Tweak slides

slides.md

@@ -38,34 +38,30 @@ layout: cover
 # Site history report
 
 ---
-layout: cover
+layout: section
 ---
 
 # Restoring from backups
 
 ---
-layout: cover
+layout: section
 ---
 
 # _Partial_ restores from backups
 
 ---
-layout: center
+layout: section
 ---
 
-# 1. Spin up a database backup
+## 1.
+# Spin up a database backup
 
 ---
-layout: center
+layout: section
 ---
 
-<style>
+## 2.
-  pre.shiki {
+# Locate the page models
-    font-size: 1.4rem;
-  }
-</style>
-
-# 2. Locate the page models
 
 <div class="pt-5">
 
@@ -79,17 +75,19 @@ child_pages = sysadmin_page.get_descendants()
 
 </div>
 
----
-layout: center
----
-
 <style>
   pre.shiki {
-    font-size: 1.4rem;
+    font-size: 1.4rem !important;
+    text-align: left;
   }
 </style>
 
-# 3. Locate what was deleted
+---
+layout: section
+---
+
+## 3.
+# Locate what was deleted
 
 <div class="pt-5">
 
@@ -102,16 +100,18 @@ collector.collect(list(child_pages) + [sysadmin_page])
 
 </div>
 
----
-layout: center
----
-
 <style>
   pre.shiki {
-    font-size: 1.4rem;
+    font-size: 1.4rem !important;
+    text-align: left;
   }
 </style>
 
+
+---
+layout: section
+---
+
 # 4. Serialize
 
 <div class="pt-5">
@@ -136,26 +136,80 @@ with open("deleted-models.json", "w") as f:
 
 </div>
 
+<style>
+  pre.shiki {
+    font-size: 1rem !important;
+    text-align: left;
+  }
+</style>
+
+
 ---
-layout: center
+layout: section
 ---
 
-# 4a. Deserialize
+## 4a.
+# Deserialize
 
 ---
 layout: center
 ---
 
-# 5. Test test test
+# `restore-deleted-pages.py`
+
+```python {all}{lines:true}
+from django.contrib.admin.utils import NestedObjects
+from django.core import serializers
+
+from wagtail.models import Page
+
+class NoM2MSerializer(Serializer):
+    def handle_m2m_field(self, obj, field):
+        pass
+
+sysadmin_page = Page.objects.get(id=91)
+
+child_pages = sysadmin_page.get_descendants()
+
+collector = NestedObjects()
+collector.collect(list(child_pages) + [sysadmin_page])
+
+def get_model_instances():
+    for qs in collector.data.values():
+        yield from qs
+
+with open("deleted-models.json", "w") as f:
+    NoM2MSerializer().serialize(
+        get_model_instances(),
+        stream=f
+    )
+```
 
 ---
-layout: center
+layout: section
 ---
 
-# 6. Showtime!
+#### 5.
+### Test
+## Test
+# **Test!**
+
+---
+layout: image-right
+image: /red-button.png
+class: flex justify-center flex-col items-center
+---
+
+### 6.
+# Showtime!
+
+---
+layout: cover
+background: https://cdn.jsdelivr.net/gh/wagtail/wagtail@main/.github/wagtail-screenshot-with-browser.png
+---
+
+# Conclusion
 
 ---
 layout: end
 ---
-
-# Conclusion