Sha256: e1e63e1b0df2c183b4913809e126e539748a4f8b57ab2559ee53ef730892ed74
Contents?: true
Size: 1.9 KB
Versions: 138
Compression:
Stored size: 1.9 KB
Contents
module Eco
module Data
class Mapper
# it expects [[v1a, v1b], [v2a, v2b] ...]
def initialize (array_of_arrays = [], internal: :last)
@internal_order = internal
@source = array_of_arrays
if @source
# internal should be always last in @source
@source = @source.map { |a| a.reverse } unless internal == :last
# first declarations take priority
@by_external = @source.reverse.to_h
@by_internal = @source.reverse.map do |pair|
pair.reverse
end.to_h
end
end
def as_json(internal: @internal_order)
to_a(internal: internal)
end
def to_json(internal: @internal_order)
content = as_json(internal: internal).map do |pair|
" " + pair.to_json
end.join(",\n")
"[\n#{content}\n]"
end
def to_a(internal: @internal_order)
@by_internal.map do |int, ext|
internal == :last ? [ext, int] : [int, ext]
end
end
def +(array_of_arrays)
self.class.new(array_of_arrays + to_a, internal: @internal_order)
end
def list(type = :internal)
return [] if !@source
@source.map do |pair|
type == :internal ? pair.last : pair.first
end.uniq
end
def internal?(value)
return true if !@source
@by_internal.key?(value)
end
def external?(value)
return true if !@source
@by_external.key?(value)
end
def include?(value)
return true if !@source
internal?(value) || external?(value)
end
def to_internal(value)
return value if !@source
@by_external[value]
end
def to_external(value)
return value if !@source
@by_internal[value]
end
end
end
end
Version data entries
138 entries across 138 versions & 1 rubygems