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module Picky
module Query
# Describes the Combination of a Token (the text) and
# the index (the bundle): [text, index_bundle].
#
# An Allocation consists of an ordered number of Combinations.
#
class Combination
attr_reader :token,
:category
def initialize token, category
@token = token
@category = category
end
# Returns the category's name.
#
def category_name
@category_name ||= category.name
end
#
#
def bundle
category.bundle_for token
end
# Returns the weight of this combination.
#
# Note: Caching is most of the time useful.
#
def weight
@weight ||= category.weight(token)
end
# Returns an array of ids for the given text.
#
# Note: Caching is most of the time useful.
#
def ids
@ids ||= category.ids(token)
end
# The identifier for this combination.
#
def identifier
@identifier ||= "#{bundle.identifier}:inverted:#{token.text}"
end
# Note: Required for uniq!
#
# THINK Ok with category or is the bundle needed?
#
def hash
[token, category].hash
end
# Combines the category names with the original names.
# [
# [:title, 'Flarbl', :flarbl],
# [:category, 'Gnorf', :gnorf]
# ]
#
def to_result
[category_name, *token.to_result]
end
# Example:
# "exact title:Peter*:peter"
#
def to_s
"#{category.bundle_for(token).identifier}(#{to_result.join(':')})"
end
end
end
end
Version data entries
5 entries across 5 versions & 1 rubygems