First bookshelf implementation

ram/bookshelf/admin.py

@@ -0,0 +1,43 @@
+from django.contrib import admin
+
+from bookshelf.models import BookProperty, Book, Author, Publisher
+
+
+class BookPropertyInline(admin.TabularInline):
+    model = BookProperty
+    min_num = 0
+    extra = 0
+
+
+@admin.register(Book)
+class BookAdmin(admin.ModelAdmin):
+    inlines = (BookPropertyInline,)
+    list_display = (
+        "title",
+        "get_authors",
+        "get_publisher",
+        "publication_year",
+        "numbers_of_pages"
+    )
+    search_fields = ("title",)
+    list_filter = ("publisher__name",)
+
+    @admin.display(description="Publisher")
+    def get_publisher(self, obj):
+        return obj.publisher.name
+
+    @admin.display(description="Authors")
+    def get_authors(self, obj):
+        return ", ".join(a.short_name() for a in obj.authors.all())
+
+
+@admin.register(Author)
+class AuthorAdmin(admin.ModelAdmin):
+    search_fields = ("first_name", "last_name",)
+    list_filter = ("last_name",)
+
+
+@admin.register(Publisher)
+class PublisherAdmin(admin.ModelAdmin):
+    list_display = ("name", "country")
+    search_fields = ("name",)