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module ActiveFedora::Associations
##
# Finds the objects which associate with a given record and are contained
# within the given container. Uses #repository to find the objects.
class ContainedFinder
attr_reader :container, :repository, :proxy_class
delegate :contained_ids, to: :container
# @param [#contained_ids] container a container that records are stored
# under.
# @param [#translate_uri_to_id, #find] repository a repository to build
# objects from.
# @param [ActiveFedora::Base] proxy_class class that represents an
# ore:Proxy
def initialize(container:, repository:, proxy_class:)
@container = container
@repository = repository
@proxy_class = proxy_class
end
# @param [ActiveFedora::Base] record a record which you want to find the
# reference node for.
# @return [Array<ActiveFedora::Base>] This returns whatever type
# repository.find returns.
def find(record)
record.reload
repository.find(matching_ids(record))
end
private
def matching_ids(record)
IDComposite.new(proxy_ids(record) & contained_ids, repository.translate_uri_to_id)
end
def proxy_ids(record)
relation_subjects(record)
end
# This could be done with Prefer InboundReferences, but that is
# a slow fedora call
def relation_subjects(record)
query = ActiveFedora::SolrQueryBuilder.construct_query_for_rel(
[[:has_model, proxy_class.to_class_uri], [:proxyFor, record.id]]
)
ActiveFedora::SolrService.query(query, fl: 'id').map(&:rdf_uri)
end
end
end
Version data entries
29 entries across 29 versions & 1 rubygems