设置联系表

Question

我正在设置联系表。但它不起作用。我收到了一条错误消息，如

SQLite3::ConstraintException: contacts.name may not be NULL: INSERT INTO "contacts" ("content", "created_at", "email", "name", "updated_at") VALUES (?, ?, ?, ?, ?) 

。

看起来这个错误来自于控制器设置，因为我在表单显示之前得到了这个错误信息。我的意思是我无法在static_pages/contact上看到任何表单。 你能给我一些建议吗？

☆static_pages_controller

def contact 
    @contact = Contact.new(params[:contact]) 
    if @contact.save 
    ContactMailer.sent(@contact).deliver 
    redirect_to :action => :contact, :notice => 'お問い合わせありがとうございました。' 
    else 
    render :action => :contact, :alert => 'お問い合わせに不備があります。' 
    end 
end 

☆contact.html.erb

<h1>お問い合わせフォーム</h1> 

<%= form_for(@contact) do |f| %> 
    <% if @contact.errors.any? %> 
    <div id="error_explanation"> 
     <h2><%= pluralize(@contact.errors.count, "error") %> prohibited this contact from being saved:</h2> 

     <ul> 
     <% @contact.errors.full_messages.each do |msg| %> 
     <li><%= msg %></li> 
     <% end %> 
     </ul> 
    </div> 
    <% end %> 

    <div class="field"> 
    <%= f.label :name %><br /> 
    <%= f.string_field :name %> 
    </div> 
    <div class="field"> 
    <%= f.label :email %><br /> 
    <%= f.string_field :email %> 
    </div> 
    <div class="field"> 
    <%= f.label :content %><br /> 
    <%= f.text_field :content %> 
    </div> 
    <div class="actions"> 
    <%= f.submit %> 
    </div> 
<% end %> 

☆routes.rb中

get "static_pages/contact" 
    post"static_pages/contact" 

☆contact.rb

class Contact < ActiveRecord::Base 
    attr_accessible :name, :email, :content 
end 

☆contact_mailer.rb

class ContactMailer < ActionMailer::Base 
    default from: "from@example.com" 

    def sent(contact) 
    @contact = contact 

    mail(:to => "xxxxxxxxx@gmail.com", :subject => 'TsundokuBuster発お問い合わせ') 
    end 
end 

Answer 1

问题是出在路线：

get "static_pages/contact" 
post "static_pages/contact" 

，当你访问联系人页面要调用POST请求，通常发送空值的名字蚂蚁其他属性。

我想删除post "static_pages/contact"行，并在创建操作时使表单保持在提交状态。

def contact 
    @contact = Contact.new 
end 

contacts_controller.rb

def create 
    @contact = Contact.new(params[:contact]) 
    if @contact.save 
    ContactMailer.sent(@contact).deliver 
    redirect_to :action => @contact, :notice => 'お問い合わせありがとうございました。' 
    else 
    render :action => 'new' :alert => 'お問い合わせに不備があります。' 
    end 
end 

插件添加到resources :contacts, :except => [:show]的routes.rb