Merge pull request #29770 from y-yagi/fix_boolean_column_migration_script

Fix boolean column migration script

activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb

@@ -82,7 +82,7 @@ class SQLite3Adapter < AbstractAdapter
       # Conversion can be accomplished by setting up a rake task which runs
       #
       #   ExampleModel.where("boolean_column = 't'").update_all(boolean_column: 1)
-      #   ExampleModel.where("boolean_column = 't'").update_all(boolean_column: 0)
+      #   ExampleModel.where("boolean_column = 'f'").update_all(boolean_column: 0)
       # for all models and all boolean columns, after which the flag must be set
       # to true by adding the following to your application.rb file:
       #

activerecord/lib/active_record/railtie.rb

@@ -187,7 +187,7 @@ class Railtie < Rails::Railtie # :nodoc:
 by setting up a rake task which runs
 
   ExampleModel.where("boolean_column = 't'").update_all(boolean_column: 1)
-  ExampleModel.where("boolean_column = 't'").update_all(boolean_column: 0)
+  ExampleModel.where("boolean_column = 'f'").update_all(boolean_column: 0)
 
 for all models and all boolean columns, after which the flag must be set to
 true by adding the following to your application.rb file:

guides/source/configuring.md

@@ -387,7 +387,7 @@ by setting up a rake task which runs
 
     ```ruby
     ExampleModel.where("boolean_column = 't'").update_all(boolean_column: 1)
-    ExampleModel.where("boolean_column = 't'").update_all(boolean_column: 0)
+    ExampleModel.where("boolean_column = 'f'").update_all(boolean_column: 0)
     ```
 
   for all models and all boolean columns, after which the flag must be set to true