Module: Subquery

Extended by:

ActiveSupport::Concern

Included in:

Project

Defined in:

app/models/concerns/subquery.rb

Overview

Distinguish between a top level query and a subselect.

Retrieve column values when the relation has already been loaded, otherwise reselect the relation. Useful for preload query patterns where the typical Rails #preload does not fit. Such as:

projects = Project.where(…) projects.load … options = ProjectMember.where(…).where(source_id: projects.select(:id))