使用Rails和jQuery问题的Ajax请求

时间：2022-10-09 07:32:53

I have a favourite and un-favourite functionality in my application and I am using jQuery. This functionality works partially. The page gets loaded, and when I click the 'favourite' button(it is inside add_favourite_div element), it sends a XHR request and the post is set as favourite. Then a new div called "remove_favourite_div" replaces its place.Now when I click the remove favourite(which is part of remove_favourite_div), it sends a normal http request inside of xhr.

我在我的应用程序中有一个最喜欢和不喜欢的功能，我正在使用jQuery。此功能部分有效。页面被加载，当我点击“收藏”按钮（它在add_favourite_div元素内）时，它会发送一个XHR请求，并将帖子设置为收藏夹。然后一个名为“remove_favourite_div”的新div替换它的位置。现在当我单击remove favorite（它是remove_favourite_div的一部分）时，它会在xhr内发送一个正常的http请求。

The structure when the page gets loaded first time

第一次加载页面时的结构

<div id="favourite">        
  <div id="add_favourite_div">
     <form method="post" id="add_favourite" action="/viewpost/add_favourite">
       <div style="margin: 0pt; padding: 0pt; display: inline;">
            <input type="hidden"  
             value="w873BgYHLxQmadUalzMRUC+1ql4AtP3U7f78dT8x9ho=" 
             name="authenticity_token">
       </div>
       <input type="hidden" value="3" name="Favourite[post_id]" 
        id="Favourite_place_id">
       <input type="hidden" value="2" name="Favourite[user_id]" id="Favourite_user_id">
       <input type="submit" value="Favourite" name="commit"><br>
      </form>
  </div>
</div>

DOM after clicking on the unfavourite button

单击不喜欢的按钮后的DOM

<div id="favourite">
  <div id="remove_favourite_div">
    <form method="post" id="remove_favourite" action="/viewpost/remove_favourite">
       <div style="margin: 0pt; padding: 0pt; display: inline;">
          <input type="hidden" value="w873BgYHLxQmadUalzMRUC+1ql4AtP3U7f78dT8x9ho=" 
          name="authenticity_token">
       </div>   
       <input type="hidden" value="3" name="Favourite[post_id]" id="Favourite_place_id">
       <input type="hidden" value="2" name="Favourite[user_id]" id="Favourite_user_id">
       <input type="submit" value="UnFavourite" name="commit"><br>  
    </form>
  </div>
</div>

In my application.js, I have two functions to trigger the xhr request

在我的application.js中，我有两个函数来触发xhr请求

$("#add_favourite").submit(function(){
        alert("add favourite");
        action = $(this).attr("action")
        $.post(action,$(this).serialize(),null,"script");
        return false;
    });

$("#remove_favourite").submit(function(){
        alert("remove favourite");
        action = $(this).attr("action");
        $.post(action,$(this).serialize(),null,"script");
        return false;
    });

Here, when the post is initially not a favourite, favourite button is displayed and when i clicked on the button, $("#add_favourite").submit gets called and unfavourite form is displayed correctly, but now when I click on the un-favourite button, $("#remove_favourite").submit does not get called.

在这里，当帖子最初不是最喜欢的时候，显示最喜欢的按钮，当我点击按钮时，$（“＃add_favourite”）。提交被调用，并且不正确的形式被正确显示，但现在当我点击un-最喜欢的按钮，$（“＃remove_favourite”）。submit不会被调用。

The whole scenario is true in both ways, I mean favourite->Unfavourite and Unfavourite->favourite

整个场景在两个方面都是正确的，我的意思是favourite-> Unfavourite和Unfavourite->最爱

Can someone please help me to solve this Thanks

有人可以帮我解决这个问题

2 个解决方案

#1

0  

I don't see the mechanism that actually causes "remove_favourite_div" to take the place of "add_favourite_div". If it's done dynamically, and after you've attached event handlers, then the problem is simply that your $("#remove_favourite").submit(function(){...}); happened before there was any such form on the page.

我没有看到实际上导致“remove_favourite_div”取代“add_favourite_div”的机制。如果它是动态完成的，并且在你附加事件处理程序之后，问题就在于你的$（“＃remove_favourite”）。submit（function（）{...}）;发生在页面上有任何此类表格之前。

Attach those same event handlers after swapping out the divs and it should work fine.

在交换div之后附加那些相同的事件处理程序，它应该工作正常。

#2

0  

It was because of the DOM reloading, I came to know about it in a number of resources. I am posting a few

这是因为DOM重新加载，我在许多资源中开始了解它。我发帖了几个

Hope it helps :)

希望能帮助到你 ：）

#1

0  

I don't see the mechanism that actually causes "remove_favourite_div" to take the place of "add_favourite_div". If it's done dynamically, and after you've attached event handlers, then the problem is simply that your $("#remove_favourite").submit(function(){...}); happened before there was any such form on the page.

我没有看到实际上导致“remove_favourite_div”取代“add_favourite_div”的机制。如果它是动态完成的，并且在你附加事件处理程序之后，问题就在于你的$（“＃remove_favourite”）。submit（function（）{...}）;发生在页面上有任何此类表格之前。

Attach those same event handlers after swapping out the divs and it should work fine.

在交换div之后附加那些相同的事件处理程序，它应该工作正常。

#2

0  

It was because of the DOM reloading, I came to know about it in a number of resources. I am posting a few

这是因为DOM重新加载，我在许多资源中开始了解它。我发帖了几个

Hope it helps :)

希望能帮助到你 ：）

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