6.8 KiB
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Expose a way for applications to set a
primary_abstract_class
Multiple database applications that use a primary abstract class that is not named
ApplicationRecord
can now set a specific class to be theprimary_abstract_class
.class PrimaryApplicationRecord self.primary_abstract_class end
When an application boots it automatically connects to the primary or first database in the database configuration file. In a multiple database application that then call
connects_to
needs to know that the default connection is the same as theApplicationRecord
connection. However some applications have a differently namedApplicationRecord
. This prevents Active Record from opening duplicate connections to the same database.Eileen M. Uchitelle, John Crepezzi
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Support hash config for
structure_dump_flags
andstructure_load_flags
flags Now that Active Record supports multiple databases configuration we need a way to pass specific flags for dump/load databases since the options are not the same for different adapters. We can use in the original way:ActiveRecord::Tasks::DatabaseTasks.structure_dump_flags = ['--no-defaults', '--skip-add-drop-table'] #or ActiveRecord::Tasks::DatabaseTasks.structure_dump_flags = '--no-defaults --skip-add-drop-table'
And also use it passing a hash, with one or more keys, where the key is the adapter
ActiveRecord::Tasks::DatabaseTasks.structure_dump_flags = { mysql2: ['--no-defaults', '--skip-add-drop-table'], postgres: '--no-tablespaces' }
Gustavo Gonzalez
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Connection specification now passes the "url" key as a configuration for the adapter if the "url" protocol is "jdbc", "http", or "https". Previously only urls with the "jdbc" prefix were passed to the Active Record Adapter, others are assumed to be adapter specification urls.
Fixes #41137.
Jonathan Bracy
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Allow to opt-out of
strict_loading
mode on a per-record base.This is useful when strict loading is enabled application wide or on a model level.
class User < ApplicationRecord has_many :bookmarks has_many :articles, strict_loading: true end user = User.first user.articles # => ActiveRecord::StrictLoadingViolationError user.bookmarks # => #<ActiveRecord::Associations::CollectionProxy> user.strict_loading!(true) # => true user.bookmarks # => ActiveRecord::StrictLoadingViolationError user.strict_loading!(false) # => false user.bookmarks # => #<ActiveRecord::Associations::CollectionProxy> user.articles.strict_loading!(false) # => #<ActiveRecord::Associations::CollectionProxy>
Ayrton De Craene
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Add
FinderMethods#sole
and#find_sole_by
to find and assert the presence of exactly one record.Used when you need a single row, but also want to assert that there aren't multiple rows matching the condition; especially for when database constraints aren't enough or are impractical.
Product.where(["price = %?", price]).sole # => ActiveRecord::RecordNotFound (if no Product with given price) # => #<Product ...> (if one Product with given price) # => ActiveRecord::SoleRecordExceeded (if more than one Product with given price) user.api_keys.find_sole_by(key: key) # as above
Asherah Connor
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Makes
ActiveRecord::AttributeMethods::Query
respect the getter overrides defined in the model.Before:
class User def admin false # Overriding the getter to always return false end end user = User.first user.update(admin: true) user.admin # false (as expected, due to the getter overwrite) user.admin? # true (not expected, returned the DB column value)
After this commit,
user.admin?
above returns false, as expected.Fixes #40771.
Felipe
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Allow delegated_type to be specified primary_key and foreign_key.
Since delegated_type assumes that the foreign_key ends with
_id
,singular_id
defined by it does not work when the foreign_key does not end withid
. This change fixes it by taking into accountprimary_key
andforeign_key
in the options.Ryota Egusa
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Expose an
invert_where
method that will invert all scope conditions.class User scope :active, -> { where(accepted: true, locked: false) } end User.active # ... WHERE `accepted` = 1 AND `locked` = 0 User.active.invert_where # ... WHERE NOT (`accepted` = 1 AND `locked` = 0)
Kevin Deisz
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Restore possibility of passing
false
to :polymorphic option ofbelongs_to
.Previously, passing
false
would trigger the option validation logic to throw an error saying :polymorphic would not be a valid option.glaszig
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Remove deprecated
database
kwarg fromconnected_to
.Eileen M. Uchitelle, John Crepezzi
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Allow adding nonnamed expression indexes to be revertible.
Fixes #40732.
Previously, the following code would raise an error, when executed while rolling back, and the index name should be specified explicitly. Now, the index name is inferred automatically.
add_index(:items, "to_tsvector('english', description)")
fatkodima
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Only warn about negative enums if a positive form that would cause conflicts exists.
Fixes #39065.
Alex Ghiculescu
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Add option to run
default_scope
on all queries.Previously, a
default_scope
would only run on select or insert queries. In some cases, like non-Rails tenant sharding solutions, it may be desirable to rundefault_scope
on all queries in order to ensure queries are including a foreign key for the shard (ieblog_id
).Now applications can add an option to run on all queries including select, insert, delete, and update by adding an
all_queries
option to the default scope definition.class Article < ApplicationRecord default_scope -> { where(blog_id: Current.blog.id) }, all_queries: true end
Eileen M. Uchitelle
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Add
where.associated
to check for the presence of an association.# Before: account.users.joins(:contact).where.not(contact_id: nil) # After: account.users.where.associated(:contact)
Also mirrors
where.missing
.Kasper Timm Hansen
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Allow constructors (
build_association
andcreate_association
) onhas_one :through
associations.Santiago Perez Perret
Please check 6-1-stable for previous changes.