BaseRevisionMixin.previous_revision: Allow deletion of Revisions by setting…

BaseRevisionMixin.previous_revision: Allow deletion of Revisions by setting back-referenced revisions to NULL such that future revisions are not cascade deleted.

BaseRevisionMixin.previous_revision: Allow deletion of Revisions by setting…
BaseRevisionMixin.previous_revision: Allow deletion of Revisions by setting back-referenced revisions to NULL such that future revisions are not cascade deleted.
5d4c5453 · benjaoming · e506c094 · 5d4c5453 · 5d4c5453
Commit 5d4c5453 authored May 18, 2013 by benjaoming
Expand all Hide whitespace changes
Inline Side-by-side

Showing with 3 additions and 1 deletions

wiki/migrations/0013_auto__chg_field_attachmentrevision_previous_revision__chg_field_revisi.py
+0 -0

wiki/models/article.py
+3 -1

No files found.
--- a/wiki/migrations/0013_auto__chg_field_attachmentrevision_previous_revision__chg_field_revisi.py
+++ b/wiki/migrations/0013_auto__chg_field_attachmentrevision_previous_revision__chg_field_revisi.py
--- a/wiki/models/article.py
+++ b/wiki/models/article.py
@@ -211,7 +211,9 @@ class BaseRevisionMixin(models.Model):
    modified = models.DateTimeField(auto_now=True)
    created = models.DateTimeField(auto_now_add=True)
    
-    previous_revision = models.ForeignKey('self', blank=True, null=True)
+    previous_revision = models.ForeignKey(
+        'self', blank=True, null=True, on_delete=models.SET_NULL
+    )
    
    # NOTE! The semantics of these fields are not related to the revision itself
    # but the actual related object. If the latest revision says "deleted=True" then