Question

我想以HTML格式打印返回的JSON对象中的元素。 ruby代码是：

get '/get_template_info' do
    mandrill = Mandrill::API.new  
    name = "blah"
    result = mandrill.templates.info name
end

jQuery是：

$(document).ready(function(){
$( ".result" ).on( "click", "#edit_template", function() {
$.getJSON("/get_template_info?name=blah", function(data) {
  $.each( data, function( key, value ) {
         var template_txt = '<p>' + this["code"] + '</p>';
        $(".edit_div").append(template_txt);
                            });//end each
            });//end json
    });//end click
});//end doc

在firebug控制台中，这就是我得到的：

{"slug":"blah","name":"blah","code":"blah is the message\r\n\r\n<p>and blah is how it is</p>\r\n<p> I hope it gets better soon </p>","publish_code":"blah is the message\r\n\r\n<p>and blah is how it is</p>\r\n<p> I hope it gets better soon </p>","published_at":"2014-02-06 03:36:04","created_at":"2014-02-05 09:08:06.73429","updated_at":"2014-02-06 03:36:04.28132","publish_name":"blah","labels":["mylabel"],"text":"example text","publish_text":"example text","subject":"this is a subect","publish_subject":"this is a subect","from_email":"rich@pchme.com","publish_from_email":"rich@pchme.com","from_name":"Rich","publish_from_name":"Rich"}

但jQuery片段此[[code]]在edit_div中打印为“undefined”！

这家伙有什么不对？所有帮助赞赏。谢谢。

Answer 1

在您提供给$.each的回调中，您的代码似乎希望this与data相同，但实际上它与value相同。所以，如果你做这个：

$(document).ready(function(){
  $( ".result" ).on( "click", "#edit_template", function() {
    $.getJSON("/get_template_info?name=blah", function(data) {
      $.each( data, function( key, value ) {
        console.log(key + ":" + value);
      });
    });
  });
});

你会得到：

slug:blah VM770:2
name:blah VM770:2
code:blah is the message

<p>and blah is how it is</p>
<p> I hope it gets better soon </p> VM770:2
publish_code:blah is the message

<p>and blah is how it is</p>
<p> I hope it gets better soon </p> VM770:2
published_at:2014-02-06 03:36:04 VM770:2
created_at:2014-02-05 09:08:06.73429 VM770:2
updated_at:2014-02-06 03:36:04.28132 VM770:2
publish_name:blah VM770:2
...

在你的情况下，你会直接找到“代码”键，所以你可以这样做：

$(document).ready(function(){
  $( ".result" ).on( "click", "#edit_template", function() {
    $.getJSON("/get_template_info?name=blah", function(data) {
      var template_txt = '<p>' + data["code"] + '</p>';
      $(".edit_div").append(template_txt);
    });
  });
});

使用ruby，Sinatra和Mandrill如何从api调用中访问单个元素并以HTML格式打印？

1 个答案: