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Add test for parsing application/vnd.api+json
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rails/application: allow passing an env to config_for
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we should be using a countdown latch instead of rolling our own
busy-loop.
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samphilipd/sam/manual_locking_on_schema_migrations
Make migrations concurrent safe (using advisory locks)
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- Addresses issue #22092
- Works on Postgres and MySQL
- Uses advisory locks because of two important properties:
1. The can be obtained outside of the context of a transaction
2. They are automatically released when the session ends, so if a
migration process crashed for whatever reason the lock is not left
open perpetually
- Adds get_advisory_lock and release_advisory_lock methods to database
adapters
- Attempting to run a migration while another one is in process will
raise a ConcurrentMigrationError instead of attempting to run in
parallel with undefined behavior. This could be rescued and
the migration could exit cleanly instead. Perhaps as a configuration
option?
Technical Notes
==============
The Migrator uses generate_migrator_advisory_lock_key to build the key
for the lock. In order to be compatible across multiple adapters there
are some constraints on this key.
- Postgres limits us to 64 bit signed integers
- MySQL advisory locks are server-wide so we have to scope to the
database
- To fulfil these requirements we use a Migrator salt (a randomly
chosen signed integer with max length of 31 bits) that identifies
the Rails migration process as the owner of the lock. We multiply
this salt with a CRC32 unsigned integer hash of the database name to
get a signed 64 bit integer that can also be converted to a string
to act as a lock key in MySQL databases.
- It is important for subsequent versions of the Migrator to use the
same salt, otherwise different versions of the Migrator will not see
each other's locks.
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This assumes only one query was ever executed, but it appears to
sometimes be loading schema information. We can just look at the array
of queries, rather than the "first" one that was run
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When testing cache issues, it is useful to log the actual key, including namespace
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full key that actually used by the underline cache implementation
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added ActiveRecord::Relation#outer_joins
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Example:
User.left_outer_joins(:posts)
=> SELECT "users".* FROM "users" LEFT OUTER JOIN "posts" ON "posts"."user_id" = "users"."id"
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We are using the same version constraint in the database adapters so
when a new version of the adapter that doesn't work with the version of
rails is released we don't break new applications.
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This reverts commit 9f93a5efbba3e1cbf0bfa700a17ec8d1ef60d7c6.
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Before this commit, if
`ActiveRecord::Base.belongs_to_required_by_default` is set to `true`,
then creating a record through `has_and_belongs_to_many` fails with the
cryptic error message `Left side must exist`. This is because
`inverse_of` isn't working properly in this case, presumably since we're
doing trickery with anonymous classes in the middle.
Rather than following this rabbit hole to try and get `inverse_of` to
work in a case that we know is not publicly supported, we can just turn
off this validation to match the behavior of 4.2 and earlier.
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rather than an action name and *args. The *args were not being used in regular
applications outside tests. This causes a backwards compatibility
issue, but reduces array allocations for most users.
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Support SQL sanitization in AR::QueryMethods#order
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Add support for sanitizing arrays in SQL ORDER clauses.
This is useful when using MySQL `ORDER BY FIELD()` to return records in
a predetermined way.
```ruby
Tag.order(['field(id, ?', [1,3,2]].to_sql
# => SELECT "tags".* FROM "tags" ORDER BY field(id, 1,3,2)
```
Prior to this, developers must be careful to sanitize `#order` arguments
themselves.
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`dispatch` sets the request and response on the controller for us
automatically, so the test harness doesn't need to know the internals of
how request / response is set.
Conflicts:
actionpack/lib/action_controller/test_case.rb
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PostgreSQL, Replace static connection param list by libpq's dynamic list
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This makes the connection adapter future-proof regarding to new parameters.
To maintain backward compatibility, :requiressl is added by hand. It is
deprecated by PostgreSQL since 2003, but still accepted by libpq.
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Set standard_conforming_strings with SET
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ActiveSupport::TimeWithZone documentation
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The stated value of `now` would actually give the same result for
`now - 24.hours` and `now - 1.day`. Use an alternative value for
`now` that demonstrates the difference between subtracting
`24.hours` and `1.day`.
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This is part of a refactoring to make it easier to allow `order` to use
sanitize like just about everything else on relation. The deleted test
doesn't give any reasoning as to why passing `nil` to `order` needs to
be supported, and it's rather nonsensical. I can almost see allowing an
empty string being passed (though I'm tempted to just disallow it...)
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default value for FixtureSet.fixture_class_names ought to be a Class
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Look at `TestFixtures.set_fixture_class`. As documented, it
accepts a mapping of fixture identifiers (string or symbol) to Classes
(the model classes that implement the named fixture).
Look now at the initialization of `TestFixtures.fixture_class_names`.
It defines a Hash, which will return a string by default (where the
string is the estimated class name of the given fixture identifier).
Now look at TestFixtures.load_fixtures. It calls `FixtureSet.create_fixtures`,
passing in the mapping of `fixture_class_names`.
Following this on to `FixtureSet.create_fixtures`, this instantiates a
`FixtureSet::ClassCache`, passing in the map of class names.
`ClassCache`, in turn, calls `insert_class` for each value in the cache.
(Recall that `set_fixture_class` puts Class objects in there, while the
default proc for the mapping puts String objects.)
Look finally at `insert_class`. If the value is present, it checks to
see if the value is a subclass of `AR::Base`. Fair enough...but wait!
What if the value is a String? You get an exception, because a String
instance cannot be compared with a Class.
Judging from the implementation, it seems like the expected behavior
here is for `fixture_class_names` to have no default proc. Look-ups are
supposed to happen via `ClassCache`, with `fixture_class_names` existing
solely as a repository for explicitly-registered class mappings.
That is what this change does.
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leckylao/actionview-date-helpers-selected-value-to-accept-hash-like-default
making date_helper selected value to accept Hash like the default option
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{day: params[:day].to_i, month: params[:month].to_id}
Adds in test test_date_select_with_selected_in_hash and change log
fixes typo in CHANGELOG
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akihiro17/fix-preload-association""
This reverts commit 5243946017d09afff4d70d273b0fcdfd41a4b22a.
This fixes an issue with the build where tests would fail on mysql and
postgresql due to different ordering.
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Avoid disabling postgres errors
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In Postgres 8.1 the standard_conforming_strings setting was read-only,
meaning you got an error if you tried to update it. By filtering on
`context = 'user'` we only try to update the setting if it's
user-writable[1].
[1]: http://www.postgresql.org/docs/9.4/static/view-pg-settings.html
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The standard_conforming_strings setting doesn't exist on all versions of
Postgres, but if it does exist, Rails turns it on. Previously this was done by
effectively disabling errors on the Postgres connection, issuing a SET to turn
the setting on, then re-enabling errors on the connection. However, if you're
running pgbouncer in transaction-pooling mode, you can't guarantee that
successive calls to `#execute` will be sent to the same pgbouncer-postgres
connection, so you can end up disabling errors on a different postgres
connection, and never re-enabling them. Future queries on that connection that
result in errors (e.g. violating unique constraints) will leave the connection
in a bad state where successive queries will fail.
This commit sets standard_conforming_strings by issuing an UPDATE to
pg_settings, which will update the setting if it exists, and do nothing if it
doesn't (rather than erroring out like SET would), which means we can remove
the error-disabling code.
It's also worth noting that Postgres has allowed standard_conforming_strings to
be updated since 8.2 (which is the oldest version Rails supports), so
technically we probably don't even need to be defensive here.
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This reverts commit 6dc6a0b17cfaf7cb6aa2b1c163b6ca141b538a8e, reversing
changes made to ec94f00ba3cf250eb54fc5b7a5e3ed4b90164f34.
This pull request broke the build.
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Properly indent '<head>' and '<body>' within '<html>'
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This method was already niche, and is now redundant with `.new`
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`HashWithIndifferentAccess.new` respects the default value or proc on
objects that respond to `#to_hash`
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objects that respond to `#to_hash`.
Builds on the work of #12550 where `.new` will convert the object (that respond to `#to_hash`) to a hash and
add that hash's keys and values to itself.
This change will also make `.new` respect the default value or proc of objects that respond to `#to_hash`.
In other words, this `.new` behaves exactly like `.new_from_hash_copying_default`.
`.new_from_hash_copying_default` now simply invokes `.new` and any references to `.new_from_hash_copying_default`
are replaced with `.new`.
Added tests confirm behavior.
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DRY up STI subclass logic
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We don't need to use `String#+` or create all the intermediate strings
to break a string into multiple lines. We can just write a c-style
multiline string literal. This is by no means a hotpath, but this is
clearer to me anyway.
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The first one is quite straightforward. We want to give the proper error
message in the case where a top level constant exists, but we're looking
for a nested one. We just need to port over the change to use
`subclass.name` into these changes.
The second set of failures, which are only present in the mysql adapter
tests, are stranger to me. The failure occurs because we were
previously comparing `subclass.name == self.name` instead of `subclass
== self`. However, I don't think that we need to support creating
anonymous classes which share a table with a class that uses STI,
overrides `name` to return the same name as athe class that we have no
other relationship with, when not assigned to a constant so it could
never be used anyway...
The commits around why that exist give no context, and I think they're
just poorly written tests (WTF does `test_schema` mean anyway, and why
does calling `.first` on some anonymous class test it?). We'll just
disable STI on that class.
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I'm making this commit separately because this has failing tests and
style nitpicks that I'd like to make as individual commits, to make the
changes I'm making explicit.
We still want a single merge commit at the end, however.
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