Contents

module Vedeu

  # A Row represents an array of Vedeu::Cell objects.
  #
  class Row

    include Enumerable

    # @!attribute [r] cells
    # @return [Array<NilClass|void>]
    attr_reader :cells

    # @param value [Vedeu::Row|Array<void>|void]
    # @return [Vedeu::Row]
    def self.coerce(value)
      if value.is_a?(self)
        value

      elsif value.is_a?(Array)
        new(value.compact)

      elsif value.nil?
        new

      else
        new([value])

      end
    end

    # Returns an instance of Vedeu::Row.
    #
    # @param cells [Array<NilClass|void>]
    # @return [Vedeu::Row]
    def initialize(cells = [])
      @cells = cells || []
    end

    # Provides iteration over the collection.
    #
    # @param block [Proc]
    # @return [Enumerator]
    def each(&block)
      cells.each(&block)
    end

    # An object is equal when its values are the same.
    #
    # @param other [Vedeu::Row]
    # @return [Boolean]
    def eql?(other)
      self.class == other.class && cells == other.cells
    end
    alias_method :==, :eql?

    # @param index [Fixnum]
    # @return [NilClass|void]
    def cell(index)
      return nil if index.nil?

      cells[index]
    end

  end # Row

end # Vedeu

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
vedeu-0.6.7	lib/vedeu/models/row.rb
vedeu-0.6.6	lib/vedeu/models/row.rb
vedeu-0.6.5	lib/vedeu/models/row.rb