rails 3 undefined method `model_name' for ActiveRecord::Relation:Class.

by

at 2011-06-09 10:19:47

original http://hlee.iteye.com/blog/1073937

rails 3 form_for 的问题

undefined method `model_name' for ActiveRecord::Relation:Class.

def edit
   @office = Office.where("id = ? AND company_id = ?", params[:id], @company.id )
end

<%= simple_form_for @office, :url => settings_office_path, :html => { :class => "office_form" } do |f| %>
  <h1>Edit <%= @office.office_name %> Details</h1>
  <%= render :partial => 'form', :locals => { :f => f } %>
<% end %>

@office = Office.where(:company_id => @company.id).find(params[:id])


@office = @company.offices.find(params[:id])

class Event < ActiveRecord::Base
  belongs_to :user


  attr_accessible :event_name, :Starts_at, :finish, :tracks
end

class User < ActiveRecord::Base
  has_many :events, :dependent => :destroy


  attr_accessible :name, :event_attributes

  accepts_nested_attributes_for :events,  :allow_destroy => true

end

ActiveRecord::Schema.define(:version => 20101201180355) do


  create_table "events", :force => true do |t|

t.string   "event_name"
t.string   "tracks"
t.datetime "starts_at"
t.datetime "finish"
t.datetime "created_at"
t.datetime "updated_at"
t.integer  "user_id"


  end
end

@users = User.find(<conditions go here>)


要变成

@users = User.where(<conditions go here>).all

或者如下

@users = User.where(:admin => true).where('created_at > ?', min_date).order('created_at').limit(10).all

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