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module CsvRowModel # Include this to with {Model} to have a RowModel for importing csvs that # represents just one model. # It needs CsvRowModel::Import module Import module FileModel extend ActiveSupport::Concern class_methods do # Safe to override # # @param cell [String] the cell's string # @return [Integer] returns index of the header_match that cell match def index_header_match(cell) match = header_matchers.each_with_index.select do |matcher, index| cell.match(matcher) end.first match ? match[1] : nil end # @return [Array] header_matchs matchers for the row model def header_matchers @header_matchers ||= begin columns.map do |name, options| matchers = options[:header_matchs] || [name.to_s] Regexp.new(matchers.join('|'),Regexp::IGNORECASE) end end end def next(csv, context={}, previous=nil) return csv.read_row unless csv.next_row source_row = Array.new(header_matchers.size) while csv.next_row current_row = csv.read_row current_row.each_with_index do |cell, position| next if cell.blank? index = index_header_match(cell) next unless index source_row[index] = current_row[position + 1] break end end new(source_row, context: context, previous: previous) end end end end end
Version data entries
1 entries across 1 versions & 1 rubygems
Version | Path |
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csv_row_model-0.1.1 | lib/csv_row_model/import/file_model.rb |