According to the doc of `AR::Base#to_param`( https://github.com/rails/rails/blob/04cda1848cb847c2bdad0bfc12160dc8d554 7775/activerecord/lib/active_record/integration.rb#L18 ), it returns `nil` if the record is not persisted.
`AR::Base#to_param` and `AR::Base#cache_key` is defined at active_record/integration.rb, so tests for those methods should be at integration_test.rb
Introduced in 09ac177.
When using symbol keys, ActiveRecord will now translate aliased attribute names to the actual column name used in the database: With the model class Topic alias_attribute :heading, :title end The call Topic.where(heading: 'The First Topic') should yield the same result as Topic.where(title: 'The First Topic') This also applies to ActiveRecord::Relation::Calculations calls such as `Model.sum(:aliased)` and `Model.pluck(:aliased)`. This will not work with SQL fragment strings like `Model.sum('DISTINCT aliased')`. Github #7839 *Godfrey Chan*
without this, it's not possible to use UUID primary keys without uuid-ossp installed and activated
Same rationale as previous revert. This reverts commit 887225e.
It is not in the contract that flags have to be singletons, the use of regular font indicates that. This reverts commit 80036f9.
This reverts commit ebf69ab. `in?` must not take multiple parameters because its behavior would be ambiguous: # Test if "B" is included in a list of names with `"B".in?(*names)`: names = ["BMorearty"] "B".in?(*names) # => true names = ["BMorearty","rubyduo"] "B".in?(*names) # => false Conflicts: activesupport/lib/active_support/core_ext/object/inclusion.rb activesupport/test/core_ext/object/inclusion_test.rb