Question

我收到以下代码的以下错误：undefined method 'rowspan=' for #<Prawn::Table::Cell::Text:0x9477540>

table [
    [{content: "<b>control</b>", rowspan: 2}, 
     {content: "time", colspan: 2}, 
     "order", 
     {content: "count", colspan: 6}]
  ], cell_style: {size: 10, inline_format: true}

我跟着虾手册，看不出我做错了什么。我正在使用虾0.12.0。

Answer 1

根据Prawn google小组的说法，colspan和rowspan直到稍后发布才被引入。 https://groups.google.com/forum/#!searchin/prawn-ruby/rowspan/prawn-ruby/G-QHFUZheMI/3a4pNnLur0EJ

从github更新到最新的master gem为我工作：

git clone https://github.com/prawnpdf/prawn.git

创建一个目录来测试手册示例运行bundle init以在该目录中创建Gemfile并添加此行

gem 'prawn', :path=>'/path/to/your/local/prawn/git/clone/dir'

从手册中创建span_example.rb文件，并将其设置为使用Bundler Gemfile，如下所示：

require 'rubygems'
require 'bundler/setup'
Bundler.require

pdf = Prawn::Document.generate('span_example.pdf') do

  table([
      ["A", {content: "2x1", colspan: 2}, "B"],
      [{content: "1x2", rowspan: 2}, "C", "D", "E"],
      [{content: "2x2", colspan: 2, :rowspan => 2}, "F"],
      ["G", "H"]
  ])

end

然后运行

bundle install
ruby span_example.rb
open span_example.pdf

中提琴！

rails prawn undefined方法rowspan

1 个答案: