我使用Rails scaffolding使用来自终端的命令来建立模型:
rails generate scaffold Venue venueid:string, venueName:string, venueAddress:string, venueCity:string, venueState:string, venueZip:integer, venuePhone:string, venueAge:int
一切似乎都可以安装或生成，但是，当我运行
rake db:migrate时，出现以下错误:rake aborted!
/Users/Banderson/Documents/demo/db/migrate/20130202222224_create_venues.rb:5: syntax error, unexpected '\n'
t.string, :venueName
^
org/jruby/RubyKernel.java:1062:in `require'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activesupport-3.2.10/lib/active_support/dependencies.rb:251:in `require'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activesupport-3.2.10/lib/active_support/dependencies.rb:236:in `load_dependency'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activesupport-3.2.10/lib/active_support/dependencies.rb:251:in `require'
/Users/Banderson/Documents/demo/db/migrate/20130202222224_create_venues.rb:537:in `load_migration'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:533:in `migration'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:528:in `migrate'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:720:in `migrate'
org/jruby/RubyProc.java:270:in `call'
org/jruby/RubyProc.java:220:in `call'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:775:in `ddl_transaction'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/transactions.rb:208:in `transaction'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:775:in `ddl_transaction'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:719:in `migrate'
org/jruby/RubyArray.java:1620:in `each'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:700:in `migrate'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:570:in `up'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/migration.rb:551:in `migrate'
/Users/Banderson/.rvm/gems/jruby-1.6.8/gems/activerecord-3.2.10/lib/active_record/railties/databases.rake:179:in `(root)'
org/jruby/RubyProc.java:270:in `call'
org/jruby/RubyProc.java:220:in `call'
org/jruby/RubyArray.java:1620:in `each'
org/jruby/RubyArray.java:1620:in `each'
org/jruby/RubyKernel.java:1087:in `load'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)
我在做什么错，或者我该如何解决？
最佳答案
尝试
rails generate scaffold Venue venueid:string venueName:string venueAddress:string venueCity:string venueState:string venueZip:integer venuePhone:string venueAge:int
反而。您不应该在每个字段之间使用逗号。
使用逗号，您将在其中生成迁移:
create_table :venues do |t|
t.string, :venueid
t.string, :venueName
t.string, :venueAddress
t.string, :venueCity
t.string, :venueState
t.integer, :venueZip
t.string, :venuePhone
t.int :venueAge
t.timestamps
end
如您所见，每个t.string/integer/etc。在给定任何参数之前，方法调用具有逗号，这是无效的。如果这样做:
puts, "hi"
我得到了错误
syntax error, unexpected '\n', expecting tCOLON2 or '[' or '.'
这与您遇到的错误类似。
tldr:不要在生成器中使用逗号
关于ruby-on-rails - rake db :migrate giving 'unexpected\n' error，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/14667183/