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# frozen_string_literal: true
module Gitlab
module Graphql
module Loaders
class LazyRelationLoader
# Proxies all the method calls to Registry instance.
# The main purpose of having this is that calling load
# on an instance of this class will only return the records
# associated with the main Active Record model.
class RelationProxy
def initialize(object, registry)
@object = object
@registry = registry
end
def load
registry.for(object)
end
alias_method :to_a, :load
def last(limit = 1)
result = registry.limit(limit)
.reverse_order!
.for(object)
return result.first if limit == 1 # This is the Active Record behavior
result
end
private
attr_reader :registry, :object
# Delegate everything to registry
def method_missing(method_name, ...)
result = registry.public_send(method_name, ...) # rubocop:disable GitlabSecurity/PublicSend
return self if result == registry
result
end
def respond_to_missing?(method_name, include_private = false)
registry.respond_to?(method_name, include_private)
end
end
end
end
end
end
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