class Spread2RDF::Schema::Column
Attributes
coord[R]
Public Class Methods
normalize_attributes(values)
click to toggle source
# File lib/spread2rdf/schema/column.rb, line 13 def self.normalize_attributes(values) if object = values[:object] case when object.is_a?(Proc) then # nothing when !(from = object.delete(:from_worksheet) || object.delete(:from_sheet)).nil? object[:from] = { worksheet: from.to_sym } when !(from = object.delete(:from_data_source)).nil? object[:from] = { data_source: resolve_data_sources(from) } when !(from = object[:from]).nil? case from when Symbol then object[:from] = { worksheet: from } when String then object[:from] = { data_source: resolve_data_sources(from) } when Hash from[:data_source] = resolve_data_sources(from[:data_source]) if from.include?(:data_source) end end end values end
resolve_data_sources(data_sources)
click to toggle source
# File lib/spread2rdf/schema/column.rb, line 34 def self.resolve_data_sources(data_sources) data_sources = [data_sources] unless data_sources.is_a? Array data_sources.map do |data_source| case when (uri = data_source).is_a?(RDF::URI) || (uri = RDF::URI.new(data_source)).valid? raise NotImplementedError, "resolving of uris is not implemented yet" when data_source.is_a?(String) && !(file = File.in_path(data_source)).nil? RDF::Graph.load file else puts "WARNING: couldn't resolve data source #{data_source}" end end.compact end
Public Instance Methods
cell_mapping()
click to toggle source
# File lib/spread2rdf/schema/column.rb, line 72 def cell_mapping object if object.is_a?(Proc) end
object_mapping_mode()
click to toggle source
# File lib/spread2rdf/schema/column.rb, line 55 def object_mapping_mode case when object.nil? then :to_string when object.is_a?(Proc) then :custom when !object[:uri].nil? then :new_resource when !object[:from].nil? then :resource_ref when !object[:language].nil? then :to_string when !object[:datatype].nil? then :to_string else raise "mapping specification error: don't know how to map #{self}" end end
resource_creation_attributes()
click to toggle source
# File lib/spread2rdf/schema/column.rb, line 68 def resource_creation_attributes object end
to_s()
click to toggle source
# File lib/spread2rdf/schema/column.rb, line 51 def to_s "#{super} of #{sheet}" end