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Contents
# coding: utf-8
module Query
# A single qualifier.
#
class Qualifier
attr_reader :normalized_qualifier, :codes
#
#
# codes is an array.
#
def initialize normalized_qualifier, codes
@normalized_qualifier = normalized_qualifier
@codes = codes.map &:to_sym
end
# Will overwrite if the key is present in the hash.
#
def inject_into hash
codes.each do |code|
hash[code] = normalized_qualifier
end
end
end
# Collection class for qualifiers.
#
class Qualifiers
include Singleton
attr_reader :qualifiers, :normalization_mapping
delegate :<<, :to => :qualifiers
#
#
def initialize
@qualifiers = []
@normalization_mapping = {}
end
# TODO Spec.
#
def self.add name, qualifiers
instance << Qualifier.new(name, qualifiers)
end
# Uses the qualifiers to prepare (optimize) the qualifier handling.
#
def prepare
qualifiers.each do |qualifier|
qualifier.inject_into normalization_mapping
end
end
# Normalizes the given qualifier.
#
# Returns nil if it is not allowed, the normalized qualifier if it is.
#
# Note: Normalizes.
#
def normalize qualifier
return nil if qualifier.blank?
normalization_mapping[qualifier.to_sym]
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems