request,queryset):
+    queryset.update(status=settings.OBSOLETE)
+
+mark_as_obsolete.short_description = "Mark nucleid acid type as obsolete"
+
+def mark_as_non_obsolete(modeladmin,request,queryset):
+    queryset.update(status=settings.NON_OBSOLETE)
+
+mark_as_non_obsolete.short_description = "Mark nucleid acid type as non-obsolete"
 
 
 @admin.register(NucleicAcidType)
 class NucleicAcidTypeAdmin(admin.ModelAdmin):
+    list_display = ('name','status_name',)
     list_filter = ('type',)
+    actions = (mark_as_obsolete,mark_as_non_obsolete)
+
+    def status_name(self,obj):
+
+        return "Non-obsolete" if obj.status==settings.NON_OBSOLETE else "Obsolete"
+    status_name.short_description = "STATUS"
+
+
 
 
 @admin.register(Sample)