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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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If your STI class looks like this:
```ruby
class Company < ActiveRecord::Base
self.store_full_sti_class = false
class GoodCo < Company
end
class BadCo < Company
end
end
```
The expectation (which is valid) is that the `type` in the database is saved as
`GoodCo` or `BadCo`. However, another expectation should be that setting `type`
to `GoodCo` would correctly instantiate the object as a `Company::GoodCo`. That
second expectation is what this should fix.
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db:structure dump and load
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The old `test_create_bang_returns_falsy_when_join_record_has_errors` had
a missleading name and was a duplicate of
`test_save_should_not_raise_exception_when_join_record_has_errors`.
Since it had an assertion on the return value I renamed it accordingly
and got rid of the duplicate test.
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Make sure that tests do not hardcode the default value.
For example `test_instantiation_doesnt_try_to_require_corresponding_file`
always restored the configuration to `true` regardless of what it's
original value was.
Extract a helper to make the global modification consistent across tests.
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Apply schema cache dump when creating connections
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The `db:schema:cache:dump` rake task dumps the database schema structure
to `db/schema_cache.dump`. If this file is present, the schema details
are loaded into the currently checked out connection by a railtie while
Rails is booting, to avoid having to query the database for its schema.
The schema cache dump is only applied to the initial connection used to
boot the application though; other connections from the same pool are
created with an empty schema cache, and still have to load the structure
of each table directly from the database.
With this change, a copy of the schema cache is associated with the
connection pool and applied to connections as they are created.
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Dump indexes in `create_table` instead of `add_index`
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If the adapter supports indexes in create table, generated SQL is
slightly more efficient.
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yuki24/change-record-not-saved-and-not-destroyed-to-include-error-msg
AR::RecordNotSaved & RecordNotDestroyed from save!/destroy! should include an error message
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When `AR::Base.save!` or `AR::Base.destroy!` is called and an exception
is raised, the exception doesn't have any error message or has a weird
message like `#<FailedBulb:0x0000000907b4b8>`. Give a better message so
we can easily understand why it's failing to save/destroy.
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Correctly dump `:options` on `create_table` for MySQL
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Example:
create_table :foos do |t|
t.string :string_en, collation: 'en_US.UTF-8'
t.text :text_ja, collation: 'ja_JP.UTF-8'
end
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