1 files changed, 14 insertions, 1 deletions
diff --git a/app/books/models.py b/app/books/models.py
index 8e381ef..5df74f1 100644
--- a/app/books/models.py
+++ b/app/books/models.py
@@ -2,6 +2,7 @@ import os
 from PIL import Image
 from django.db import models
 from django.db.models.signals import post_save
+from django.contrib.sitemaps import Sitemap
 from django.dispatch import receiver
 from django.urls import reverse
 from django.apps import apps
@@ -23,7 +24,7 @@ class Book(models.Model):
     slug = models.CharField(max_length=50)
     read_date = models.DateTimeField()
     isbn = models.CharField(max_length=100, blank=True, null=True)
-    body_markdown = models.TextField(null=True, blank=True)
+    body_markdown = models.TextField(blank=True)
     body_html = models.TextField(null=True, blank=True)
     read_in = models.TextField(null=True, blank=True)
     url = models.CharField(max_length=200, blank=True, null=True)
@@ -114,3 +115,15 @@ class BookHighlight(models.Model):
 
     def body_html(self):
         return markdown_to_html(self.body_markdown)
+
+
+class BookSitemap(Sitemap):
+    changefreq = "never"
+    priority = 0.7
+    protocol = "https"
+
+    def items(self):
+        return Book.objects.filter(is_public=True).exclude(body_markdown='')
+
+    def lastmod(self, obj):
+        return obj.read_date