| Commit message (Collapse) | Author | Age | Files | Lines |
... | |
| | | | |
|
|\ \ \ \
| | | | |
| | | | | |
Build a multi-statement query when inserting fixtures
|
| | | | |
| | | | |
| | | | |
| | | | |
| | | | | |
- mysql will add a 2 bytes margin to the statement, so given a `max_allowed_packet` set to 1024 bytes, a 1024 bytes fixtures will no be inserted (mysql will throw an error)
- Preventing this by decreasing the max_allowed_packet by 2 bytes when doing the comparison with the actual statement size
|
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | | |
- The `insert_fixtures` method can be optimized by making a single multi statement query for all fixtures having the same connection instead of doing a single query per table
- The previous code was bulk inserting fixtures for a single table, making X query for X fixture files
- This patch builds a single **multi statement query** for every tables. Given a set of 3 fixtures (authors, dogs, computers):
```ruby
# before
%w(authors dogs computers).each do |table|
sql = build_sql(table)
connection.query(sql)
end
# after
sql = build_sql(authors, dogs, computers)
connection.query(sql)
```
- `insert_fixtures` is now deprecated, `insert_fixtures_set` is the new way to go with performance improvement
- My tests were done with an app having more than 700 fixtures, the time it takes to insert all of them was around 15s. Using a single multi statement query, it took on average of 8 seconds
- In order for a multi statement to be executed, mysql needs to be connected with the `MULTI_STATEMENTS` [flag](https://dev.mysql.com/doc/refman/5.7/en/c-api-multiple-queries.html), which is done before inserting the fixtures by reconnecting to da the database with the flag declared. Reconnecting to the database creates some caveats:
1. We loose all open transactions; Inside the original code, when inserting fixtures, a transaction is open. Multple delete statements are [executed](https://github.com/rails/rails/blob/a681eaf22955734c142609961a6d71746cfa0583/activerecord/lib/active_record/fixtures.rb#L566) and finally the fixtures are inserted. The problem with this patch is that we need to open the transaction only after we reconnect to the DB otherwise reconnecting drops the open transaction which doesn't commit all delete statements and inserting fixtures doesn't work since we duplicated them (Primary key duplicate exception)...
- In order to fix this problem, the transaction is now open directly inside the `insert_fixtures` method, right after we reconnect to the db
- As an effect, since the transaction is open inside the `insert_fixtures` method, the DELETE statements need to be executed here since the transaction is open later
2. The same problem happens for the `disable_referential_integrity` since we reconnect, the `FOREIGN_KEY_CHECKS` is reset to the original value
- Same solution as 1. , the disable_referential_integrity can be called after we reconnect to the transaction
3. When the multi statement query is executed, no other queries can be performed until we paginate over the set of results, otherwise mysql throws a "Commands out of sync" [Ref](https://dev.mysql.com/doc/refman/5.7/en/commands-out-of-sync.html)
- Iterating over the set of results until `mysql_client.next_result` is false. [Ref](https://github.com/brianmario/mysql2#multiple-result-sets)
- Removed the `active_record.sql "Fixture delete"` notification, the delete statements are now inside the INSERT's one
- On mysql the `max_allowed_packet` is looked up:
1. Before executing the multi-statements query, we check the packet length of each statements, if the packet is bigger than the max_allowed_packet config, an `ActiveRecordError` is raised
2. Otherwise we concatenate the current sql statement into the previous and so on until the packet is `< max_allowed_packet`
|
|\ \ \ \ \
| | | | | |
| | | | | | |
Support for PostgreSQL foreign tables
|
| | | | | | |
|
|/ / / / /
| | | | |
| | | | |
| | | | | |
Fixes #31762.
|
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | |
| | | | | |
Fixes issue described in #30399: A default value on the
inheritance column prevented `child.becomes(Parent)` to return
an instance of `Parent` as expected, instead it returns an instance
of the default subclass.
The change was introduced by #17169 and it was meant to affect
initialization, alone. Where `Parent.new` is expected to return
an instance of the default subclass.
|
|\ \ \ \ \
| | | | | |
| | | | | | |
Don't update counter cache when through record was not destroyed
|
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
When removing a record from a has many through association, the counter
cache was being updated even if the through record halted the callback
chain and prevented itself from being destroyed.
|
|/ / / / /
| | | | |
| | | | |
| | | | |
| | | | |
| | | | | |
This test case which was added in #28287 checks that
`ActiveRecord::Schema.define` loads migration versions in
subdirectories. It should be kept it as it was.
|
|\ \ \ \ \
| | | | | |
| | | | | | |
Added a test around `NO_AUTO_VALUE_ON_ZERO`:
|
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
- The mysql `NO_AUTO_VALUE_ON_ZERO` mode should be disabled when inserting fixtures in bulk, this PR adds a test to make sure we don't remove it by mistake
- If we live this mode enabled, a statement like this wouldn't work and a `Duplicate entry '0' for key 'PRIMARY'` error will be raised. That's because `DEFAULT` on auto_increment will return 0
```sql
INSERT INTO `aircraft` (`id`, `name`, `wheels_count`) VALUES (DEFAULT, 'first', 2), (DEFAULT, 'second', 3)
```
|
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
Rails has some support for multiple databases but it can be hard to
handle migrations with those. The easiest way to implement multiple
databases is to contain migrations into their own folder ("db/migrate"
for the primary db and "db/seconddb_migrate" for the second db). Without
this you would need to write code that allowed you to switch connections
in migrations. I can tell you from experience that is not a fun way to
implement multiple databases.
This refactoring is a pre-requisite for implementing other features
related to parallel testing and improved handling for multiple
databases.
The refactoring here moves the class methods from the `Migrator` class
into it's own new class `MigrationContext`. The goal was to move the
`migrations_paths` method off of the `Migrator` class and onto the
connection. This allows users to do the following in their
`database.yml`:
```
development:
adapter: mysql2
username: root
password:
development_seconddb:
adapter: mysql2
username: root
password:
migrations_paths: "db/second_db_migrate"
```
Migrations for the `seconddb` can now be store in the
`db/second_db_migrate` directory. Migrations for the primary database
are stored in `db/migrate`".
The refactoring here drastically reduces the internal API for migrations
since we don't need to pass `migrations_paths` around to every single
method. Additionally this change does not require any Rails applications
to make changes unless they want to use the new public API. All of the
class methods from the `Migrator` class were `nodoc`'d except for the
`migrations_paths` and `migrations_path` getter/setters respectively.
|
| | | | | | |
|
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
Currently `object.save` will unfreeze the object, due to
`changes_applied` replaces frozen `@attributes` to new `@attributes`.
Since originally destroyed objects are not allowed to be mutated, `save`
and `save!` should not return success in that case.
Fixes #28563.
|
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | |
| | | | | | |
If `collation` is given without `charset`, it may generate invalid SQL.
For example `create_database(:matt_aimonetti, collation: "utf8mb4_bin")`:
```
> CREATE DATABASE `matt_aimonetti` DEFAULT CHARACTER SET `utf8` COLLATE `utf8mb4_bin`;
ERROR 1253 (42000): COLLATION 'utf8mb4_bin' is not valid for CHARACTER SET 'utf8'
```
In MySQL, charset is used to find the default collation. If `collation`
is given explicitly, it is not necessary to give extra charset.
|
|\ \ \ \ \ \
| | | | | | |
| | | | | | |
| | | | | | | |
Allow unscoping of left_outer_joins
|
|\ \ \ \ \ \ \
| | | | | | | |
| | | | | | | |
| | | | | | | | |
When deleting through records, take into account association conditions
|
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
Fixes #18424.
When deleting through records, it didn't take into account the
conditions that may have been affecting join model table, but was
defined in association definition.
|
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
`relation.exists?` just wants to know if there is a result or not, does
not need the exact records matched. Therefore, an intermediate SELECT
query for eager loading is not necessary.
|
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
Need reloading when through record has replaced.
|
|\ \ \ \ \ \ \ \
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
zoltankiss/allow-nested-has-many-associations-on-unpersisted-parent-instances
fix nested `has many :through` associations on unpersisted parent instances
|
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
Fixes: #16313
|
| | | | | | | | | |
|
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
Currently deleting through records doesn't respect `source_type`. It
should not be ignored in that case.
Related #23209.
Fixes #24116.
|
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
Currently `last` with `offset` behaves incorrectly because `offset` can
not be reversed like `limit`. Therefore, `offset` should also be handled
like `limit`.
|
| | | | | | | | | |
|
| |_|_|/ / / / /
|/| | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
Commit 4ec5b0d was for fixing the regression #18787, but #28379 fixes
#18787 as well. So 4ec5b0d is no longer necessary.
|
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
This is a partial revert of #26182. There is no reason to change the
default value.
|
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
Currently reflections keeps the order when first added even if when
redefining association. As a result of the order, redefining through
association which use newly added association will raise
`HasManyThroughOrderError`. We need to redefine reflection order as well
when redefining association.
Fixes #31068.
|
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | |
| | | | | | | | |
This method which is used only in the internal was introduced in
ac384820 and was renamed in #17579. It does not need to be exposed.
|
| |_|_|_|/ / /
|/| | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | |
| | | | | | | |
An empty string is an invalid value in Ruby's range class.
So need to handle `Float::INFINITY` as it is and cast it in
`encode_range`.
Fixes #31612
|
|\ \ \ \ \ \ \
| | | | | | | |
| | | | | | | | |
Add bulk alter support for PostgreSQL
|
| | | | | | | | |
|
|\ \ \ \ \ \ \ \
| | | | | | | | |
| | | | | | | | |
| | | | | | | | | |
Remove dormant check
|
|\ \ \ \ \ \ \ \ \
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
Use `count(:all)` in HasManyAssociation#count_records
|
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
Problem: Calling `count` on an association can cause invalid SQL queries
to be created where the `SELECT COUNT(a, b, c)` function receives
multiple columns. This will cause a `StatementInvalid` exception later
on.
Solution: Use `count(:all)`, which generates a `SELECT COUNT(*)...`
query independently of the association.
This also includes a test case that, before the fix, broke.
|
|\ \ \ \ \ \ \ \ \ \
| |_|_|_|_|_|_|_|/ /
|/| | | | | | | | |
| | | | | | | | | | |
fix the dirty tracking code's save hook overwriting missing attribute…
|
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
initialized-to-nil attributes. fixes #29017.
|
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
This is a regression test for #27864.
|
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
`ThroughReflection`
This method was introduced in #26718, which is internally used only in
`CollectionAssociation`. There is no need to be in the reflection
classes.
|
|\ \ \ \ \ \ \ \ \ \
| | | | | | | | | | |
| | | | | | | | | | | |
Bugfix foreign key replacement in inverse association
|
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
when model is added to collection association
|
| | | | | | | | | | | |
|
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | |
| | | | | | | | | | | |
We can't replace existing SELECT list as long as having DISTINCT, it
will cause incorrect result.
And also, PostgreSQL has a limitation that ORDER BY expressions must
appear in select list for SELECT DISTINCT.
Therefore, we should not replace existing SELECT list when using
DISTINCT.
Fixes #29779.
|
|/ / / / / / / / / /
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
We can't replace existing select list as long as referenced by ORDER BY.
|
| | | | | | | | | | |
|
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | |
| | | | | | | | | | |
Originally I tried to add `assert_equal pk.sql_type, ref.sql_type`. But
the assert failed even though the same type due to `sql_type` of primary
key in SQLite is upper case. Prefer lower case like other types.
|
| | | | | | | | | | |
|