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Contents
module Elasticsearch
module Model
# Keeps a global registry of classes that include `Elasticsearch::Model`
#
class Registry
def initialize
@models = []
end
# Returns the unique instance of the registry (Singleton)
#
# @api private
#
def self.__instance
@instance ||= new
end
# Adds a model to the registry
#
def self.add(klass)
__instance.add(klass)
end
# Returns an Array of registered models
#
def self.all
__instance.models
end
# Adds a model to the registry
#
def add(klass)
@models << klass
end
# Returns a copy of the registered models
#
def models
@models.dup
end
end
# Wraps a collection of models when querying multiple indices
#
# @see Elasticsearch::Model.search
#
class Multimodel
attr_reader :models
# @param models [Class] The list of models across which the search will be performed
#
def initialize(*models)
@models = models.flatten
@models = Model::Registry.all if @models.empty?
end
# Get an Array of index names used for retrieving documents when doing a search across multiple models
#
# @return [Array] the list of index names used for retrieving documents
#
def index_name
models.map { |m| m.index_name }
end
# Get an Array of document types used for retrieving documents when doing a search across multiple models
#
# @return [Array] the list of document types used for retrieving documents
#
def document_type
models.map { |m| m.document_type }
end
# Get the client common for all models
#
# @return Elasticsearch::Transport::Client
#
def client
Elasticsearch::Model.client
end
end
end
end
Version data entries
14 entries across 14 versions & 1 rubygems