The MySQL connection adapater swallows all StandardError exceptions,
which includes Mysql::Error and Mysql2::Error. The comment in the
exception clause claims errors thrown here indicate that transactions
aren't supported by the server but that isn't necessarily true. It's
possible the MySQL server has gone away and swallowing a failed commit
may let the application return a successful response when the data has
not been saved. Also, replication libraries like Galera require that the
application handle exceptions thrown at BEGIN/COMMIT.
I'm unable to determine what version of MySQL threw an exception for
transactional statements. I tried as far back as 3.23.49 with InnoDB
disabled but BEGIN & COMMIT statements do not throw an error. If there's
a real case for this logic to continue, we could instead push this
behavior into a configuration setting.
The exception swallowing has been there since the beginning:
db045dbbf60b53dbe013ef25554fd013baf88134
was using nullify strategy
This caused a regression in applications trying to upgrade.
Also if the user set the dependent option as destroy he expects to get
the records removed from the database.
consolidated test_schema_migrations_table_name tests
Added changelog entry
edited changelog
removed commented lines
removed reader
ensure the schema migrations table is reset at end of test
added entry to configuration guide
guides typo and changelog order
This is necessary because as of 5ac2341 `hstore` columns are always stored
as `Hash` with `String` keys. `ActiveRecord::Store` expected the attribute to
be an instance of `HashWithIndifferentAccess`, which led to the bug.
Currently they are all stored globally in the same `Hash`.
This commit forces the creation of a per-class variable if necessary.
The behavior was exposed through the following test-case:
```
1) Failure:
StoreTest#test_all_stored_attributes_are_returned [/Users/senny/Projects/rails/activerecord/test/cases/store_test.rb:151]:
--- expected
+++ actual
@@ -1 +1 @@
-[:color, :homepage, :favorite_food]
+[:resolution, :color, :homepage, :favorite_food]
```
* master: (23 commits)
Escape the parentheses in the default function regexp
Update docs on Tilt::Template in Asset Pipeline guide
Fix loading a sql structure file on postgres when the file's path has whitespace in it
remove trailing whitespace added with b057765 [ci skip].
Allow unscope to work with `where.not`
Raise an exception when model without primary key calls .find_with_ids
Process sub-query relation's binding values
Instrument the generation of Action Mailer messages
Remove extra variable creation and merge.
In Relation#empty? use #exists? instead of #count.
[ci skip] avoid deprecation warning in sample code
Convert Fixnum into String the port number in MySQL
Fix some indentation on autosave association
Make define_non_cyclic_method simpler
Add Sass gobbling info to asset pipeline docs
Ensure the state is clean after one failure
Fix typo in form_helper.rb
add a new local variable to track if digests are being stored, to ensure the cleanup works correctly
[ci skip] Fix number of methods added by association.
update digestor code based on review
...
