简单问题，ruby script/generate scaffold 总是出错？

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D:\ROR\addressbook1>ruby script/generate scaffold contact admin
exists app/controllers/
exists app/helpers/
exists app/views/admin
exists app/views/layouts/
exists test/functional/
dependency model
exists app/models/
exists test/unit/
exists test/fixtures/
identical app/models/contact.rb
identical test/unit/contact_test.rb
identical test/fixtures/contacts.yml
wrong number of arguments (1 for 0)

结果总是

wrong number of arguments (1 for 0)

请问这是什么问题啊，我是新生，帮帮忙啊，
我的据库连接没有问题啊!

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蓝天星空 2012-07-22

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ruby script/generate scaffold -h
查看帮助即可

蓝天星空 2012-07-22

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你的rails 如果是2.0的话，命令和1.0的就不一样啦。
我的是版本问题造成的！
ruby script/generate scaffold product title:string description:string image_url:string price:float data_available:string

suro2000 2008-08-28

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去下载instantXX 在ruby的官方网站上，windows集成的环境，里面有1.7版本的。用这个做例子没问题。

Albert_2017 2008-08-19

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你的这种写法是rails 1.0里面的
在rails 2.0里面不是这样的．可以上网查一下

愤怒的小蒋 2008-06-23

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2.0以后就不能这么用了小伙子

cocolong2002 2008-05-25

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我遇到的是同样的问题，经过网络搜索，找到了答案。按以下解释现已解决。
Following the Rails 2.0 hype, I’ve been playing around with it and decided to share a first impression: Scaffolding is gone!

But wait, before you knock your head against the wall, let me tell you something: I lied

Scaffolding is not really gone. It’s just changed a bit.

How can I tell? Well, as a good developer I thought: “I’ll just create a scaffold with the new version and see what’s different”

I fired up a terminal, created a news rails application and generated a new model:

$ script/generate model Contact name:string email:string - yes you can do this in rails 2.0, and these fields get into your model’s migration!

Now the I have a new model, it’s time for a controller to manage it:

$ script/generate controller Contacts

So your controller would look something like this huh?

class ContactsController < ApplicationController
scaffold :contact
end

Well, too bad! The method scaffold is gone from ActionController::Base! And I’m not lying this time!

Now that the dynamic scaffold is gone, we’re left with the static one.
Ok, let’s try it then:

$ script/generate scaffold contact

And it won’t work again! At the end of the output, you will get something like this:

Another migration is already named create_contacts: db/migrate/001_create_contacts.rb

It really means that if your model is meant to be used by a scaffold, you better generate it in the same line. It will fail, afaik, if the model previously existed. Destroy yout model and controller, and execute the following:

$ script/generate scaffold Contact name:string email:string

Done! Just run your migrations, startup your server and your new scaffold in rails 2.0 will be working gracefully!

It took me a while to discover this changes because I didn’t find it well documented. But maybe I was not looking in the right places.

jianxm 2008-05-08

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在Rails2.0中，scaffold从核心中移出，转变成插件，使用时，我们需要在所在项目里用下面的命令下载:

ruby script/plugin install scaffolding

配置好数据库之后，像往常一样用

ruby script/generate scaffold yourmodel [field:attribute field:attribute field:attribute]

taito 2008-05-05

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================================================
在Rails2.0中 scaffold功能不能用原方法
wrong number of arguments (1 for 2)
================================================
这是因为rails的静态脚手架scaffold 用法与之前的不一样了
新的用法格式是：ruby script/generate scaffold ModelName [field:type, field:type]
举个例子，执行ruby script/generate scaffold product title:string description:text image_url:string，
*在Netbean 中，你不必在自己定义Controller Name