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When same association is loaded in the model creation callback
The new object is inserted into association twice
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initialize_attributes
If argument of `build_record` has key and value which is same as
default value of database, we should also except the key from
`create_scope` in `initialize_attributes`.
Because at first `build_record` initialize record object with argument
of `build_record`, then assign attributes derived from Association's scope.
In this case `record.changed` does not include the key, which value is
same as default value of database, so we should add the key to except list.
Fix #21893.
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Alias left_joins to left_outer_joins
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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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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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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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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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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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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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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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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 is a separate commit, as it is not just a changelog conflict. Want
to point out the changes in the code
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use only object_id instead parent class and parent id
test cases
assert_equal
use table name in references
fix minor problems
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With `unscope!` called last, it undoes `where` constraints of the same
value when the `where` is chained after the `unscope`. This is what a
`rewhere` does. This is undesirable behavior.
The included tests demonstrate both the `unscope(...).where(...)`
behavior as well as the direct use of `rewhere(...)`.
This is in reference to #21955.
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`inverse_of` on through associations was accidently removed/caused to
stop working in commit f8d2899 which was part of a refactoring on
`ThroughReflection`.
To fix we moved `inverse_of` and `check_validity_of_inverse!` to the
`AbstractReflection` so it's available to the `ThroughReflection`
without having to dup any methods. We then need to delegate `inverse_name`
method in `ThroughReflection`. `inverse_name` can't be moved to
`AbstractReflection` without moving methods that set the instance
variable `@automatic_inverse_of`.
This adds a test that ensures that `inverse_of` on a `ThroughReflection`
returns the correct class name, and the correct record for the inverse
relationship.
Fixes #21692
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ActiveRecord: use association's `unscope` when preloading
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When I originally reviewed the #20317, I believe these changes were
present, but it appears that it was later updated so that they were
removed. Since Travis hadn't re-run the build, this slipped through.
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`restrict_with_error` message will now respect owner’s human name
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locale [kuboon & Ronak Jangir]
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Current implementation has a lot of utility methods that accept
reflection call a lot of methods on it and exit.
E.g. has_counter_cache?(reflection)
It causes confusion and inability to cache result of the method even
through it always returns the same result for the same reflection
object.
It can be done easier without access to the association context
by moving code into reflection itself.
e.g. reflection.has_counter_cache?
Reflection is less complex object than association so moving code there
automatically makes it simplier to understand.
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Since after 87d1aba3c `dependent: :destroy` callbacks on has_one
assocations run *after* destroy, it is possible that a nullification is
attempted on an already destroyed target:
class Car < ActiveRecord::Base
has_one :engine, dependent: :nullify
end
class Engine < ActiveRecord::Base
belongs_to :car, dependent: :destroy
end
> car = Car.create!
> engine = Engine.create!(car: car)
> engine.destroy! # => ActiveRecord::ActiveRecordError: cannot update a
> destroyed record
In the above case, `engine.destroy!` deletes `engine` and *then* triggers the
deletion of `car`, which in turn triggers a nullification of `engine.car_id`.
However, `engine` is already destroyed at that point.
Fixes #21223.
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Correct error message in Standard American english and add a test cas…
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Require explicit counter_cache option for has_many
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Assert that counter_cache behaviour is not used on belongs_to or
has_many associations if the option is not given explicitly.
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As described in the "Follow Coding Conventions" section in our
contribution guide (http://edgeguides.rubyonrails.org/contributing_to_ruby_on_rails.html#follow-the-coding-conventions)
we favor `assert_not` over `refute`.
While we don't usually make stylistic changes on it's own I opted to do
it in this case. The reason being that test cases are usually copied as
a starting point for new tests. This results in a spread of `refute` in
files that have been using it already.
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If the through class has default scopes we should skip the statement
cache.
Closes #20745.
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Fixes #21082
remove extra space
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Fix misleading errors for has_one through relations
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Deep down in the association internals, we're calling `destroy!` rather
than `destroy` when handling things like `dependent` or autosave
association callbacks. Unfortunately, due to the structure of the code
(e.g. it uses callbacks for everything), it's nearly impossible to pass
whether to call `destroy` or `destroy!` down to where we actually need
it.
As such, we have to do some legwork to handle this. Since the callbacks
are what actually raise the exception, we need to rescue it in
`ActiveRecord::Callbacks`, rather than `ActiveRecord::Persistence` where
it matters. (As an aside, if this code wasn't so callback heavy, it
would handling this would likely be as simple as changing `destroy` to
call `destroy!` instead of the other way around).
Since we don't want to lose the exception when `destroy!` is called (in
particular, we don't want the value of the `record` field to change to
the parent class), we have to do some additional legwork to hold onto it
where we can use it.
Again, all of this is ugly and there is definitely a better way to do
this. However, barring a much more significant re-architecting for what
I consider to be a reletively minor improvement, I'm willing to take
this small hit to the flow of this code (begrudgingly).
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Previously `has_one` and `has_many` associations were using the
`one` and `many` keys respectively. Both of these keys have special
meaning in I18n (they are considered to be pluralizations) so by
renaming them to `has_one` and `has_many` we make the messages more
explicit and most importantly they don't clash with linguistical
systems that need to validate translation keys (and their
pluralizations).
The `:'restrict_dependent_destroy.one'` key should be replaced with
`:'restrict_dependent_destroy.has_one'`, and
`:'restrict_dependent_destroy.many'` with
`:'restrict_dependent_destroy.has_many'`.
[Roque Pinel & Christopher Dell]
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We deprecate the support for passing an argument to force reload in
6eae366d0d2e5d5211eeaf955f56bd1dc6836758. That led to several
deprecation warning when running Active Record test suite.
This commit silence the warnings by properly calling `#reload` on the
association proxy or on the association object instead. However, there
are several places that `ActiveSupport::Deprecation.silence` are used as
those tests actually tests the force reload functionality and will be
removed once `master` is targeted next minor release (5.1).
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This is to simplify the association API, as you can call `reload` on the
association proxy or the parent object to get the same result.
For collection association, you can call `#reload` on association proxy
to force a reload:
@user.posts.reload # Instead of @user.posts(true)
For singular association, you can call `#reload` on the parent object to
clear its association cache then call the association method:
@user.reload.profile # Instead of @user.profile(true)
Passing a truthy argument to force association to reload will be removed
in Rails 5.1.
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The changes introduced to through associations in c80487eb were quite
interesting. Changing `relation.merge!(scope)` to `relation =
relation.merge(scope)` should in theory never cause any changes in
behavior. The subtle breakage led to a surprising conclusion.
The old code wasn't doing anything! Since `merge!` calls
`instance_exec` when given a proc, and most scopes will look something
like `has_many :foos, -> { where(foo: :bar) }`, if we're not capturing
the return value, it's a no-op. However, removing the `merge` causes
`unscope` to break.
While we're merging in the rest of the chain elsewhere, we were never
merging in `unscope` values, causing a breakage on associations where a
default scope was being unscoped in an association scope (yuk!). This is
subtly related to #20722, since it appears we were previously relying on
this mutability.
Fixes #20721.
Fixes #20727.
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Fix `undefined method uncached` for polymorphic belongs_to #20426
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Unitialized polymorphic `belongs_to` associations raise an error while
attempting to reload, as they attempt to make an uncached reload, but
don't have a klass to fetch uncachedly. In this case, `loaded?` should
be `false` anyway.
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thrown ActiveRecord::AssociationTypeMismatch when assigning a wrong value for a namespaced association
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