instance method
construct_relation_for_exists
Ruby on Rails 5.1.7
Since v5.1.7 Private — implementation detail, not part of the public APISignature
construct_relation_for_exists(relation, conditions)No documentation comment.
Parameters
-
relationreq -
conditionsreq
Source
# File activerecord/lib/active_record/relation/finder_methods.rb, line 377
def construct_relation_for_exists(relation, conditions)
relation = relation.except(:select, :distinct, :order)._select!(ONE_AS_ONE).limit!(1)
case conditions
when Array, Hash
relation.where!(conditions) unless conditions.empty?
else
relation.where!(primary_key => conditions) unless conditions == :none
end
relation
end
Defined in activerecord/lib/active_record/relation/finder_methods.rb line 377
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Defined in ActiveRecord::FinderMethods