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This reverts commit 3420a14590c0e6915d8b6c242887f74adb4120f9, reversing
changes made to afb66a5a598ce4ac74ad84b125a5abf046dcf5aa.
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This was caused by 6d0d83a33f59d9415685852cf77818c41e2e2700. While the
bug it's trying to fix is handled if the association is loaded in an
after_(create|save) callback, it doesn't handle any cases that load the
association before the persistence takes place (validation, or before_*
filters). Instead of caring about the timing of persistence, we can just
ensure that we're not double adding the record instead.
The test from that commit actually broke, but it was not because the bug
has been re-introduced. It was because `Bulb` in our test suite is doing
funky things that look like STI but isn't STI, so equality comparison
didn't happen as the loaded model was of a different class.
Fixes #26661.
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The current code base is not uniform. After some discussion,
we have chosen to go with double quotes by default.
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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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Before this commit, returning `false` in an ActiveRecord `before_` callback
such as `before_create` would halt the callback chain.
After this commit, the behavior is deprecated: will still work until
the next release of Rails but will also display a deprecation warning.
The preferred way to halt a callback chain is to explicitly `throw(:abort)`.
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Fixes #12812
Raise `ActiveRecord::RecordNotDestroyed` when a child marked with
`dependent: destroy` can't be destroyed.
The following code:
```ruby
class Post < ActiveRecord::Base
has_many :comments, dependent: :destroy
end
class Comment < ActiveRecord::Base
before_destroy do
return false
end
end
post = Post.create!(comments: [Comment.create!])
post.comments = [Comment.create!]
````
would result in a `post` with two `comments`.
With this commit, the same code would raise a `RecordNotDestroyed`
exception, keeping the `post` with the same `comment`.
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Method `delete_all` should not be invoking callbacks and this
feature was deprecated in Rails 4.0. This is being removed.
`delete_all` will continue to honor the `:dependent` option. However
if `:dependent` value is `:destroy` then the default deletion
strategy for that collection will be applied.
User can also force a deletion strategy by passing parameter to
`delete_all`. For example you can do `@post.comments.delete_all(:nullify)`
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Conflicts:
activerecord/test/models/bulb.rb
activerecord/test/schema/schema.rb
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It doesn't serve much purpose now that ActiveRecord::Base.all returns a
Relation.
The code is moved to active_record_deprecated_finders.
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Don't use this:
scope :red, where(color: 'red')
default_scope where(color: 'red')
Use this:
scope :red, -> { where(color: 'red') }
default_scope { where(color: 'red') }
The former has numerous issues. It is a common newbie gotcha to do
the following:
scope :recent, where(published_at: Time.now - 2.weeks)
Or a more subtle variant:
scope :recent, -> { where(published_at: Time.now - 2.weeks) }
scope :recent_red, recent.where(color: 'red')
Eager scopes are also very complex to implement within Active
Record, and there are still bugs. For example, the following does
not do what you expect:
scope :remove_conditions, except(:where)
where(...).remove_conditions # => still has conditions
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before_initialize callback of the record runs. Fixes #1842.
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The build_association method was added as an API for plugins
to hook into in 1398db0. This commit restores this API and the
ability to override class.new to return a subclass based on
a virtual attribute in the attributes hash.
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attributes when copying, rather than using the assignment method
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be assigned without mass-assignment protection when a record is built on the association.
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macro multiple times that will give deprecation warnings, and in 3.2 we will simply overwrite the default scope when you call the macro multiple times.
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favour of defining a 'default_scope' class method in the model. See the CHANGELOG for more details.
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this can affect validations/callbacks/etc inside the record itself [#6252 state:resolved]
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child should be respected.
author.posts.create should take into account default_scope
defined on post.
[#3939: state:resolved]
Signed-off-by: José Valim <jose.valim@gmail.com>
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