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actual result
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Otherwise it will occur syntax error if primary key is a reserved word.
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Arel doesn't support subselect generation for DELETE unlike UPDATE yet,
but we already have that generation in connection adapters. We can
simply use the subselect generated by that one.
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`offset`
Most RDBMS (except SQLite) requires subselect for UPDATE with OFFSET,
but Arel doesn't support executable subselect generation for MySQL's
UPDATE yet. We need to use the subselect generated by the connection
adapter for now, it works well.
Fixes #30148.
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shioyama/reset_column_information_redefine_child_attribute_methods
Undefine attribute methods of descendants when resetting column information
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Looks like it is failed due to datetime rounding. Related #23521.
https://travis-ci.org/rails/rails/jobs/317734560#L1980-L1984
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Previously table name qualified `*` is used in that case. If it is not
qualified with a table name, an ambiguous column name error will occur
when using JOINs.
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Modify test to correctly pass attributes hash
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These are using `remove_column` directly, not used `t` in
`change_table`.
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`dump_schema_cache` fills `schema_cache` even if the test that modifies
the schema has properly cleared the schema cache.
Fixes #31463.
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Follow up #31428 to address similar exceptions with mysql2 adapter
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Initial support for running Rails on FIPS-certified systems
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implementation
and defaults to `Digest::MD5`.
Replaced calls to `::Digest::MD5.hexdigest` with calls to `ActiveSupport::Digest.hexdigest`.
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Log the original call site for an ActiveRecord query
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This new ActiveRecord configuration option allows you to easily
pinpoint what line of application code is triggering SQL queries in the
development log by appending below each SQL statement log the line of
Ruby code that triggered it.
It’s useful with N+1 issues, and to locate stray queries.
By default this new option ignores Rails and Ruby code in order to
surface only callers from your application Ruby code or your gems.
It is enabled on newly generated Rails 5.2 applications and can be
enabled on existing Rails applications:
```ruby
Rails.application.configure do
# ...
config.active_record.verbose_query_logs = true
end
```
The `rails app:upgrade` task will also add it to
`config/development.rb`.
This feature purposely avoids coupling with
ActiveSupport::BacktraceCleaner since ActiveRecord can be used without
ActiveRecord. This decision can be reverted in the future to allow more
configurable backtraces (the exclusion of gem callers for example).
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Follow up of #31432.
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`BigDecimal.new` has been deprecated in BigDecimal 1.3.3
which will be a default for Ruby 2.5.
Refer https://github.com/ruby/bigdecimal/commit/533737338db915b00dc7168c3602e4b462b23503
```
$ cd rails/activerecord/
$ git grep -l BigDecimal.new | grep \.rb | xargs sed -i -e "s/BigDecimal.new/BigDecimal/g"
```
- Changes made only to Active Record. Will apply the same change to
other module once this commit is merged.
- The following deprecation has not been addressed because it has been
reported at `ActiveRecord::Result.new`. `ActiveRecord::Result.ancestors`
did not show `BigDecimal`.
* Not addressed
```ruby
/path/to/rails/activerecord/lib/active_record/connection_adapters/mysql/database_statements.rb:34:
warning: BigDecimal.new is deprecated
```
* database_statements.rb:34
```ruby
ActiveRecord::Result.new(result.fields, result.to_a) if result
```
* ActiveRecord::Result.ancestors
```ruby
[ActiveRecord::Result,
Enumerable,
ActiveSupport::ToJsonWithActiveSupportEncoder,
Object,
Metaclass::ObjectMethods,
Mocha::ObjectMethods,
PP::ObjectMixin,
ActiveSupport::Dependencies::Loadable,
ActiveSupport::Tryable,
JSON::Ext::Generator::GeneratorMethods::Object,
Kernel,
BasicObject]
```
This commit has been tested with these Ruby and BigDecimal versions
- ruby 2.5 and bigdecimal 1.3.3
```
$ ruby -v
ruby 2.5.0dev (2017-12-14 trunk 61217) [x86_64-linux]
$ gem list |grep bigdecimal
bigdecimal (default: 1.3.3, default: 1.3.2)
```
- ruby 2.4 and bigdecimal 1.3.0
```
$ ruby -v
ruby 2.4.2p198 (2017-09-14 revision 59899) [x86_64-linux-gnu]
$ gem list |grep bigdecimal
bigdecimal (default: 1.3.0)
```
- ruby 2.3 and bigdecimal 1.2.8
```
$ ruby -v
ruby 2.3.5p376 (2017-09-14 revision 59905) [x86_64-linux]
$ gem list |grep -i bigdecimal
bigdecimal (1.2.8)
```
- ruby 2.2 and bigdecimal 1.2.6
```
$ ruby -v
ruby 2.2.8p477 (2017-09-14 revision 59906) [x86_64-linux]
$ gem list |grep bigdecimal
bigdecimal (1.2.6)
```
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* Ruby 2.4 introduces `report_on_exception` to control if it reports exceptions in thread,
this default value has been `false` in Ruby 2.4.
Refer https://www.ruby-lang.org/en/news/2016/11/09/ruby-2-4-0-preview3-released/
* Ruby 2.5 changes `report_on_exception` default value to `true`
since this commit https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?revision=61183&view=revision
This pull request suppresses expected exceptions by setting `report_on_exception` = `false`
it also supports Ruby 2.3 which does not have`report_on_exception`.
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We need to pass scope attributes to `klass.new` to detect subclass.
Otherwise `subclass_from_attributes` can't detect subclass which is had
in scope attributes.
Fixes #18062.
Closes #18227.
Closes #30720.
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These changes prevent ignoring environments name of which is a `Symbol`
```
config.active_record.protected_environments = ['staging', :production]
```
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Currently, sanitize methods are private. So need `send` to use from
outside class.
However, sometimes want to use sanitize methods from outside Class when
want to generate SQL including multiple tables like search.
In order to avoid using `send` in such a case, changed methods to public.
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bogdanvlviv/fix-conflicts-counter_cache-with-touch-by-optimistic_locking
Fix conflicts `counter_cache` with `touch: true` by optimistic locking.
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```
# create_table :posts do |t|
# t.integer :comments_count, default: 0
# t.integer :lock_version
# t.timestamps
# end
class Post < ApplicationRecord
end
# create_table :comments do |t|
# t.belongs_to :post
# end
class Comment < ApplicationRecord
belongs_to :post, touch: true, counter_cache: true
end
```
Before:
```
post = Post.create!
# => begin transaction
INSERT INTO "posts" ("created_at", "updated_at", "lock_version")
VALUES ("2017-12-11 21:27:11.387397", "2017-12-11 21:27:11.387397", 0)
commit transaction
comment = Comment.create!(post: post)
# => begin transaction
INSERT INTO "comments" ("post_id") VALUES (1)
UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) + 1,
"lock_version" = COALESCE("lock_version", 0) + 1 WHERE "posts"."id" = 1
UPDATE "posts" SET "updated_at" = '2017-12-11 21:27:11.398330',
"lock_version" = 1 WHERE "posts"."id" = 1 AND "posts"."lock_version" = 0
rollback transaction
# => ActiveRecord::StaleObjectError: Attempted to touch a stale object: Post.
Comment.take.destroy!
# => begin transaction
DELETE FROM "comments" WHERE "comments"."id" = 1
UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) - 1,
"lock_version" = COALESCE("lock_version", 0) + 1 WHERE "posts"."id" = 1
UPDATE "posts" SET "updated_at" = '2017-12-11 21:42:47.785901',
"lock_version" = 1 WHERE "posts"."id" = 1 AND "posts"."lock_version" = 0
rollback transaction
# => ActiveRecord::StaleObjectError: Attempted to touch a stale object: Post.
```
After:
```
post = Post.create!
# => begin transaction
INSERT INTO "posts" ("created_at", "updated_at", "lock_version")
VALUES ("2017-12-11 21:27:11.387397", "2017-12-11 21:27:11.387397", 0)
commit transaction
comment = Comment.create!(post: post)
# => begin transaction
INSERT INTO "comments" ("post_id") VALUES (1)
UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) + 1,
"lock_version" = COALESCE("lock_version", 0) + 1,
"updated_at" = '2017-12-11 21:37:09.802642' WHERE "posts"."id" = 1
commit transaction
comment.destroy!
# => begin transaction
DELETE FROM "comments" WHERE "comments"."id" = 1
UPDATE "posts" SET "comments_count" = COALESCE("comments_count", 0) - 1,
"lock_version" = COALESCE("lock_version", 0) + 1,
"updated_at" = '2017-12-11 21:39:02.685520' WHERE "posts"."id" = 1
commit transaction
```
Fixes #31199.
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Quote colum_names when building select:
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- #30980 introcuded a change to not use `Arel.star` when model have ignored columns, a query used to look like `SELECT *. FROM developers` whereas now it would like `SELECT column1, column2 FROM developers`
- If a column has the same name has a reserved database specific keyword (such as key, where ...) then the query would fail because the names aren't quoted
- Quoting almost always happen unless we use a `from` clause in the query https://github.com/rails/rails/blob/9965b98dc0d58a86e10b4343bb6e15e01661a8c3/activerecord/lib/active_record/relation/query_methods.rb#L1052
- This PR cast all columns name to symbols in order for the quoting logic to be picked up https://github.com/rails/rails/blob/9965b98dc0d58a86e10b4343bb6e15e01661a8c3/activerecord/lib/active_record/relation/query_methods.rb#L1054-L1055
- A reproduction script can be found here https://gist.github.com/Edouard-chin/f56d464a0adcb76962afc1a9134a1536
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Follow up of #31390.
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Currently, `test_copy_table_with_composite_primary_keys` test fails
depending on execution order. The reproduction step is as follows.
```
$ ARCONN=sqlite3_mem bin/test -w -n "/^(?:CalculationsTest#(?:test_#skip_query_cache\\!_for_a_simple_calculation)|PrimaryKeyAnyTypeTest#(?:test_any_type_primary_key)|ActiveRecord::ConnectionAdapters::SQLite3AdapterTest#(?:test_copy_table_with_composite_primary_keys))$/" --seed 41545
```
The column info is cached by `PrimaryKeyAnyTypeTest#test_any_type_primary_key`,
and the test seems to have failed due to the influence.
So clear cache after testing so as not to affect other tests.
Related: https://travis-ci.org/rails/rails/jobs/313730163#L1788
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`connection.primary_key` also return composite primary keys, so
`from_primary_key_column` may not be found even if `from_primary_key` is
presented.
```
% ARCONN=sqlite3 be ruby -w -Itest
test/cases/adapters/sqlite3/sqlite3_adapter_test.rb -n
test_copy_table_with_composite_primary_keys
Using sqlite3
Run options: -n test_copy_table_with_composite_primary_keys --seed 19041
# Running:
E
Error:
ActiveRecord::ConnectionAdapters::SQLite3AdapterTest#test_copy_table_with_composite_primary_keys:
NoMethodError: undefined method `type' for nil:NilClass
/path/to/rails/activerecord/lib/active_record/connection_adapters/sqlite3_adapter.rb:411:in
`block in copy_table'
```
This change fixes `copy_table` to do not lose composite primary keys.
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This regression was caused at 213796fb due to polymorphic predicates are
combined by `Arel::Nodes::And`. But I'd like to keep that combined
because it would help inverting polymorphic predicates correctly
(e9ba12f7), and we can collect equality nodes regardless of combined by
`Arel::Nodes::And` (`a AND (b AND c) AND d` == `a AND b AND c AND d`).
This change fixes the regression to collect equality nodes in
`Arel::Nodes::And` as well.
Fixes #31338.
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Fix sqlite migrations with custom primary keys
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Previously, if a record was created with a custom primary key, that
table could not be migrated using sqlite. While attempting to copy the
table, the type of the primary key was ignored.
Once that was corrected, copying the indexes would fail because custom
primary keys are autoindexed by sqlite by default.
To correct that, this skips copying the index if the index name begins
with "sqlite_". This is a reserved word that indicates that the
index is an internal schema object. SQLite prohibits applications from
creating objects whose names begin with "sqlite_", so this string should
be safe to use as a check.
ref https://www.sqlite.org/fileformat2.html#intschema
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database which requires primary key value mentioned in insert statement explicitly.
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Since CLOB data type has many limitations in Oracle SELECT WHERE clause.
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This reverts commit 23226d04f921b79f0077ba38c5a5a923b6d43f89, reversing
changes made to 7544cf7603959f25100b21f70b5e70354bed7e45.
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Oracle enhanced adapter does not fully support JSON datatype then `supports_json?` returns `false`.
I wanted to skip known failures and errors when tested with Oracle enhanced adapter.
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This is a regression since Rails 4.2.
SQLite3 integer is stored in 1, 2, 3, 4, 6, or 8 bytes depending on the
magnitude of the value. Assuming default valid value as 4 bytes caused
that actual valid value in INTEGER storage class cannot be stored and
existing value cannot be found.
https://www.sqlite.org/datatype3.html
We should allow valid value in INTEGER storage class in SQLite3 to fix
the regression.
Fixes #22594.
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Actually SQLite3 doesn't have JSON storage class (so it is stored as a
TEXT like Date and Time). But emulating JSON types is convinient for
making database agnostic migrations.
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If do not execute a type changing first, filling in default value may be
failed.
```
% ARCONN=postgresql be ruby -w -Itest test/cases/migration/compatibility_test.rb -n test_legacy_change_column_with_null_executes_update
Using postgresql
Run options: -n test_legacy_change_column_with_null_executes_update --seed 20459
E
Error:
ActiveRecord::Migration::CompatibilityTest#test_legacy_change_column_with_null_executes_update:
StandardError: An error has occurred, this and all later migrations canceled:
PG::StringDataRightTruncation: ERROR: value too long for type character varying(5)
: UPDATE "testings" SET "foo"='foobar' WHERE "foo" IS NULL
```
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`klass` has removed in 5358f2b67bd6fb12d708527a4a70dcab65513c5e.
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This test failed due to dirty schema cache. It is needed to call
`clear_cache!` when using same named table with different definition.
https://travis-ci.org/rails/rails/jobs/310627767#L769-L772
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Extract sql fragment generators from PostgreSQL adapter
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Add validate_constraint and update naming
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gregnavis/support-postgresql-operator-classes-in-indexes
Add support for PostgreSQL operator classes to add_index
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Add support for specifying non-default operator classes in PostgreSQL
indexes. An example CREATE INDEX query that becomes possible is:
CREATE INDEX users_name ON users USING gist (name gist_trgm_ops);
Previously it was possible to specify the `gist` index but not the
custom operator class. The `add_index` call for the above query is:
add_index :users, :name, using: :gist, opclasses: {name: :gist_trgm_ops}
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