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Size: 1.91 KB
Versions: 2
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Contents
module Sequel module PrettyTable # Prints nice-looking plain-text tables # # +--+-------+ # |id|name | # |--+-------| # |1 |fasdfas| # |2 |test | # +--+-------+ def self.print(records, columns = nil) # records is an array of hashes columns ||= records_columns(records) sizes = column_sizes(records, columns) puts separator_line(columns, sizes) puts header_line(columns, sizes) puts separator_line(columns, sizes) records.each {|r| puts data_line(columns, sizes, r)} puts separator_line(columns, sizes) end end class << PrettyTable private def records_columns(records) columns = [] records.each do |r| if Array === r && (k = r.keys) return k elsif Hash === r r.keys.each {|k| columns << k unless columns.include?(k)} end end columns end def column_sizes(records, columns) sizes = Hash.new {0} columns.each do |c| s = c.to_s.size sizes[c.to_sym] = s if s > sizes[c.to_sym] end records.each do |r| columns.each do |c| s = r[c].to_s.size sizes[c.to_sym] = s if s > sizes[c.to_sym] end end sizes end def separator_line(columns, sizes) l = '' '+' + columns.map {|c| '-' * sizes[c]}.join('+') + '+' end def format_cell(size, v) case v when Bignum, Fixnum "%#{size}d" % v when Float "%#{size}g" % v else "%-#{size}s" % v.to_s end end def data_line(columns, sizes, record) '|' + columns.map {|c| format_cell(sizes[c], record[c])}.join('|') + '|' end def header_line(columns, sizes) '|' + columns.map {|c| "%-#{sizes[c]}s" % c.to_s}.join('|') + '|' end end end
Version data entries
2 entries across 2 versions & 1 rubygems
Version | Path |
---|---|
sequel_core-1.5.0 | lib/sequel_core/pretty_table.rb |
sequel_core-1.5.1 | lib/sequel_core/pretty_table.rb |