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We've stopped using it internally, in favor of polymorphism. So should
you!
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Fixes #15705.
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member = Member.new(club: Club.new)
member.save!
Before:
member.current_membership.club_id # => nil
After:
member.current_membership.club_id # => club's id
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We have several mutable types on Active Record now. (Serialized, JSON,
HStore). We need to be able to detect if these have been modified in
place.
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morgoth/fix-automatic-maintaining-test-schema-for-sql-format
ActiveRecord::Migration.maintain_test_schema! doesn't work with structure.sql
Conflicts:
activerecord/CHANGELOG.md
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schema format.
Additionally:
* It changes `purge` task on `sqlite3` adapter to recreate database file, to
be consistent with other adapters.
* Adds `purge` step when loading from `schema.rb`
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The column name given by the adapter doesn't include the table
namespace, so going through the hashed version of the result set causes
overridden keys.
Fixes #15649
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The original patch that added this concept can be found
[here](https://web.archive.org/web/20090601022739/http://dev.rubyonrails.org/ticket/9767).
The current default behavior is to cache everything except serialized
columns, unless the user specified otherwise. If anyone were to specify
otherwise, many types would actually be completely broken. Still, the
method is left in place with a deprecation warning in case anyone is
actually still calling this method.
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This reverts commit dd3ea17191e316aeebddaa7b176f6cfeee7a6365 and add a
regression test.
Fixes #15418
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This is a follow up to #15556
@kuldeepaggarwal did submit this patch way back (#13624).
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[ci skip]
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Before this patch, using `ActiveRecord::Base.primary_key_prefix_type`
with `:table_name_with_underscore` would change the `SchemaMigration` model
to have a primary key. This resulted in broken queries for PG because it tried
to return the inserted PK (which does not exist).
Closes #15051.
Closes #15419.
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The migration numbers were normalized different ways. This left
the task output in an inconsistent state.
Closes #15538.
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Baseclass becomes! subclass
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Remove deprecated method ActiveRecord::Migrator.proper_table_name
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Fix regression on eager loading association based on SQL query rather than existing column.
Conflicts:
activerecord/CHANGELOG.md
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than existing column.
Fixes #15480.
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Return a null column when no column exists for an attribute
Conflicts:
activerecord/CHANGELOG.md
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implement ActiveRecord::Base#pretty_print
Conflicts:
activerecord/CHANGELOG.md
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This is an intermediate solution. It is related to the refactoring @sgrif
is making and will change in the future.
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Fixed #columns_for_distinct of postgresql adapter
Conflicts:
activerecord/CHANGELOG.md
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The solution presented in this patch is not efficient. We should replace it
in the near future. The following needs to be worked out:
* Is `@attributes` storing the Ruby or SQL representation?
* `cacheable_column?` is broken but `hstore` and `json` rely on that behavior
Refs #15369.
/cc @sgrif @rafaelfranca
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Remove AR Properties from the public API
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Making this part of the public API was premature, let's make it private
again while I continue to work on the surrounding code.
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After ad7b5efb55bcc2e0ccd3e7f22a81e984df8676d1, which changed how
has_an_belongs_to_many used to work, we start raising an error when
redefining the same has_an_belongs_to_many association. This commits fix
that regression.
[Fixes #14983]
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As a result of all of the refactoring that's been done, it's now
possible for us to define a public API to allow users to specify
behavior. This is an initial implementation so that I can work off of it
in smaller pieces for additional features/refactorings.
The current behavior will continue to stay the same, though I'd like to
refactor towards the automatic schema detection being built off of this
API, and add the ability to opt out of automatic schema detection.
Use cases:
- We can deprecate a lot of the edge cases around types, now that there
is an alternate path for users who wish to maintain the same behavior.
- I intend to refactor serialized columns to be built on top of this
API.
- Gem and library maintainers are able to interact with `ActiveRecord`
at a slightly lower level in a more stable way.
- Interesting ability to reverse the work flow of adding to the schema.
Model can become the single source of truth for the structure. We can
compare that to what the database says the schema is, diff them, and
generate a migration.
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Fix habtm reflection
Conflicts:
activerecord/CHANGELOG.md
activerecord/lib/active_record/counter_cache.rb
activerecord/lib/active_record/reflection.rb
activerecord/test/cases/reflection_test.rb
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* * *
This bug can be triggered when serializing record R (the instance) of type C
(the class), provided that the following conditions are met:
1. The name of one or more columns/attributes on C/R matches an existing private
method on C (e.g. those defined by `Kernel`, such as `format`).
2. The attribute methods have not yet been generated on C.
In this case, the matching private methods will be called by the serialization
code (with no arguments) and their return values will be serialized instead. If
the method requires one or more arguments, it will result in an `ArgumentError`.
This regression is introduced in d1316bb.
* * *
Attribute methods (e.g. `#name` and `#format`, assuming the class has columns
named `name` and `format` in its database table) are lazily defined. Instead of
defining them when a the class is defined (e.g. in the `inherited` hook on
`ActiveRecord::Base`), this operation is deferred until they are first accessed.
The reason behind this is that is defining those methods requires knowing what
columns are defined on the database table, which usually requires a round-trip
to the database. Deferring their definition until the last-possible moment helps
reducing unnessary work, especially in development mode where classes are
redefined and throw away between requests.
Typically, when an attribute is first accessed (e.g. `a_book.format`), it will
fire the `method_missing` hook on the class, which triggers the definition of
the attribute methods. This even works for methods like `format`, because
calling a private method with an explicit receiver will also trigger that hook.
Unfortunately, `read_attribute_for_serialization` is simply an alias to `send`,
which does not respect method visibility. As a result, when serializing a record
with those conflicting attributes, the `method_missing` is not fired, and as a
result the attribute methods are not defined one would expected.
Before d1316bb, this is negated by the fact that calling the `run_callbacks`
method will also trigger a call to `respond_to?`, which is another trigger point
for the class to define its attribute methods. Therefore, when Active Record
tries to run the `after_find` callbacks, it will also define all the attribute
methods thus masking the problem.
* * *
The proper fix for this problem is probably to restrict `read_attribute_for_serialization`
to call public methods only (i.e. alias `read_attribute_for_serialization` to
`public_send` instead of `send`). This however would be quite risky to change
in a patch release and would probably require a full deprecation cycle.
Another approach would be to override `read_attribute_for_serialization` inside
Active Record to force the definition of attribute methods:
def read_attribute_for_serialization(attribute)
self.class.define_attribute_methods
send(attribute)
end
Unfortunately, this is quite likely going to cause a performance degradation.
This patch therefore restores the behaviour from the 4-0-stable branch by
explicitly forcing the class to define its attribute methods in a similar spot
(when records are initialized). This should not cause any extra roundtrips to
the database because the `@columns` should already be cached on the class.
Fixes #15188.
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Fixed a problem where `sum` used with a `group` was not returning a Hash.
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with a grouping was not returning a Hash.
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Fix serialized field returning serialized data after update_column
Conflicts:
activerecord/CHANGELOG.md
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This reverts commit 9a1abedcdeecd9464668695d4f9c1d55a2fd9332, reversing
changes made to c72d6c91a7c0c2dc81cc857a1d6db496e84e0065.
Conflicts:
activerecord/CHANGELOG.md
activerecord/test/models/comment.rb
This change break integration with activerecord-deprecated_finders so
I'm reverting until we find a way to make it work with this gem.
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