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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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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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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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the newer method used for discriminating new records did not
use the older and more robust method used for instantiating
existing records, but did have a better post-check to ensure
the sublass was in the hierarchy. so move the descendants check
to find_sti_class, and then simply call find_sti_class from
subclass_from_attributes
now with fixed specs
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We should call `scope.order!` and set `scope.reordering_value` to `true` if :reordering values are specified
Fixes #21886
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This solves the following issue:
```
$ bin/test
Using sqlite3
/Users/senny/Projects/rails/activerecord/test/cases/adapters/mysql2/sp_test.rb:16:in `<class:Mysql2StoredProcedureTest>': undefined method `version' for #<ActiveRecord::ConnectionAdapters::SQLite3Adapter:0x007f8bab4b5b70> (NoMethodError)
from /Users/senny/Projects/rails/activerecord/test/cases/adapters/mysql2/sp_test.rb:5:in `<top (required)>'
from /Users/senny/Projects/rails/activesupport/lib/active_support/dependencies.rb:302:in `require'
from /Users/senny/Projects/rails/activesupport/lib/active_support/dependencies.rb:302:in `block in require'
from /Users/senny/Projects/rails/activesupport/lib/active_support/dependencies.rb:268:in `load_dependency'
from /Users/senny/Projects/rails/activesupport/lib/active_support/dependencies.rb:302:in `require'
from /Users/senny/Projects/rails/railties/lib/rails/test_unit/test_requirer.rb:11:in `block in require_files'
from /Users/senny/Projects/rails/railties/lib/rails/test_unit/test_requirer.rb:10:in `each'
from /Users/senny/Projects/rails/railties/lib/rails/test_unit/test_requirer.rb:10:in `require_files'
from /Users/senny/Projects/rails/railties/lib/rails/test_unit/minitest_plugin.rb:69:in `plugin_rails_init'
from /Users/senny/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.3.3/lib/minitest.rb:73:in `block in init_plugins'
from /Users/senny/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.3.3/lib/minitest.rb:71:in `each'
from /Users/senny/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.3.3/lib/minitest.rb:71:in `init_plugins'
from /Users/senny/.rbenv/versions/2.2.3/lib/ruby/gems/2.2.0/gems/minitest-5.3.3/lib/minitest.rb:122:in `run'
from bin/test:19:in `<main>'
```
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sebjacobs/support-bidirectional-destroy-dependencies
Add support for bidirectional destroy dependencies
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Prior to this commit if you defined a bidirectional relationship
between two models with destroy dependencies on both sides, a call to
`destroy` would result in an infinite callback loop.
Take the following relationship.
class Content < ActiveRecord::Base
has_one :content_position, dependent: :destroy
end
class ContentPosition < ActiveRecord::Base
belongs_to :content, dependent: :destroy
end
Calling `Content#destroy` or `ContentPosition#destroy` would result in
an infinite callback loop.
This commit changes the behaviour of `ActiveRecord::Callbacks#destroy`
so that it guards against subsequent callbacks.
Thanks to @zetter for demonstrating the issue with failing tests[1].
[1] rails#13609
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scambra/habtm-with-where-includes-16032-for-master
Includes HABTM returns correct size now
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only instantiates one HABTM object because the join table hasn't a primary key.
Updated commit from @bigxiang commit dbaa837
Fixes #16032.
Examples:
before:
Project.first.salaried_developers.size # => 3
Project.includes(:salaried_developers).first.salaried_developers.size # => 1
after:
Project.first.salaried_developers.size # => 3
Project.includes(:salaried_developers).first.salaried_developers.size # => 3
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This reverts commit 60c9701269f5b412849f1a507df61ba4735914d7, reversing
changes made to 6a25202d9ea3b4a7c9f2d6154b97cf8ba58403db.
Reason: Broken build
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This triggers the JoinDependency work to reflect on the associations
and trigger an error as follows:
ActiveRecord::ConfigurationError: Association named 'account' was
not found on Company; perhaps you misspelled it?
Fix Company.of_first_firm joins association name
Should be `Company.joins(:accounts)` not `Company.joins(:account)`.
Do the same for Client.of_first_firm
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Errors can be indexed with nested attributes
Close #8638
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`has_many` can now take `index_errors: true` as an
option. When this is enabled, errors for nested models will be
returned alongside an index, as opposed to just the nested model name.
This option can also be enabled (or disabled) globally through
`ActiveRecord::Base.index_nested_attribute_errors`
E.X.
```ruby
class Guitar < ActiveRecord::Base
has_many :tuning_pegs
accepts_nested_attributes_for :tuning_pegs
end
class TuningPeg < ActiveRecord::Base
belongs_to :guitar
validates_numericality_of :pitch
end
```
- Old style
- `guitar.errors["tuning_pegs.pitch"] = ["is not a number"]`
- New style (if defined globally, or set in has_many_relationship)
- `guitar.errors["tuning_pegs[1].pitch"] = ["is not a number"]`
[Michael Probber, Terence Sun]
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Explicitly exit with status "1" for create and drop failures
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* If the drop task fails for a reason other than the database not
existing, processing should end. This is indicated by a non-zero
exit status.
* Since the backtrace is already printed to screen, we forgo
printing it again by using an explicit call to `exit`.
* :warning: This modifies the behavior of the db:create task slightly in
that the stack trace is no longer printed by default. If the `--trace`
option is used, it will print the trace _after_ the error message.
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* If the create task fails for a reason other than the database already
existing, processing should end. This is indicated by a non-zero exit
status.
* Since the backtrace is already printed to screen, we forgo printing it
again by using an explicit call to `exit`.
* :warning: This modifies the behavior of the db:create task slightly in
that the stack trace is no longer printed by default. If the `--trace`
option is used, it will print the trace _after_ the error message.
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* Previously the sqlite3 adapter could not "fail" on drop. Now an error
is raised when no file exists.
* Also updates purge to be resilient of drop failures. This is how purge
is expected to behave.
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Do not omit parentheses [ci skip]
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Also move the method to the right class
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`#exec_stmt` is private method and only called in `#exec_query`. it
means `binds` is provided always. No need `binds.empty?` checking.
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Refactored association preloader for performance
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* less arrays created
* less complexity with only one level of nesting in loop
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rafaelsales/issues/21922-fix-ar-group-by-attribute-lookup
Fix generated projection fields in group by query
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* When tried to use `Company#accounts` test/models/company.rb I got:
```
ActiveRecord::StatementInvalid: SQLite3::SQLException: no such column:
accounts.company_id: SELECT COUNT(*) AS count_all, "companies"."firm_id"
AS companies_firm_id FROM "companies" INNER JOIN "accounts" ON
"accounts"."company_id" = "companies"."id" GROUP BY "companies"."firm_id"
```
* The refactor on Calculations class was just to simplify the code
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Closes #21922
Let `Book(id, author_id)`, `Photo(id, book_id, author_id)` and `Author(id)`
Running `Book.group(:author_id).joins(:photos).count` will produce:
* Rails 4.2 - conflicts `author_id` in both projection and group by:
```sql
SELECT COUNT(*) AS count_all, author_id AS author_id
FROM "books" INNER JOIN "photos" ON "photos"."book_id" = "books"."id"
GROUP BY author_id
```
* Master (9d02a25) - conflicts `author_id` only in projection:
```sql
SELECT COUNT(*) AS count_all, author_id AS author_id
FROM "books" INNER JOIN "photos" ON "photos"."book_id" = "books"."id"
GROUP BY "books"."author_id"
```
* With this fix:
```sql
SELECT COUNT(*) AS count_all, "books"."author_id" AS books_author_id
FROM "books" INNER JOIN "photos" ON "photos"."book_id" = "books"."id"
GROUP BY "books"."author_id"
```
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This issue was resolved by #21687 already. But re-add args by #18856.
`#tables` extra args was only using by `#table_exists?`. This is for
internal API. This commit will remove these extra args again.
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The getter is doing nothing more than returning the ivar, so it can be
extracted to an attr_reader.
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[ci skip]
It's been a source of confusion that the lower-level `add_column`
referenced the higher level `column` method for available options.
`column` supports additional functionality like `index: true` that is
not present on `add_column`.
This patch moves common option documentation to `add_column` and only
documents the additional options in `column`.
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