我需要在文件.yml中将字符串拆分为两行或三行。问题是，如果我尝试将最后一个字段描述分成两行，则会触发错误，因此我将其保留为一行
one:
id: 1
bus_company_id: 2
seat_type_id: 1
description: Butacas 120º de inclinación,
calefacción y aire acondicionado, música funcional y video.
two:
id: 2
bus_company_id: 2
seat_type_id: 2
description: Butacas de cuero y paño 120º de reclinación, bandeja de apoyo
para pies, calefacción y aire acondicionado, música funcional y video.
three:
id: 3
bus_company_id: 2
seat_type_id: 4
description: Butacas extra ancho de cuero y paño 150º de reclinación, bandeja de apoyo para pies,
desayuno, almohada y frazada, sistema de DVD y MP3.
four:
id: 4
bus_company_id: 2
seat_type_id: 5
description: Butacas de cuero 180º reclinación, bandeja de apoyo para pies de 180º de reclinación, cortina divisoria, almohada y frazadas sonido sourround, sistema de DVD y MP3, aire y calefacción, menú a elección de carne, pollo o verdura para su cena.
触发此错误。
fernando@fernando:~/ProyectoTicketMaster/TicketMaster$ rake db:seed
rake aborted!
ActiveRecord::Fixture::FormatError: a YAML error occurred parsing /home/fernando/ProyectoTicketMaster/TicketMaster/test/fixtures/bus_seat_types.yml. Please note that YAML must be consistently indented using spaces. Tabs are not allowed. Please have a look at http://www.yaml.org/faq.html
The exact error was:
Psych::SyntaxError: (<unknown>): could not find expected ':' while scanning a simple key at line 27 column 3
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures/file.rb:43:in `rows'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures/file.rb:29:in `each'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:670:in `block (2 levels) in read_fixture_files'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures/file.rb:20:in `open'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:669:in `block in read_fixture_files'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:668:in `each'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:668:in `read_fixture_files'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:548:in `initialize'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:482:in `new'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:482:in `block (2 levels) in create_fixtures'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:479:in `map'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:479:in `block in create_fixtures'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/connection_adapters/abstract_mysql_adapter.rb:232:in `disable_referential_integrity'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/fixtures.rb:476:in `create_fixtures'
/home/fernando/ProyectoTicketMaster/TicketMaster/db/seeds.rb:15:in `<top (required)>'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:245:in `load'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:245:in `block in load'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:236:in `load_dependency'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activesupport-3.2.19/lib/active_support/dependencies.rb:245:in `load'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/railties-3.2.19/lib/rails/engine.rb:525:in `load_seed'
/home/fernando/.rvm/gems/ruby-1.9.3-p547@ticket_master/gems/activerecord-3.2.19/lib/active_record/railties/databases.rake:347:in `block (2 levels) in <top (required)>'
Tasks: TOP => db:seed
(See full trace by running task with --trace)
fernando@fernando:~/ProyectoTicketMaster/TicketMaster$
我认为您想使用此处描述的换行符格式。看来您有两个选择，这是我使用“>”表示法汇总的一个简单示例。
parse.rb文件在这里：
require 'yaml'
foo = YAML.load_file('foo.yaml')
puts foo
这是YAML文件的内容：
one_line: one line of text
two_lines:
>
this is a couple lines of text
here we go...
final_line: final line of content
当您通过命令行使用来运行此命令时ruby parse.rb，您将获得以下输出：
{"one_line"=>"one line of text", "two_lines"=>"this is a couple lines of text here we go...\n", "final_line"=>"final line of content"}
希望这是有道理的。我认为您只需要添加“>”并将文本移到下一行。
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我来说两句