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module ActiveRecord
class PredicateBuilder
class AssociationQueryHandler # :nodoc:
def initialize(predicate_builder)
@predicate_builder = predicate_builder
end
def call(attribute, value)
queries = {}
if value.base_class
queries[value.association.foreign_type] = value.base_class.name
end
queries[value.association.foreign_key] = value.ids
predicate_builder.build_from_hash(queries)
end
protected
attr_reader :predicate_builder
end
class AssociationQueryValue # :nodoc:
attr_reader :association, :value
def initialize(association, value)
@association = association
@value = value
end
def ids
value
end
def base_class
if association.polymorphic?
@base_class ||= polymorphic_base_class_from_value
end
end
private
def polymorphic_base_class_from_value
case value
when Relation
value.klass.base_class
when Array
val = value.compact.first
val.class.base_class if val.is_a?(Base)
when Base
value.class.base_class
end
end
end
end
end
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