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Contents
module PgSearch
module Features
class DMetaphone
def initialize(query, options, columns, model, normalizer)
dmetaphone_normalizer = Normalizer.new(normalizer)
options = (options || {}).merge(:dictionary => 'simple')
@tsearch = TSearch.new(query, options, columns, model, dmetaphone_normalizer)
end
def conditions
tsearch.conditions
end
def rank
tsearch.rank
end
private
attr_reader :tsearch
# Decorates a normalizer with dmetaphone processing.
class Normalizer
def initialize(normalizer_to_wrap)
@normalizer_to_wrap = normalizer_to_wrap
end
def add_normalization(original_sql)
otherwise_normalized_sql = Arel.sql(
normalizer_to_wrap.add_normalization(original_sql)
)
Arel::Nodes::NamedFunction.new(
"pg_search_dmetaphone",
[otherwise_normalized_sql]
).to_sql
end
private
attr_reader :normalizer_to_wrap
end
end
end
end
Version data entries
27 entries across 27 versions & 1 rubygems