简单搜索在 Rails 中不起作用？

Question

我在此 railscast http://railscasts.com/episodes/37-simple-search-form?autoplay=true 之后为我的过程表设置了搜索机制。我几乎完全按照它，但是当我提交搜索时出现此错误：

ActiveRecord::RecordNotFound at /procedures

Couldn't find all Procedures with 'id': (all, {:conditions=>["name LIKE ?", "%Emergency%"]}) (found 0 results, but was looking for 2)

我想按名称搜索Procedures，这个错误让它看起来像是按id搜索？

这里是视图：

      <%= form_tag procedures_path, :method => 'get' do %>
      <p>
      <%= text_field_tag :search, params[:search], :id => "welcome-search" %>
      <%= submit_tag "Search Procedures", :name => nil, :class => "btn btn-success btn-lg" %>

我的控制器：

def index
  @procedures = Procedure.search(params[:search])
  render `procedures/index`
end

我的模特：

def self.search(search)
  if search
  find(:all, :conditions => ['name LIKE ?', "%#{search}%"])
else
  find(:all)
end
end

我很困惑，因为 railscast 让它看起来很容易开始工作..谢谢。

Answer 1

find(:all) 已经很老了，自 rails 3.2 起不再可用。而是使用where:

def self.search(search)
  if search
    where('name LIKE ?', "%#{search}%")
  else
    all
  end
end