instance method `subquery_for`

Ruby on Rails 4.1.16

Since v4.0.13 Last seen in v5.2.8.1

Available in: v4.0.13 v4.1.16 v4.2.9 v5.2.8.1

Compare with:

subquery_for(key, select)

Returns a subquery for the given key using the join information.

Parameters

key req
select req

Source

# File activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb, line 347
        def subquery_for(key, select)
          subselect = select.clone
          subselect.projections = [key]
          subselect
        end

Defined in activerecord/lib/active_record/connection_adapters/abstract/database_statements.rb line 347 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ConnectionAdapters::DatabaseStatements

Signature

Parameters