两个模型，user和profile。user我使用的restful_authentication插件，跟profile的关系是 user has_one profile
以下是我的代码：
user.rb (部分)
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代码:
class User < ActiveRecord::Base
has_one :profile, :dependent => :destroy
attr_accessible :login, :email, :password, :password_confirmation, :identity_url
endprofile.rb
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代码:
class Profile < ActiveRecord::Base
belongs_to :user
attr_accessible :name, :gender, :birthday, :place, :about_me
endprofiles_controller.rb
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代码:
class ProfilesController < ApplicationController
before_filter :login_required
def edit
@user = User.find(current_user)
@profile = @user.profile
end
def update
@user = User.find(current_user)
@profile = @user.profile
respond_to do |format|
if @profile.update_attributes(@user.profile.attributes)
# 如果我在这里使用这个if @profile.update_attributes(params[:profile])，在更新是，log会报错说是：undefined method `stringify_keys!'
flash[:notice] = 'Your profile was successfully updated.'
format.html { redirect_to user_url(@user) }
format.xml { head :ok }
else
format.html { render :action => "edit" }
format.xml { render :xml => @profile.errors, :status => :unprocessable_entity }
end
end
end
endview/profile/edit.html.erb
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代码:
<h2>Edit Your Profile</h2>
<%= error_messages_for :profile %>
<% form_for (:profile, :url => user_profile_path(@user), :html => {:method => :put}, :index => nil) do |f|%>
<p>
Name:
<%= f.text_field :name %>
</p>
<p>
Gender:
<%= f.text_field :gender %>
</p>
<p>
My Place:
<%= f.text_field :place %>
</p>
<p>
My Birthday:
<%= f.text_field :birthday %>
</p>
<p>
About Me
<%= f.text_area :about_me %>
</p>
<%= submit_tag 'Update' %>
<% end %>Routes.rb（部分）
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代码:
map.resources :users do |users|
users.resource :profile, :controller => 'profiles', :action => 'edit'
end如果更新的话，log中就会出现：
Processing ProfilesController#update (for 127.0.0.1 at 2008-07-10 01:47:40) [PUT]
Session ID: BAh7CToMY3NyZl9pZCIlMmJhMDA4M2ZiN2UzZmEwNmI1YjJmMDJjY2ZlZmJi
ZTk6DnJldHVybl90byINL3VzZXJzLzM6DHVzZXJfaWRpCCIKZmxhc2hJQzon
QWN0aW9uQ29udHJvbGxlcjo6Rmxhc2g6OkZsYXNoSGFzaHsABjoKQHVzZWR7
AA==--87898f4f7b44a513b3f7fde77a48958d3af47e53
Parameters: {"commit"=>"Update", "profile"=>[{"name"=>"Allen", "place"=>"Beijing hub", "about_me"=>"YES", "gender"=>"Male", "birthday"=>"1985-07-03"}], "authenticity_token"=>"d658afd6295d956e8c4c82cac3b48362a7c02370", "_method"=>"put", "action"=>"update", "controller"=>"profiles", "user_id"=>"3"}
User Columns (0.015332) SHOW FIELDS FROM `users`
User Load (0.003480) SELECT * FROM `users` WHERE (`users`.`id` = 3)
CACHE (0.000000) SELECT * FROM `users` WHERE (`users`.`id` = 3)
Profile Load (0.002561) SELECT * FROM `profiles` WHERE (`profiles`.user_id = 3) LIMIT 1
Profile Columns (0.010243) SHOW FIELDS FROM `profiles`
WARNING: Can't mass-assign these protected attributes: updated_at, id, user_id, created_at
SQL (0.001385) BEGIN
SQL (0.000661) COMMIT
Redirected to http://localhost:3000/users/3
Completed in 0.08706 (11 reqs/sec) | DB: 0.03366 (38%) | 302 Found [http://localhost/users/3/profile]
难道mass assignment不能由非主键来更新？
页面的结果是显示已经更新，但是并没有写入到数据库中。
我的rails版本是2.1.0
