Ruby rails - 表單無效

Question

要創建新用戶，我使用搜索視圖在ldap中查找用戶信息，並在新用戶創建表單中填充數據。然後提交該表單將在mysql中本地創建一個新用戶。所以新的用戶創建表單已經填充了，我可以創建值。但在提交表單後，頁面會返回消息，說明字段爲空。不知道爲什麼。在HTTP調試我看到那些價值被張貼到/用戶/新

Form is invalid 

User can't be blank 
Firstname can't be blank 
Lastname can't be blank 
Email can't be blank 
Role can't be blank 

控制器 -

class UsersController < ApplicationController 


    def new 
     @user = User.new 
     @result = User.FindActiveDirectory(params[:user_id]) 
    if @result.empty? 
     render action: 'find', message: "Could not find a user with the id #{params[:user_id]}" 
else 
    return @result 

    end 

    end 

def find 
end 


def display_result 

    @result = User.FindActiveDirectory(params[:user_id]) 
    if @result.empty? 
     render action: 'find', message: "Could not find a user with the id #{params[:user_id]}" 
    end 
return @result 
end 


    def create 

     @user = User.new(params[:user_id]) 
     if @user.save 
       redirect_to users_added_url, :notice => "Signed up!" 
     else 
       render "new" 
     end 
    end 

end 

用戶視圖中找到（find.html.erb） -

<h1>find User </h1> 
<p><%= notice %></p> 

<%= form_tag users_new_path do %> 
    <p> 
    <%= label_tag :Username %><br /> 
    <%= text_field_tag :user_id %> 
    </p> 
    <p class="button"><%= submit_tag " Search " %></p> 
<% end %> 

用戶查看創建新的（new.html.erb） -

<h1>Add user to access this system</h1> 

<% if @result %> 
<% @result.each do |key, values| %> 
<% if "#{key}" == "samaccountname" %> 
<% $username = values.to_s %> 
<% end %> 
<% if "#{key}" == "sn" %> 
<% $lastname = values.to_s %> 
<% end %> 
<% if "#{key}" == "givenname" %> 
<% $firstname = values.to_s %> 
<% end %> 
<% if "#{key}" == "mail" %> 
<% $email = values.to_s %> 
<% end %> 
<% end %> 
<% end %> 


<%= form_for @user do |f| %> 
    <% if @user.errors.any? %> 
    <div class="error_messages"> 
     <h2>Form is invalid</h2> 
     <ul> 
     <% for message in @user.errors.full_messages %> 
      <li><%= message %></li> 
     <% end %> 
     </ul> 
    </div> 
    <% end %> 
<p> 
    <%= f.label :NT_Username %><br /> 
    <%= f.text_field :user_id, :value => $username %> 
    </p> 
<p> 
    <%= f.label :Firstname %><br /> 
    <%= f.text_field :firstname, :value => $firstname %> 
    </p> 
<p> 
    <%= f.label :Lastname %><br /> 
    <%= f.text_field :lastname, :value => $lastname %> 
    </p> 
    <p> 
    <%= f.label :Email %><br /> 
    <%= f.text_field :email, :value => $email %> 
    </p> 
    <p> 
    <%= f.label :Role %><br /> 
    <%= f.collection_select :role, User::ROLES, :to_s, :to_s, :include_blank => false %> 
    </p> 
    <p class="button"><%= f.submit %></p> 
<% end %> 

請求 -

Started POST "/users" for 10.15.21.28 at 2012-04-07 00:00:17 -0400 
Processing by UsersController#create as HTML 
    Parameters: {"utf8"=>"â", "authenticity_token"=>"RDxvWXxVwoJArNN1s4Q8M8cDr5rzjP4wNF4gOnteGGY=", "user"=>{"user_id"=>"jkills000", "firstname"=>"James", "lastname"=>"Kills", "email"=>"jkills000@mysite.com", "role"=>"User"}, "commit"=>"Create User"} 

Answer 1

在你create你這樣做：

@user = User.new(params[:user_id]) 

這是不正確。它應該是：

@user = User.new(params[:user]) 

正如你可以在申請中看到，params[:user]包含了所有用戶的信息。 params[:user_id]不存在。