Class: Equalshares::Pabulib::VoteRowParser

Inherits:
Object
  • Object
show all
Defined in:
lib/equalshares/pabulib/vote_row_parser.rb

Overview

Parses a single row of the VOTES section into the accumulator, turning the vote into approvals and (for scoring/cumulative/ordinal ballots) per-voter scores.

Instance Method Summary collapse

Constructor Details

#initialize(accumulator) ⇒ VoteRowParser

Returns a new instance of VoteRowParser.



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# File 'lib/equalshares/pabulib/vote_row_parser.rb', line 8

def initialize(accumulator)
  @acc = accumulator
  vote_type = accumulator.meta["vote_type"]
  @cardinal = CARDINAL_VOTE_TYPES.include?(vote_type)
  @ordinal = vote_type == "ordinal"
end

Instance Method Details

#parse(row, header, line_number) ⇒ Object

Raises:



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# File 'lib/equalshares/pabulib/vote_row_parser.rb', line 15

def parse(row, header, line_number)
  voter_id_idx = header.index("voter_id")
  vote_idx = header.index("vote")
  points_idx = header.index("points")

  require_columns!(voter_id_idx, vote_idx, line_number)
  validate_column_count!(row, header, line_number)

  voter_id = row[voter_id_idx].strip
  raise ParseError, "Line #{line_number}: Duplicate voter ID '#{voter_id}' found." if @acc.voter_ids_set[voter_id]

  record_vote(row, vote_idx, points_idx, voter_id, line_number)
  store_voter(row, header, voter_id)
end