Add RelatedLinks inline to Manifest admin

apps/iiif/manifests/admin.py

@@ -6,7 +6,7 @@
 from import_export.admin import ImportExportModelAdmin
 from import_export.widgets import ManyToManyWidget, ForeignKeyWidget
 from django_summernote.admin import SummernoteModelAdmin
-from .models import Manifest, Note, ImageServer
+from .models import Manifest, Note, ImageServer, RelatedLink
 from .forms import ManifestAdminForm
 from .views import AddToCollectionsView
 from ..kollections.models import Collection
@@ -32,6 +32,17 @@ class Meta: # pylint: disable=too-few-public-methods, missing-class-docstring
             'pdf', 'metadata', 'attribution', 'logo', 'logo_url', 'license', 'viewingdirection', 'collection_id'
         )
 
+
+class RelatedLinksInline(admin.TabularInline):
+    model = RelatedLink
+    fields = (
+        "link",
+        "data_type",
+        "format",
+    )
+    extra = 1
+    min_num = 0
+
 class ManifestAdmin(ImportExportModelAdmin, SummernoteModelAdmin, admin.ModelAdmin):
     """Django admin configuration for manifests"""
     resource_class = ManifestResource
@@ -42,6 +53,7 @@ class ManifestAdmin(ImportExportModelAdmin, SummernoteModelAdmin, admin.ModelAdm
     summernote_fields = ('summary',)
     form = ManifestAdminForm
     actions = ['add_to_collections_action']
+    inlines = [RelatedLinksInline]
 
     def add_to_collections_action(self, request, queryset):
         """Action choose manifests to add to collections"""