prawnto displaying tables that don't break when new page

Question

I have a variable number of tables with variable number of rows and I want to have them displaying one after the other but if a table doesn\'t fit on the current page put it on

Answer 1

4 years later... :)

As @m-x wrote it, rollback was disabled for security reason, like "group", and is still not implemented. So, here how I deal with break pages for tables :

Big and simple table (one row per data)

Just use header option

pdf.table @data,
  header: true, # You can use 'header: 2' if your header take two rows
  font_size: 12, 
  border_style: :grid,
  horizontal_padding: 10,
  vertical_padding: 3,
  border_width: 2,
  position: :left,
  row_colors: ["FFFFFF","DDDDDD"]

Small table or complexe table

• make table
• check if you need break page
• draw table

With your example :

t = pdf.make_table @data,
  font_size: 12, 
  border_style: :grid,
  horizontal_padding: 10,
  vertical_padding: 3,
  border_width: 2,
  position: :left,
  row_colors: ["FFFFFF","DDDDDD"]

if cursor - t.height < 0
  start_new_page
end

t.draw

Hope that helps