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This used to raise a `IrreversibleMigration` error (since #10437).
However since `remove_index :table, :column` is probably the most basic
use-case we should make it reversible again.
Conflicts:
activerecord/CHANGELOG.md
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If a getter has side effects on the DB, `changes_applied` will be called
twice. The second time will try and remove the changed attributes cache,
and will crash because it's already been unset. This also demonstrates
that we shouldn't assume that calling getters won't change the value of
`changed_attributes`, and we need to clear the cache if an attribute is
modified.
Fixes #20531.
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use our own runner for Rails framework components `bin/test`
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Make remove_foreign_key reversible
Conflicts:
activerecord/CHANGELOG.md
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Fixes #17511 and #17415
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`serialize` makes the contract that if it is given a class name, it will
never return something other than an instance of that class. This means
that it must cast `nil` to the empty form of that object. As such, we
should then persist empty forms of that object as `nil`. While this is
techincally under the contract of
```
model.attribute = value
assert_equal model.attribute, model.tap(&:save).reload.attribute
```
which we can't actually test universally without property based testing,
it has come up more than once and is worth calling out specifically
since we aren't looking to change it.
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If the subtype provides custom schema dumping behavior, we need to defer
to it. We purposely choose not to handle any values other than an array
(which technically should only ever be `nil`, but I'd rather code
defensively here).
Fixes #20515.
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Fix crash when loading fixture with belongs_to association defined in abstract base class
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abstract base class.
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This introduces a deprecation cycle to change the behavior of the
default point type in the PostgreSQL adapter. The old behavior will
continue to be available for the immediate future as `:legacy_point`.
The current behavior of returning an `Array` causes several problems,
the most significant of which is that we cannot differentiate between an
array of points, and a point itself in the case of a column with the
`point[]` type.
The attributes API gives us a reasonable way to have a proper
deprecation cycle for this change, so let's take advantage of it. If we
like this change, we can also add proper support for the other geometric
types (line, lseg, box, path, polygon, and circle), all of which are
just aliases for string today.
Fixes #20441
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It was not being applied to creates and updates attempted through the
non-bang save methods. This means that, for example, creation of
records for singular associations through the `create_*` methods was
not appropriately ignored in .suppress blocks.
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Allow Enumerable#pluck to take a splat.
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This allows easier integration with ActiveRecord, such that
AR#pluck will now use Enumerable#pluck if the relation is loaded,
without needing to hit the database.
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since NUMBER(8) is not enough to store the maximum number of bigint.
Oracle NUMBER(p,0) as handled as integer
because there is no dedicated integer sql data type exist in Oracle database.
Also NUMBER(p,s) precision can take up to 38. p means the number of digits, not the byte length.
bigint type needs 19 digits as follows.
$ irb
2.2.2 :001 > limit = 8
=> 8
2.2.2 :002 > maxvalue_of_bigint = 1 << ( limit * 8 - 1)
=> 9223372036854775808
2.2.2 :003 > puts maxvalue_of_bigint.to_s.length
19
=> nil
2.2.2 :004 >
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Our general contract in Active Record is that strings are assumed to be
SQL literals, and symbols are assumed to reference a column. If a from
clause is given, we shouldn't include the table name, but we should
still quote the value as if it were a column.
Upon fixing this, the tests were still failing on SQLite. This was
because the column name being returned by the query was `"\"join\""`
instead of `"join"`. This is actually a bug in SQLite that was fixed a
long time ago, but I was using the version of SQLite included by OS X
which has this bug. Since I'm guessing this will be a common case for
contributors, I also added an explicit check with a more helpful error
message.
Fixes #20360
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This is a usability change to fix a quirk from our definition of partial
writes. By default, we only persist changed attributes. When creating a
new record, this is assumed that the default values came from the
database. However, if the user provided a default, it will not be
persisted, since we didn't see it as "changed". Since this is a very
specific case, I wanted to isolate it with the other quirks that come
from user provided default values. The number of edge cases which are
presenting themselves are starting to make me wonder if we should just
remove the ability to assign a default, in favor of overriding
`initialize`. For the time being, this is required for the attributes
API to not have confusing behavior.
We had to delete one test, since this actually changes the meaning of
`.changed?` on Active Record models. It now specifically means
`changed_from_database?`. While I think this will make the attributes
API more ergonomic to use, it is a subtle change in definition (though
not a backwards incompatible one). We should probably figure out the
right place to document this. (Feel free to open a PR doing that if
you're reading this).
/cc @rafaelfranca @kirs @senny
This is an alternate implementation of #19921.
Close #19921.
[Sean Griffin & Kir Shatrov]
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This is a variant implementation of the changes proposed in #19914.
Unlike that PR, the change in behavior is isolated in its own class.
This is to prevent wonky behavior if a Proc is assigned outside of the
default, and it is a natural place to place the behavior required by #19921
as well.
Close #19914.
[Sean Griffin & Kir Shatrov]
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Properly append preload / includes args on Merger
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Couldn't find other way to get the association name from a given class
other than looping through `reflect_on_all_associations` reflections ..
Noticed this one while looking at this example:
```ruby
class Product < ActiveRecord::Base
has_many :variants
has_many :translations
end
class Translation < ActiveRecord::Base
belongs_to :product
end
class Variant < ActiveRecord::Base
belongs_to :product
end
class BugTest < Minitest::Test
def test_merge_stuff
product = Product.create! name: 'huhu'
variant = Variant.create! product_id: product.id
Translation.create! locale: 'en', product_id: product.id
product_relation = Product.all
.preload(:translations)
.joins(:translations)
.merge(Translation.where(locale: 'en'))
.where(name: 'huhu')
assert_equal variant, Variant.joins(:product).merge(product_relation).first
end
end
```
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SQLite3: Add collation support for string and text columns
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Allow the use of symbols or strings to specify enum values in test fixtures
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Currently, values for columns backing Active Record enums must be
specified as integers in test fixtures:
awdr:
title: "Agile Web Development with Rails"
status: 2
rfr:
title: "Ruby for Rails"
status: <%= Book.statuses[:proposed] %>
This is potentially confusing, since enum values are typically
specified as symbols or strings in application code. To resolve the
confusion, this change permits the use of symbols or strings to specify
enum values:
awdr:
status: :published
It is compatible with fixtures that specify enum values as integers.
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Cause ActiveRecord::Base::reload to also ignore the QueryCache.
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If specify `strict: :default` explicitly, do not set sql_mode.
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Related with #17370.
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Changed mysqldump to include sprocs and functions
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Was left in adfab2dcf4003ca564d78d4425566dd2d9cd8b4f
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See #9683 for the reasons we switched to `distinct`.
Here is the discussion that triggered the actual deprecation #20198.
`uniq`, `uniq!` and `uniq_value` are still around.
They will be removed in the next minor release after Rails 5.
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Add schema cache to new connection pool after fork
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Active Record detects when the process has forked and automatically
creates a new connection pool to avoid sharing file descriptors.
If the existing connection pool had a schema cache associated with it,
the new pool should copy it to avoid unnecessarily querying the database
for its schema.
The code to detect that the process has forked is in ConnectionHandler,
but the existing test for it was in the ConnectionManagement test file.
I moved it to the right place while I was writing the new test for this
change.
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Fix `serial?` with quoted sequence name
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We must account for receiving one less call to #new_connection, but the
test otherwise remains valid.
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Renamed `@reserved_connections` -> `@thread_cached_conns`. New name
clearly conveys the purpose of the cache, which is to speed-up
`#connection` method.
The new `@thread_cached_conns` now also uses `Thread` objects as keys
(instead of previously `Thread.current.object_id`).
Since there is no longer any synchronization around
`@thread_cached_conns`, `disconnect!` and `clear_reloadable_connections!`
methods now pre-emptively obtain ownership (via `checkout`) of all
existing connections, before modifying internal data structures.
A private method `release` has been renamed `thread_conn_uncache` to
clear-up its purpose.
Fixed some brittle `thread.status == "sleep"` tests (threads can go
into sleep even without locks).
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Move post checkout connection verification out of mutex.synchronize.
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remove redundant parenthesis
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This can resolve confusing situation when a top level constant exists
but a namespaced version is identified.
Related to #19531.
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https://github.com/agrobbin/rails into agrobbin-sti-subclass-from-attributes
Conflicts:
activerecord/CHANGELOG.md
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