Changes between Version 66 and Version 67 of BackwardsIncompatibleChanges

Timestamp:

Aug 11, 2006, 12:25:29 AM (18 years ago)

Author:

Adrian Holovaty

Comment:

Added "Backslash escaping changed"

BackwardsIncompatibleChanges

@@ -37 +37 @@
 Changes made after Django [source:/django/tags/releases/0.95 0.95]
  * August 2, 2006: [http://code.djangoproject.com/wiki/BackwardsIncompatibleChanges#Databaseconstraintnameschanged Database constraint names changed]
+ * August 11, 2006: [http://code.djangoproject.com/wiki/BackwardsIncompatibleChanges#Backslashescapingchanged Backslash escaping changed]
 
 == Moved mod_python handler ==
@@ -570 +571 @@
 == Removed the magic ==
 
-As of [2809], the [wiki:RemovingTheMagic magic-removal branch] has been merged. There's a LONG LIST of backwards-incompatible changes, and they're all documented on the RemovingTheMagic wiki page.
+As of [2809], the [wiki:RemovingTheMagic magic-removal branch] has been merged. There's a LONG list of backwards-incompatible changes, and they're all documented on the RemovingTheMagic wiki page.
 
 == Database constraint names changed ==
@@ -577 +578 @@
 
 The effect of this change is that {{{manage.py reset app_name}}} and similar commands may generate SQL with invalid constraint names and thus generate an error when run against the database (the database server will complain about the constraint not existing). To fix this, you will need to tweak the output of {{{manage.py sqlreset app_name}}} to match the correct constraint names and pass the results to the database server manually.
+
+== Backslash escaping changed ==
+
+As of [3552], the Django database API now escapes backslashes given as query parameters. If you have any database API code that match backslashes, and it was working before (despite the broken escaping), you'll have to change your code to "unescape" the slashes one level.
+
+For example, this used to work:
+
+{{{
+#!python
+# Code that matches a single backslash
+MyModel.objects.filter(text__contains='\\\\')
+}}}
+
+But it should be rewritten as this:
+
+{{{
+#!python
+# Code that matches a single backslash
+MyModel.objects.filter(text__contains='\\')
+}}}