如何在虾中心表？

Question

I have created a table in prawn and wanted to pass the :position option by whih is also documented in the manual but it throws off an Method_missing error. It seems like this parameter doesnt exist anymore. How can I center a table in prawn?

Answer 1

I ran into the same error. Installing from master on Github fixed the issue.

# Gemfile
gem 'prawn', git: 'https://github.com/prawnpdf/prawn.git'

Issue thread on Github

Answer 2

Hope this helps

pdf.table tablename,
    :border_width => 0,
    :font_size => 11,
    :position => :center

Answer 3

whether the PDF generation is from a declared class or within the controller you need to add the following line to your Gemfile

gem 'prawn-table', '~> 0.2.1'

At the time of writing that is the gem version, this will give you access to the table methods such as position

I used it in this example and it worked

def table_items(chart_data, doc)
  table = Prawn::Table.new(table_rows(chart_data), doc, {:header => true})
  table.row(0).font_style = :bold
  table.position = :center
  table.draw
end