| Commit message (Collapse) | Author | Age | Files | Lines |
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Previously it was only possible to specify the location of the pidfile
for the 'rails server' command with the '-P' flag. This adds support for
specifying the pidfile using a PIDFILE env var, which can still be
overridden by the '-P' flag and with the default pidfile path unchanged.
The motivation for this feature comes from using Docker to run multiple
instances of the same rails app. When developing a rails app with
Docker, it's common to bind-mount the rails root directory in the
running container, so that changes to files are shared between the
container and the host. However, this doesn't work so well with the
pidfile and it's necessary to (remember to) add a '-P' flag to the
'rails server' command line; being able to specify this flag using an
env var would make developing with Rails+Docker a bit simpler.
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Stop serializing and parsing columns_hash in Active Record schema caches
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Autoload SyntaxErrorInTemplate
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When a SyntaxError is detected in a template we raise this exception. On
a first request to the server the exception we get a NameError since the
exception is not required from `active_view/template/error.rb` yet.
However later on it gets required and a second request will succeed.
On the first request we see the rails "Something Wen Wrong" page and not
the expected syntax error in template error page with the webconsole and
stacktrace. By autoloading the constant we fix this issue.
Co-authored-by: Gannon McGibbon <gannon.mcgibbon@gmail.com>
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Better error message for calling columns_hash
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When a record does not have a table name, as in the case for a record
with `self.abstract_class = true` and no `self.table_name` set the error
message raises a cryptic:
"ActiveRecord::StatementInvalid: Could not find table ''" this patch now
raises a new `TableNotSpecified Error`
Fixes: #36274
Co-Authored-By: Eugene Kenny <elkenny@gmail.com>
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Deduplicate various Active Record schema cache structures
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Real world database schemas contain a lot of duplicated data.
Some column names like `id`, `created_at` etc can easily be repeated
hundreds of times. Same for SqlTypeMetada, most database will contain
only a limited number of possible combinations.
This result in a lot of wasted memory.
The idea here is to make these data sctructures immutable, use a registry
to substitute similar instances with pre-existing ones.
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Avoid redundant `time.getutc` call if it is already utc time object
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Currently `type.serialize` and `connection.{quote|type_cast}` for a time
object always does `time.getutc` call regardless of whether it is
already utc time object or not, that duplicated proccess
(`connection.type_cast(type.serialize(time))`) allocates extra/useless
time objects for each type casting.
This avoids that redundant `time.getutc` call if it is already utc time
object. In the case of a model has timestamps (`created_at` and
`updated_at`), it avoids 6,000 time objects allocation for 1,000 times
`model.save`.
```ruby
ObjectSpace::AllocationTracer.setup(%i{path line type})
pp ObjectSpace::AllocationTracer.trace {
1_000.times { User.create }
}.select { |k, _| k[0].end_with?("quoting.rb", "time_value.rb") }
```
Before (c104bfe424e6cebe9c8e85a38515327a6c88b1f8):
```
{["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
203,
:T_ARRAY]=>[1004, 0, 778, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
220,
:T_STRING]=>[2, 0, 2, 1, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
209,
:T_ARRAY]=>[8, 0, 8, 1, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
57,
:T_ARRAY]=>[4, 0, 4, 1, 1, 0],
["~/rails/activemodel/lib/active_model/type/helpers/time_value.rb",
17,
:T_DATA]=>[4000, 0, 3096, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
120,
:T_DATA]=>[2000, 0, 1548, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
126,
:T_STRING]=>[4000, 0, 3096, 0, 1, 0]}
```
After (this change):
```
{["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
203,
:T_ARRAY]=>[1004, 0, 823, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
220,
:T_STRING]=>[2, 0, 2, 1, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
209,
:T_ARRAY]=>[8, 0, 8, 1, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
57,
:T_ARRAY]=>[4, 0, 4, 1, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/quoting.rb",
126,
:T_STRING]=>[2000, 0, 1638, 0, 1, 0]}
```
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Fix TranslationHelper#translate handling of Hash defaults
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It is sometimes expected of the `translate` methods to return a Hash,
for instance it's the case of the `number.format` key.
As such users might need to specify a Hash default, e.g.
`translate(:'some.format', default: { separator: '.', delimiter: ',' })`.
This works as expected with the `I18n.translate` methods,
however `TranslationHelper#translate` apply `Array()` on the default value.
As a result the default value end up as `[:separator, '.', :delimiter, ',']`.
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kamipo/group_by_with_order_by_virtual_count_attribute
PostgreSQL: Fix GROUP BY with ORDER BY virtual count attribute
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GROUP BY with virtual count attribute is invalid for almost all
databases, but it is valid for PostgreSQL, and it had worked until Rails
5.2.2, so it is a regression for Rails 5.2.3 (caused by 311f001).
I can't find perfectly solution for fixing this for now, but I would not
like to break existing apps, so I decided to allow referencing virtual
count attribute in ORDER BY clause when GROUP BY aggrigation (it partly
revert the effect of 311f001) to fix the regression #36022.
Fixes #36022.
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abhaynikam/fix-typo-in-active-record-multiple-database-guides
Fix typo initialzer -> initializer
[ci skip]
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Delete method definition in rails that is compatible with ruby defini…
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definition
Tests are also only on the `Time` class
Update doc forgetting to erase when moved
Update guide `Date` class to `Time` class and defined file
Update guide correction omission
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`content_types_to_serve_as_binary` [ci skip]
Ref: bcf370d689673031073ba2ac5588afe41cc315c9, 06ab7b27ea1c1ab357085439abacdb464f6742bf.
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Remove unused `Arel::Attributes.for`
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`Arel::Attributes.for` is no longer used since https://github.com/rails/arel/pull/196.
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soartec-lab/fix/guide_delete_description_for_date_and_time
Delete 'ruby' in the description of the method defined in rails [skip ci]
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No allocation `Arel::Visitors::ToSql#visit`
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Each `visit o, collector` allocates one extra array due to
receiving args by splat array.
https://github.com/rails/rails/blob/2c3332cc4c0fa77dbe2e13e8a792f80fbd8f4ad3/activerecord/lib/arel/visitors/visitor.rb#L27-L29
Currently 1,000 times `User.where(id: 1).to_sql` allocates 13,000
arrays in `visitor.accept`. This avoids receiving args by splat array,
it makes `visitor.accept` no array allocation.
```ruby
ObjectSpace::AllocationTracer.setup(%i{path line type})
pp ObjectSpace::AllocationTracer.trace {
1_000.times { User.where(id: 1).to_sql }
}.select { |k, _| k[2] == :T_ARRAY && k[0].end_with?("visitor.rb", "to_sql.rb") }
```
Before (2c3332cc4c0fa77dbe2e13e8a792f80fbd8f4ad3):
```
{["~/rails/activerecord/lib/arel/visitors/to_sql.rb",
18,
:T_ARRAY]=>[1000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/determine_if_preparable_visitor.rb",
11,
:T_ARRAY]=>[1000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/arel/visitors/visitor.rb",
12,
:T_ARRAY]=>[1000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/arel/visitors/to_sql.rb",
788,
:T_ARRAY]=>[3000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/arel/visitors/to_sql.rb",
794,
:T_ARRAY]=>[3000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/arel/visitors/to_sql.rb",
156,
:T_ARRAY]=>[1000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/arel/visitors/to_sql.rb",
443,
:T_ARRAY]=>[1000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/arel/visitors/to_sql.rb",
603,
:T_ARRAY]=>[1000, 0, 0, 0, 0, 0],
["~/rails/activerecord/lib/arel/visitors/to_sql.rb",
611,
:T_ARRAY]=>[1000, 0, 0, 0, 0, 0]}
```
After (this change):
```
{}
```
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Tables in tests are not always empty so `klass.first` does not always
find last created record.
Fixes #36479.
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https://buildkite.com/rails/rails/builds/61744#f12cc6cf-7458-4131-917a-9735615f6259/999-1010
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eileencodes/move-while_preventing_writes-to-handler
Move while_preventing_writes from conn to handler
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If we put the `while_preventing_writes` on the connection then the
middleware that sends reads to the primary and ensures they can't write
will not work. The `while_preventing_writes` will only be applied to the
connection which it's called on - which in the case of the middleware is
Ar::Base.
This worked fine if you called it directly like
`OtherDbConn.connection.while_preventing_writes` but Rails didn't have a
way of knowing you wanted to call it on all the connections.
The change here moves the `while_preventing_writes` method from the
connection to the handler so that it can block writes to all queries for
that handler. This will apply to all the connections associated with
that handler.
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Update multi-db docs
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* Add note about schema cache
* Add note about opening too many connections
* Improve headers in caveats section
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eileencodes/move-schema-migration-to-migration-context
Move SchemaMigration to migration_context
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This PR moves the `schema_migration` to `migration_context` so that we
can access the `schema_migration` per connection.
This does not change behavior of the SchemaMigration if you are using
one database. This also does not change behavior of any public APIs.
`Migrator` is private as is `MigrationContext` so we can change these as
needed.
We now need to pass a `schema_migration` to `Migrator` so that we can
run migrations on the right connection outside the context of a rake
task.
The bugs this fixes were discovered while debugging the issues around
the SchemaCache on initialization with multiple database. It was clear
that `get_all_versions` wouldn't work without these changes outside the
context of a rake task (because in the rake task we establish a
connection and change AR::Base.connection to the db we're running on).
Because the `SchemaCache` relies on the `SchemaMigration` information we
need to make sure we store it per-connection rather than on
ActiveRecord::Base.
[Eileen M. Uchitelle & Aaron Patterson]
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albertoalmagro/alberto/reverse-column-is-reversible
[ci skip] Update docs as `remove_column` can be reversed
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As `remove_column` can be reversed when a type is provided this example
was not accurate anymore.
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Allocation on demand in transactions
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Currently 1,000 transactions creates 10,000 objects regardless whether
it is necessary or not.
This makes allocation on demand in transactions, now 1,000 transactions
creates required 5,000 objects only by default.
```ruby
ObjectSpace::AllocationTracer.setup(%i{path line type})
pp ObjectSpace::AllocationTracer.trace {
1_000.times { User.create }
}.select { |k, _| k[0].end_with?("transaction.rb") }
```
Before (95d038f):
```
{["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
209,
:T_HASH]=>[1000, 0, 715, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
210,
:T_OBJECT]=>[1000, 0, 715, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
210,
:T_HASH]=>[1000, 0, 715, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
80,
:T_OBJECT]=>[1000, 0, 715, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
8,
:T_ARRAY]=>[1000, 0, 715, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
81,
:T_ARRAY]=>[1000, 0, 715, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
289,
:T_STRING]=>[1000, 0, 714, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
116,
:T_ARRAY]=>[1000, 0, 714, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
120,
:T_ARRAY]=>[1000, 0, 714, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
121,
:T_HASH]=>[1000, 0, 714, 0, 1, 0]}
```
After (this change):
```
{["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
213,
:T_HASH]=>[1000, 0, 739, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
214,
:T_OBJECT]=>[1000, 0, 739, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
214,
:T_HASH]=>[1000, 0, 739, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
81,
:T_OBJECT]=>[1000, 0, 739, 0, 1, 0],
["~/rails/activerecord/lib/active_record/connection_adapters/abstract/transaction.rb",
304,
:T_STRING]=>[1000, 0, 738, 0, 1, 0]}
```
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[ci skip] Use default path in button_to documentation
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This is really a nit pick, but as this is the framework's documentation
I think it should follow standards as many times as possible to avoid
confusion in new users.
If we were using `resources :articles` in routes. which is what scaffold
adds, the generated helper would be `new_article_path` instead of
`new_articles_path`.
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Fix programmatic clicks with data-remote
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* Make ActiveRecord `ConnectionPool.connections` thread-safe.
ConnectionPool documentation is clear on the need to synchronize
access to @connections but also states that public methods do not
require synchronization. Existing code exposed @connections
directly via attr_reader. The fix uses synchronize() to lock
@connections then returns a copy to the caller using Array.dup().
Includes comments on the connections method that thread-safe access
to the connections array does not imply thread-safety of accessing
methods on the actual connections.
Adds a test-case that modifies the pool using a supported method
in one thread while a second thread accesses pool.connections.
The test fails without this patch.
Fixes #36465.
* Update activerecord/test/cases/connection_pool_test.rb
[jeffdoering + Rafael Mendonça França]
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images/getting_started: Update screenshot for missing action
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Introduce ActionView::Component
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Co-authored-by: Natasha Umer <natashau@github.com>
Co-authored-by: Aaron Patterson <tenderlove@github.com>
Co-authored-by: Shawn Allen <shawnbot@github.com>
Co-authored-by: Emily Plummer <emplums@github.com>
Co-authored-by: Diana Mounter <broccolini@github.com>
Co-authored-by: John Hawthorn <jhawthorn@github.com>
Co-authored-by: Nathan Herald <myobie@github.com>
Co-authored-by: Zaid Zawaideh <zawaideh@github.com>
Co-authored-by: Zach Ahn <engineering@zachahn.com>
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