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Contents
require 'rbbt/entity'
module AssociationItem
extend Entity
annotation :knowledge_base
annotation :database
annotation :reverse
property :part => :array2single do
self.clean_annotations.collect{|p| p.partition("~") }
end
property :target => :array2single do
self.part.collect{|p| p[2]}
end
property :source => :array2single do
self.clean_annotations.collect{|p| p[/[^~]+/] }
end
property :target_entity => :array2single do
type = reverse ? knowledge_base.source(database) : knowledge_base.target(database)
knowledge_base.annotate self.target, type, database if self.target.any?
end
property :source_entity => :array2single do
type = reverse ? knowledge_base.target(database) : knowledge_base.source(database)
knowledge_base.annotate self.source, type if self.target.any?
end
property :value => :array2single do
value = knowledge_base.get_index(database).chunked_values_at self
value.collect{|v| NamedArray.setup(v, knowledge_base.get_index(database).fields)}
end
property :info => :array2single do
fields = knowledge_base.index_fields(database)
return [{}] * self.length if fields.nil? or fields.empty?
value.collect{|v|
Hash[*fields.zip(v).flatten]
}
end
def self.incidence(pairs)
matrix = {}
targets = []
sources = []
matches = {}
pairs.each do |p|
s, sep, t = p.partition "~"
sources << s
targets << t
matches[s] ||= Hash.new{false}
matches[s][t] = true
end
sources.uniq!
targets = targets.uniq.sort
matches.each do |s,hash|
matrix[s] = hash.values_at(*targets)
end
defined?(TSV)? TSV.setup(matrix, :fields => targets, :type => :list) : matrix
end
end
Version data entries
28 entries across 28 versions & 1 rubygems