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Contents
module Endeca
module Transformer
# Requires existence of mappings accessor (Hash)
#
# ==== Examples
# # Standard map call that returns an Endeca::Map object
# map(:old_name => :new_name)
#
# # Allows to to create a map object to perform other functionality such
# # as transformations.
# map(:new_name)
def map(mapping = {})
mapping = {mapping => mapping} if Symbol === mapping
mapping = mapping.symbolize_keys
if mapping.length > 1
raise ArgumentError, "map only accepts one key=>value pair"
end
mapping.each do |key, transformed_key|
transformed_key = key unless transformed_key
return mappings[key] = Map.new(key, transformed_key)
end
end
# Use the mappings hash to replace domain level query query_options with
# their Endeca equivalent.
def transform_query_options(query_options)
# {"apartments" => true}
query = query_options.symbolize_keys
# {:apartments => true}
query.each do |key, _|
if mapping = mappings[key]
new_options = mapping.perform(query)
query.delete(key)
query.update(new_options)
end
end
query
end
end
end
Version data entries
25 entries across 25 versions & 2 rubygems