Class: TypedPrint::Table

Inherits:
Object
  • Object
show all
Defined in:
lib/typed_print/table.rb

Instance Method Summary collapse

Constructor Details

#initialize(data, alignments = {}, only_columns = nil, custom_headers = {}, color: false, colors: nil) ⇒ Table

Returns a new instance of Table.



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# File 'lib/typed_print/table.rb', line 11

def initialize(data, alignments = {}, only_columns = nil, custom_headers = {}, color: false, colors: nil)
  @data = data
  @alignments = alignments
  @only_columns = only_columns&.map(&:to_sym)
  @custom_headers = custom_headers.transform_keys(&:to_sym)
  @color_auto = color
  @colors = colors&.transform_keys(&:to_sym)

  @headers = determine_headers
end

Instance Method Details

#render(format = :plain) ⇒ Object 



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# File 'lib/typed_print/table.rb', line 22

def render(format = :plain)
  if format == :markdown
    render_markdown
  else
    render_plain
  end
end

#render_markdown ⇒ Object 



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# File 'lib/typed_print/table.rb', line 75

def render_markdown
  return "" if @data.empty?

  rows_plain = @data.map { |row| @headers.map { |h| format_value(row[h]) } }
  header_strings_plain = @headers.map { |h| header_label(h) }

  column_widths = header_strings_plain.map(&:length)
  rows_plain.each do |row|
    row.each_with_index do |cell, i|
      column_widths[i] = [column_widths[i], cell.length].max
    end
  end

  if color_mode?
    header_color = @color_auto ? :cyan : nil
    header_strings_display = header_strings_plain.map { |h| colorize(h, header_color) }
    rows_display = @data.map { |row| @headers.map { |h| colorize_cell(h, row[h]) } }
  else
    header_strings_display = header_strings_plain
    rows_display = rows_plain
  end

  output = []
  output << "| " + header_strings_display.each_with_index.map { |h, i|
    pad_right(h, header_strings_plain[i], column_widths[i])
  }.join(" | ") + " |"
  output << "|" + column_widths.map { |w| "-" * (w + 2) }.join("|") + "|"
  rows_plain.each_with_index do |plain_row, ri|
    output << "| " + rows_display[ri].each_with_index.map { |cell, i|
      pad_right(cell, plain_row[i], column_widths[i])
    }.join(" | ") + " |"
  end

  output.join("\n")
end

#render_plain ⇒ Object 



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# File 'lib/typed_print/table.rb', line 43

def render_plain
  return "" if @data.empty?

  rows_plain = @data.map { |row| @headers.map { |h| format_value(row[h]) } }
  header_strings_plain = @headers.map { |h| header_label(h) }

  column_widths = header_strings_plain.map(&:length)
  rows_plain.each do |row|
    row.each_with_index do |cell, i|
      column_widths[i] = [column_widths[i], cell.length].max
    end
  end

  if color_mode?
    header_color = @color_auto ? :cyan : nil
    header_strings_display = header_strings_plain.map { |h| colorize(h, header_color) }
    rows_display = @data.map { |row| @headers.map { |h| colorize_cell(h, row[h]) } }
  else
    header_strings_display = header_strings_plain
    rows_display = rows_plain
  end

  output = []
  output << format_row(header_strings_display, column_widths, :center, header_strings_plain)
  output << separator(column_widths)
  rows_plain.each_with_index do |plain_row, ri|
    output << format_row(rows_display[ri], column_widths, nil, plain_row)
  end

  output.join("\n")
end

#to_csv(col_sep: ",") ⇒ Object 



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# File 'lib/typed_print/table.rb', line 30

def to_csv(col_sep: ",")
  require "csv"
  return "" if @data.empty?

  header_row = @headers.map { |h| header_label(h) }
  rows = @data.map { |row| @headers.map { |h| format_value(row[h]) } }

  CSV.generate(col_sep: col_sep) do |csv|
    csv << header_row
    rows.each { |row| csv << row }
  end
end