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Contents
# frozen_string_literal: true
module Valkyrie::Persistence::Solr::Queries
# Responsible for efficiently returning all objects in the solr repository as
# {Valkyrie::Resource}s
class FindAllQuery
attr_reader :connection, :resource_factory, :model
# @param [RSolr::Client] connection
# @param [ResourceFactory] resource_factory
# @param [Class] model
def initialize(connection:, resource_factory:, model: nil)
@connection = connection
@resource_factory = resource_factory
@model = model
end
# Iterate over each Solr Document and convert each Document into a Valkyrie Resource
# @return [Array<Valkyrie::Resource>]
def run
enum_for(:each)
end
# Queries for all Documents in the Solr index
# For each Document, it yields the Valkyrie Resource which was converted from it
# @yield [Valkyrie::Resource]
def each
docs = DefaultPaginator.new
while docs.has_next?
docs = connection.paginate(docs.next_page, docs.per_page, "select", params: { q: query })["response"]["docs"]
docs.each do |doc|
yield resource_factory.to_resource(object: doc)
end
end
end
# Generates the Solr query for retrieving all Documents in the index
# If a model is specified for the query, it is scoped to that Valkyrie resource type
# @return [String]
def query
if !model
"*:*"
else
"#{Valkyrie::Persistence::Solr::Queries::MODEL}:#{model}"
end
end
end
end
Version data entries
26 entries across 26 versions & 1 rubygems