Rails 和 jQuery 产生 406 错误答案

【问题标题】：Rails and jQuery producing 406 errorRails 和 jQuery 产生 406 错误
【发布时间】：2010-01-28 19:23:20
【问题描述】：

使用 jQuery 提交表单时出现 406 Not Acceptable 错误。我已经尝试了在网上找到的常见修复：

jQuery.ajaxSetup({ 
  'beforeSend': function(xhr) {
    xhr.setRequestHeader("Accept", "text/javascript");
  }
})

这并没有解决问题。 request.format 输出文本/html。我整天都在绞尽脑汁试图解决这个问题。 Rails 2.3.4、jQuery 1.3.2 和 jQTouch。

这是我的 jquery 代码：

jQuery(function () {
  $("#search").submit(function (e) {
    var $form = $(this);
    return app.search($form);
  });
});

var app = {
  search:function ($form) {
    $.ajax({

      type:$form.attr("method"), url:$form.attr("action"),
      dataType:"script", data:$form.serialize(),
      complete:function (req) {
        if (req.status === 200 || req.status === 304) {
        } else {
          alert("There was an error searching. Try again.");
          console.log(this);
        }
      }
    });    
    return false;
  }
};

形式：

  %form{:action => "/search", :method => "post", :id => "search", "accept-charset" => "utf-8"}
    %div{:style =>"margin:0;padding:0;display:inline" }
      %input{:name => "_method", :type => "hidden", :value => "put"}
      %input{:name => "authenticity_token", :type => "hidden", :value => "#{form_authenticity_token}"}
    %ul.rounded
      %li
        %input{:name => 'query', :value => '', :type => 'text', :placeholder => "Search"}

控制器代码：

  def show
    query = params[:query]
    @results = Person.search(query)
    respond_to do |wants|
      wants.html { }
      wants.js 
    end   
  end

显示动作是被调用的动作。我已经验证过了，这是日志

Processing PeopleController#show (for 127.0.0.1 at 2010-01-28 14:12:19) [PUT]
  Parameters: {"authenticity_token"=>"y4kC2CZ1dnrV7LWEC2mRxv8mP499C+0HXbRVlDEuWDc=", "query"=>"purcell"}
  SQL (1.3ms)    SELECT trigger_name
 FROM all_triggers
 WHERE owner = 'PDSADMIN'
 AND trigger_name = 'PERSON_PKT'
 AND table_owner = 'PDSADMIN'
 AND table_name = 'PERSON'
 AND status = 'ENABLED'

  Person Columns (20.9ms)    select column_name as name, data_type as sql_type, data_default, nullable,
 decode(data_type, 'NUMBER', data_precision,
 'FLOAT', data_precision,
 'VARCHAR2', decode(char_used, 'C', char_length, data_length),
 'CHAR', decode(char_used, 'C', char_length, data_length),
 null) as limit,
 decode(data_type, 'NUMBER', data_scale, null) as scale
 from all_tab_columns
 where owner = 'PDSADMIN'
 and table_name = 'PERSON'
 order by column_id

  Person Load (3.7ms)   SELECT * FROM person WHERE (person.person_id IN (5554,55,5966,146)) 
Completed in 77ms (View: 20, DB: 26) | 406 Not Acceptable [http://localhost/search]

【问题讨论】：

标签： jquery ruby-on-rails ajax

【解决方案1】：

好的，我发现了我的问题。我正在使用用于rails的jqtouch插件，它会自动为开发模式下的请求分配一个:iphone格式，这强制了我没有的format.iphone。我用这段代码来覆盖它：

if request.xhr? && request.format == :iphone
  request.format = :js
end

【讨论】：

【解决方案2】：

正确的方法是编辑（或添加）config/initializers/mime_types.rb 以接受 :iphone 请求。

Mime::Type.register_alias "text/javascript", :iphone

【讨论】：