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Contents
module Neo4j::Aggregate
# Rules properties on one or more nodes.
# Can also be used to apply functions (e.g. sum/average) on a set of properties.
#
module PropsAggregateMixin
include Neo4j::NodeMixin
include Enumerable
has_list :groups, :counter => true #, :cascade_delete => :incoming
def init_node(*args)
@aggregate_id = args[0] unless args.empty?
end
def aggregate_size
@aggregator.execute if @aggregator
groups.size
end
def each
@aggregator.execute if @aggregator
groups.each {|sub_group| sub_group.each {|val| yield val}}
end
def aggregate(agg_id)
@aggregator = PropsAggregator.new(self, agg_id.to_s)
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems