from django.contrib import admin
from dariah_contributions.models import Contribution, DcCreator, DcContributor


class ContributionAdmin(admin.ModelAdmin):
    list_filter = ['published_on', ]
    readonly_fields = ['author', 'last_modified_on', 'dc_identifier']
    filter_horizontal = ['dc_creator', 'dc_contributor']

admin.site.register(DcCreator)
admin.site.register(DcContributor)
admin.site.register(Contribution, ContributionAdmin)

@@ -150,16 +150,95 @@
 Admin):%0A
+    list_display = %5B'dc_identifier', 'dc_title', 'is_published', 'is_deleted'%5D%0A
     list
@@ -334,16 +334,30 @@
 ntifier'
+, 'is_deleted'
 %5D%0A    fi

Add more fields to the admin.