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`primary key` is integer
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It's mentioned everywhere as `ActiveRecord::RecordNotFound` so to be
coherent with the rest of the documentation I've applied it here.
Also doc was saying if the parameter is integer it coerces it which is
other way around.
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This fixes both #34555 and #34738.
Revert "Merge pull request #34900 from gmcgibbon/fix_test_find_only_some_columns"
This reverts commit ff807f823b869d3491935a096183ee2bebd58e7b, reversing
changes made to 9f1a07af0499080c9fd8815705a03a4c7e8fb506.
Revert "Merge pull request #34560 from gmcgibbon/fix_decorate_leak_on_serial_attr_test"
This reverts commit bd62389307e138ee0f274a9d62697567a3334ea0, reversing
changes made to ec66c6a2fa4ee200259341a18ecd96310f388ba3.
Revert "Fix unstable `test_serialized_attribute_works_under_concurrent_initial_access` test"
This reverts commit 65c4b1b50df3fa59198de2d45d1f54b61ecc7864.
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`ClassSpecificRelation`
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https://travis-ci.org/rails/rails/jobs/499061043#L1187-L1193
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When the middle association doesn't have any records and the inner
association is not an empty scope the owner will be `nil` so we can't
try to reset the inverse association.
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[ci skip]
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Add negative scopes for all enum values
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Caching `find_by` statements on STI subclasses is unsafe, since
`type IN (?,?,?,?)` part is dynamic, and we don't have SQL statements
cache invalidation when a STI subclass is created or removed for now.
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Also, max precision (= 6) isn't regarded as unlimited precision for now.
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https://buildkite.com/rails/rails/builds/59106#596284a1-4692-4640-8a50-c4286e173bbb/115-126
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jvillarejo/fix_wrong_size_query_with_distinct_select
Fix different `count` calculation when using `size` with DISTINCT `select`
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DISTINCT
When using `select` with `'DISTINCT( ... )'` if you use method `size` on a non loaded relation it overrides the column selected by passing `:all` so it returns different value than count.
This fixes #35214
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Support read queries with leading characters while preventing writes
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* The READ_QUERY regex would consider reads to be writes if they started with
spaces or parens. For example, a UNION query might have parens around each
SELECT - (SELECT ...) UNION (SELECT ...).
* It will now correctly treat these queries as reads.
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Also, improving an argument error message for `limit`, extracting around
`type_to_sql` code into schema statements, and more exercise tests.
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Related cbcdecd, 2a56b2d.
This is a regression caused by cbcdecd.
If query caching is enabled, prepared statement handles are never
re-used, since we missed that a query is preprocessed when query caching
is enabled, but doesn't keep the `preparable` flag.
We should care about that case.
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Ensure `update_all` series doesn't care optimistic locking
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Incrementing the lock version invalidates any other process's optimistic
lock, which is the desired outcome: the record no longer looks the same
as it did when they loaded it.
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Use "support/stubs/strong_parameters" instead.
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old SQLite3
It seems that the reason why the `test_select_with_subquery_in_from_uses_original_table_name`
does not pass is that the return value of `sqlite3_column_name()` is
wrong due to subquery flattening.
This seems to have been fixed with SQLite 3.20.0(https://sqlite.org/changes.html#version_3_20_0).
But CI uses the old version(maybe 3.11.0), I added `DISTINCT` to avoid
optimization by subquery flattening.
Ref: https://sqlite.org/optoverview.html#flattening
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Somehow `ENV["BUILDKITE"]` didn't work as expected.
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Buildkite as well
https://buildkite.com/rails/rails/builds/58981#2423c707-7c56-4639-a76e-8db4fd1e5cf3/102-111
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I'm not sure why the test is failed on Travis, it passed on locally.
I suspect that failure is a bug on SQLite3, so just skip the test for
now, since it was not covered by before.
https://travis-ci.org/rails/rails/jobs/496726410#L1198-L1208
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This is caused by 0ee96d1.
Since #18744, `select` columns doesn't be qualified by table name if
using `from`. 0ee96d1 follows that for `pluck` as well.
But people depends that `pluck` columns are qualified even if using
`from`.
So I've fixed that to be qualified if `from` has the original table name
to keep the behavior as much as before.
Fixes #35359.
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The argument of `_update_record` and `_create_record` is
`attribute_names`, that is reserved for overriding by partial writes
attribute names.
https://github.com/rails/rails/blob/67e20d1d4854d834e9e43e56486d37cd98983f0d/activerecord/lib/active_record/persistence.rb#L719
https://github.com/rails/rails/blob/67e20d1d4854d834e9e43e56486d37cd98983f0d/activerecord/lib/active_record/persistence.rb#L737
https://github.com/rails/rails/blob/67e20d1d4854d834e9e43e56486d37cd98983f0d/activerecord/lib/active_record/attribute_methods/dirty.rb#L171
https://github.com/rails/rails/blob/67e20d1d4854d834e9e43e56486d37cd98983f0d/activerecord/lib/active_record/attribute_methods/dirty.rb#L177
The reason that no failing with extra args is that `Timestamp` module
which is most outside module of the `_update_record` discards the extra
args.
https://github.com/rails/rails/blob/67e20d1d4854d834e9e43e56486d37cd98983f0d/activerecord/lib/active_record/timestamp.rb#L104
But that looks odd dependency. It should not be passed extra args,
should only be passed attribute names.
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kamipo/dont_allow_non_numeric_string_matches_to_zero
Don't allow `where` with non numeric string matches to 0 values
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This is a follow-up of #35310.
Currently `Topic.find_by(id: "not-a-number")` matches to a `id = 0`
record. That is considered as silently leaking information.
If non numeric string is given to find by an integer column, it should
not be matched to any record.
Related #12793.
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collation issues
In MySQL, the default collation is case insensitive. Since the
uniqueness validator enforces case sensitive comparison by default, it
frequently causes mismatched collation issues (performance, weird
behavior, etc) to MySQL users.
https://grosser.it/2009/12/11/validates_uniqness_of-mysql-slow/
https://github.com/rails/rails/issues/1399
https://github.com/rails/rails/pull/13465
https://github.com/gitlabhq/gitlabhq/commit/c1dddf8c7d947691729f6d64a8ea768b5c915855
https://github.com/huginn/huginn/pull/1330#discussion_r55152573
This extracts `default_uniqueness_comparison` to ease to handle the
mismatched collation issues on the connection.
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Revert "Fix lint `ShadowingOuterLocalVariable`"
This reverts commit 38bd45a48992b500478a82d56d31468a322937a8.
Change of variable name
Fix lint `ShadowingOuterLocalVariable`
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This covers what #34626 fixes.
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Reduce unused allocations when casting UUIDs for Postgres
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Using the subscript method `#[]` on a string has several overloads and
rather complex implementation. One of the overloads is the capability to
accept a regular expression and then run a match, then return the
receiver (if it matched) or one of the groups from the MatchData.
The function of the `UUID#cast` method is to cast a UUID to a type and
format acceptable by postgres. Naturally UUIDs are supposed to be
string and of a certain format, but it had been determined that it was
not ideal for the framework to send just any old string to Postgres and
allow the engine to complain when "foobar" or "" was sent, being
obviously of the wrong format for a valid UUID. Therefore this code was
written to facilitate the checking, and if it were not of the correct
format, a `nil` would be returned as is conventional in Rails.
Now, the subscript method will allocate one or more strings on a match
and return one of them, based on the index parameter. However, there
is no need for a new string, as a UUID of the correct format is already
such, and so long as the format was verified then the string supplied is
adequate for consumption by the database.
The subscript method also creates a MatchData object which will never be
used, and so must eventually be garbage collected.
Garbage collection indeed. This innocuous method tends to be called
quite a lot, for example if the primary key of a table is a uuid, then
this method will be called. If the foreign key of a relation is a UUID,
once again this method is called. If that foreign key is belonging to
a has_many relationship with dozens of objects, then again dozens of
UUIDs shall be cast to a dup of themselves, and spawn dozens of
MatchData objects, and so on.
So, for users that:
* Use UUIDs as primary keys
* Use Postgres
* Operate on collections of objects
This accomplishes a significant savings in total allocations, and may
save many garbage collections.
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Replaced usage of where.delete/destroy_all with delete/destroy_by
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Fix reset of the source association when through association is loaded
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The special case happens when through association has a custom scope
that is applied to the source association when loading.
In this case, the soucre association would need to be reset after
main association is loaded. See tests.
The special case exists when a through association has
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Reset column info after making Topic tz-aware
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