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The alternative of #26213.
Currently `find_by` and `where` with AR object return inconsistent
result. This is caused by statement cache does not support AR object.
Passing to finder method to fix the issue.
Fixes #26210.
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mtsmfm/disable-referential-integrity-without-superuser-privileges"
This reverts commit eeac6151a55cb7d5f799e1ae33aa64a839cbc3aa, reversing
changes made to 5c40239d3104543e70508360d27584a3e4dc5baf.
Reason: Broke the isolated tests.
https://travis-ci.org/rails/rails/builds/188721346
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mtsmfm/fix-generator-command-for-nested-rails-engine"
This reverts commit 1e969bfb98b88799e2c759fce25a1d8cf00d7ce7, reversing
changes made to a5041f267ded119c2d00b8786c2f2c1e3f93c8a1.
Reason: It breaks the public API
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mtsmfm/fix-generator-command-for-nested-rails-engine
Fix generator command for nested (namespaced) rails engine
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If we create nested (namespaced) rails engine such like bukkits-admin,
`bin/rails g scaffold User name:string age:integer`
will create
`bukkits-admin/app/controllers/bukkits/users_controller.rb`
but it should create
`bukkits-admin/app/controllers/bukkits/admin/users_controller.rb`.
In #6643, we changed `namespaced_path` as root path
because we supposed application_controller is always in root
but nested rails engine's application_controller will not.
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Fix typo s/permited/permitted/
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```
% git grep -n permited
actionview/test/template/url_helper_test.rb:238: def test_button_to_with_permited_strong_params
actionview/test/template/url_helper_test.rb:245: def test_button_to_with_unpermited_strong_params
activerecord/test/cases/relations_test.rb:1620: def test_update_on_relation_passing_active_record_object_is_not_permited
```
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mtsmfm/disable-referential-integrity-without-superuser-privileges
Use `SET CONSTRAINTS` for `disable_referential_integrity` without superuser privileges
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privileges
ref: 72c1557254
- We must use `authors` fixture with `author_addresses` because of its foreign key constraint.
- Tests require PostgreSQL >= 9.4.2 because it had a bug about `ALTER CONSTRAINTS` and fixed in 9.4.2.
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kamipo/fix_select_rows_method_signature_for_consistency
Fix `select_rows` method signature for consistency
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Related #22973, #24708.
`select_all`, `select_one`, `select_value`, and `select_values` method
signature is `(arel, name = nil, binds = [])`.
But `select_rows` is `(sql, name = nil, binds = [])`.
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Deprecate passing `name` to `indexes` like `tables`
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Passing `name` to `tables` is already deprecated at #21601.
Passing `name` to `indexes` is also unused.
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Follow up to 4b6709e818177792735e99a70ec03210c0ac38dc.
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Rephrase CHANGELOG.md entry
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Rephrase entry with better sounding English.
[ci skip]
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Add explicit testing for `uncached` vs. `cached`
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There are a ton of middleware related tests in this file, and it seems
like `cached vs. `uncached` is being neglected. Added in a test to
confirm the expected behavior.
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Avoid to call `set_inverse_instance` twice for `has_many` association
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`create`, `create!`, and `concat` in `has_many` association hits
`set_inverse_instance` twice. It is enough to hit only once.
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remove needless warning for hstore
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Rails 5 supports only Postgresql 9.1 or higher, warning is needless because
in the case of Postgresql 9.0 or less does not work.
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Per the regression commit below, the commit changes the behavior of
`#changed?`to consult the `#changed_in_place?` method on `Type::Value` classes.
Per this change, `PostgreSQL::OID::Hstore` needs to override this method
in order to compare the deserialized forms of the two arguments. In
Ruby, two hashes are considered equal even if their key order is
different. This commit helps to bring that behavior to `Hstore` values.
Fixes regression introduced by 8e633e505880755e7e366ccec2210bbe2b5436e7
Fixes #27502
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Closes #27555.
[ Ben A. Morgan & Kasper Timm Hansen ]
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find and exists?
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Remove duplicated model class definitions in `test/cases/base_test.rb`
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In f1a0fa9 we moved backend specific timestamp behavior out of the type
and into the adapter. This was in line with our general attempt to
reduce the number of adapter specific type subclasses. However, on PG,
the array type performs all serialization, including database encoding
in its serialize method.
This means that we have converted the value into a string before
reaching the database, so no adapter specific logic can be applied (and
this also means that timestamp arrays were using the default `.to_s`
method on the given object, which likely meant timestamps were being
ignored in certain cases as well)
Ultimately I want to do a more in depth refactoring which separates
database serializer objects from the active model type objects, to give
us a less awkward API for introducing the attributes API onto Active
Model.
However, in the short term, we follow the solution we've applied
elsewhere for this. Move behavior off of the type and into the adapter,
and use a data object to allow the type to communicate information up
the stack.
Fixes #27514.
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Active Record supports MySQL >= 5.1.10
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Follow up to #25307 and #23458. Related with #27422.
We are using `information_schema.referential_constraints` since #25307.
The table was introduced in MySQL 5.1.10. MySQL 5.0 is too old. It is
enough to support >= 5.1.10 at least.
MySQL 5.0 GA was released in Dec 2005 and already EOL in Dec 2011.
MySQL 5.1 GA was released in Dec 2008 and already EOL in Dec 2013.
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Add missing `emit_warning_if_needed` for `changed?`
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We faced a significant performance decrease when we started using STI
without storing full namespaced class name in type column (because of PostgreSQL
length limit for ENUM types).
We realized that the cause of it is the slow STI model instantiation. Problematic
method appears to be `ActiveRecord::Base.compute_type`, which is used to find
the right class for STI model on every instantiation.
It builds an array of candidate types and then iterates through it calling
`safe_constantize` on every type until it finds appropriate constant. So if
desired type isn't the first element in this array there will be at least one
unsuccessful call to `safe_constantize`, which is very expensive, since it's
defined in terms of `begin; rescue; end`.
This commit is an attempt to speed up `compute_type` method simply by caching
results of previous calls.
```ruby
class MyCompany::MyApp::Business::Accounts::Base < ApplicationRecord
self.table_name = 'accounts'
self.store_full_sti_class = false
end
class MyCompany::MyApp::Business::Accounts::Free < Base
end
class MyCompany::MyApp::Business::Accounts::Standard < Base
# patch .compute_type there
end
puts '======================= .compute_type ======================='
Benchmark.ips do |x|
x.report("original method") do
MyCompany::MyApp::Business::Accounts::Free.send :compute_type, 'Free'
end
x.report("with types cached") do
MyCompany::MyApp::Business::Accounts::Standard.send :compute_type, 'Standard'
end
x.compare!
end
```
```
======================= .compute_type =======================
with types cached: 1529019.4 i/s
original method: 2850.2 i/s - 536.46x slower
```
```ruby
5_000.times do |i|
MyCompany::MyApp::Business::Accounts::Standard.create!(name: "standard_#{i}")
end
5_000.times do |i|
MyCompany::MyApp::Business::Accounts::Free.create!(name: "free_#{i}")
end
puts '====================== .limit(100).to_a ======================='
Benchmark.ips do |x|
x.report("without .compute_type patch") do
MyCompany::MyApp::Business::Accounts::Free.limit(100).to_a
end
x.report("with .compute_type patch") do
MyCompany::MyApp::Business::Accounts::Standard.limit(100).to_a
end
x.compare!
end
```
```
====================== .limit(100).to_a =======================
with .compute_type patch: 360.5 i/s
without .compute_type patch: 24.7 i/s - 14.59x slower
```
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kamipo/fix_update_counters_of_multiple_records_with_touch
Fix update counters of multiple records with touch: true
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`current_time_from_proper_timezone` and timestamp attributes methods was
pushed up to class method.
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to class method
Actually these methods don't need instantiation.
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Currently does not work the following example in the doc:
```ruby
# For the Posts with id of 10 and 15, increment the comment_count by 1
# and update the updated_at value for each counter.
Post.update_counters [10, 15], comment_count: 1, touch: true
# Executes the following SQL:
# UPDATE posts
# SET comment_count = COALESCE(comment_count, 0) + 1,
# `updated_at` = '2016-10-13T09:59:23-05:00'
# WHERE id IN (10, 15)
```
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b8f74860b61782e3b949ade3bb51bff40899e89b provided a nicer version of
`#test_structure_load` but the old version was not removed.
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* Rename update -> touch to remain consistent with the other docs
language of "touch"'ing.
* Remove the sentence that's repeated from just above and rephrase.
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Dump schema cache for custom connection
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Today `rake db:schema:cache:dump` only supports dumping cache for a
single connection (`ActiveRecord::Base.connection`). This doesn't work
for apps with multiple databases.
This PR makes `DatabaseTasks` to provide an API for dumping schema cache
for any connection.
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`touch_updates` calls `Time.now` via `current_time_from_proper_timezone`
so it is better to not invoke `touch_updates` if it is unnecessary.
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* Refactor to use `touch_updates`
Ensures we only call `current_time_from_proper_timezone` from one place.
* Clarify touch default in tests.
Not interested in what happens when passed false but that
nothing passed means no touching.
* Backdate touched columns in tests.
We can't be sure a test progresses through time, so our
touching code may be working correctly but the test
itself is brittle.
Fix by backdating that's further in the past akin to
what the timestamps tests do:
https://github.com/rails/rails/blob/d753645d40e925973724e4c3a8617b654da90e41/activerecord/test/cases/timestamp_test.rb#L17
* Expand changelog entry.
Elaborate and show examples.
Closes #26995.
[ Jarred Trost & Kasper Timm Hansen ]
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