Added arbitrary files and links to boxes

boxes/admin.py

@@ -1,7 +1,7 @@
 from django.contrib import admin
 from django_mptt_admin.admin import DjangoMpttAdmin
 
-from .models import Box, BoxType, Thing, ThingType
+from .models import Box, BoxType, Thing, ThingFile, ThingLink, ThingType
 
 
 @admin.register(BoxType)
@@ -35,3 +35,32 @@ class ThingAdmin(admin.ModelAdmin):
     list_display = ('name', 'thing_type', 'box')
     list_filter = ('thing_type', 'box')
     search_fields = ('name', 'description')
+
+
+class ThingFileInline(admin.TabularInline):
+    """Inline admin for Thing files."""
+
+    model = ThingFile
+    extra = 1
+    fields = ('title', 'file')
+
+
+class ThingLinkInline(admin.TabularInline):
+    """Inline admin for Thing links."""
+
+    model = ThingLink
+    extra = 1
+    fields = ('title', 'url')
+
+
+class ThingAdminWithFiles(admin.ModelAdmin):
+    """Admin configuration for Thing model with files and links."""
+
+    list_display = ('name', 'thing_type', 'box')
+    list_filter = ('thing_type', 'box')
+    search_fields = ('name', 'description')
+    inlines = [ThingFileInline, ThingLinkInline]
+
+
+admin.site.unregister(Thing)
+admin.register(Thing, ThingAdminWithFiles)