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Contents
# frozen_string_literal: true
module HoneyFormat
# Default row builder
class Row < Struct
# Create a row
# @return [Row] returns an instantiated Row
# @example
# row_klass = Row.new(:id, :username)
# row = row_klass.call('1', 'buren')
# # => #<struct id="1", username="buren">
def self.call(row)
new(*row)
end
# Represent row as CSV
# @param columns [Array<Symbol>, Set<Symbol>, NilClass]
# the columns to output, nil means all columns (default: nil)
# @return [String] CSV-string representation.
def to_csv(columns: nil)
attributes = members
attributes = columns & attributes if columns
row = attributes.map! { |column| to_csv_value(column) }
::CSV.generate_line(row)
end
# Describe the contents of this row in a string.
# @return [String] content of this row
def inspect
attributes = members.map do |field|
value = self[field]
value = "\"#{value}\"" if value.is_a?(String)
[field, value].join('=')
end.join(', ')
"#<Row #{attributes}>"
end
alias_method :to_s, :inspect
private
# Returns the column in CSV format
# @param [Symbol] column name
# @return [String] column value as CSV string
def to_csv_value(column)
value = public_send(column)
return if value.nil?
return value.to_csv if value.respond_to?(:to_csv)
value.to_s
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems