Loading WordPress posts with Ajax and jQuery

Emanuele Feronato Ajax, Javascript, Php, WordPress

After seeing how to include jQuery Ajax calls in your WordPress blog, it’s time to load posts on the fly, without reloading the page.

As for the previous example I am using the standard Kubrick theme… without any plugin installed.

Look how I load the posts under the header by clicking on their titles… even the ones with “more” tag appear complete without reloading the page:

Let’s start with header.php modifications

This is the script I added under

That is the JQuery part

I already explained the first 4 lines in the previous tutorial.

Line 5: Waiting for the user to click on an hypertext over an h2 heading. I am doing it because in Kubrick post titles are rendered this way:

This should change from theme to theme, but this works on Kubrick

Line 6: Retrieving the rel attribute of the link and saving it in a variable called post_id. You’ll see later in this tutorial how this attribute will contain the unique ID of the post we want to show.

Line 7: In an element with your_post_here id I am writing “loading…” because I’m starting to load the post. You’ll see later in this tutorial where to place the element

Line 8: Now thw ajax magic… in the your_post_here element this time I load the output of a page of the blog called triqui-ajax. You’ll se later in this tutorial how to create it. This will work if the permalinks of your blog aren’t the default ones. Go to Settings -> Permalinks and select Day and name

I am also passing in POST a variable called id with the content of post_id variable (the post unique id)

Line 9: I added this line to prevent the browser to jump to the link… remember? I want to load the post in the same page.

Now it’s time to make some changes to index.php

This is how I modified it:

To tell the truth, I only added a line and changed a bit another one:

Line 10: This is the div that will contain the post, the one I change with jQuery (remember? lines 7 and 8 in the jQuery script)

Line 16: Here I changed the rel attribute to store the unique id of the post I want to load. I used it at line 6 in the jQuery script

And the template files do not need any other change.

Now it’s time to create a new page template with some code that will load the selected post.

In your template directory create a new php file, no matter its name… you can call it example.php and write this:

As you can see it’s almost the same code you can find in index.php at lines 15-24… because I just want to load a post in the same way the index file does. I just removed the anchor tag in the title, because I don’t want it to be clickable. And obviously I read the id value passed by the jQuery script at line 8

The only interesting lines are lines 2-4… yes, the comment… because this way I am giving the template page the name Triqui Ajax Post.

Now in your admin area create a new page, call it Triqui Ajax (do you remember the permalink url at line 8 in the jQuery script…) and select Triqui Ajax Post as template

And that’s it… you don’t need anything else, and the blog will work as in the video.

Enjoy

Comments 78

  1. Pingback: Loading WordPress Post with AJAX and JQuery | WPLover

  2. Pingback: Loading WordPress posts with Ajax and jQuery – a real world example : Emanuele Feronato - italian geek and PROgrammer

    1. Marc

      Damnit, What was it that you replaced it with @samuel?

      I have tried everything with this. It just doesn’t work.

      I AM using 3.0

      Please let readers know if this works on 3.0!

      Thanks so much for your help,
      Marc

  3. Ben

    Hi,

    This is a great tutorial. However I need to achieve something different. I have a list of categories that show initially in a certain page. When I click one category, the posts under that category should show via ajax in the same page. I already made this part working. So now that the posts under the category I selected are displayed, what I want to do is, when I click a post, the content of that post should also be loaded in the same page via ajax. So this should all happen without leaving the page that I was on from the start.

    Please help. Im really stucked.

    Thanks!

    1. Ben

      I get it now. I was sure that loaded links arent working using the “.click”. I found out about the “.live” and its working now. So I used the original code you provided for the initial links that I have – which are the categories, then I added another function for the links that are freshly loaded – the posts under the selected category:

      $(“a.loaded-link”).live(‘click’, function(){
      var post_id = $(this).attr(“rel”)
      $(“#your_post_here”).html(“loading…”);
      $(“#your_post_here”).load(“http:///my-other-php-file/”,{id:post_id});
      return false;
      });

      Im now calling a different file that generates a different output.

  4. Steven

    Nice technique! But the downside is that the url doesn’t change so you can’t use the back and forward buttons of your browser. I want to use jQuery Address together with you code. How do I begin?

  5. trusktr

    Wow, this is very cool! I had to change line 8 around a little bit so that it reflected the URL of my blog in a subfolder.

    If yours doesn’t work, look at your outputted source code and the javascript should contain the path to/your/wordpress/install/ or it won’t work…

    By default, this code will just use your base domain and so it will only work as written on this page if you have your wordpress installed in the root folder. You need to change it to reflect your wordpress location.

  6. shag

    killer post. This is almost exactly what I needed. One thing though, my next/previous post links aren’t working as I would have hoped. I’d like to load in the next/prev post via ajax into the #your_post_here div. Any thoughts on that?

    thanks in advance.

    1. shag

      nevermind. Once again I’m guilty of over-thinking things. I ended up creating a WP template file and page with just the info I wanted and opening that in a shadowbox where I can more easily use all the usual WP get_post functions etc., including the standard next/prev nav.

  7. Richard

    Love this feature, used it before.. but now have a problem I can’t get my head around.

    Developed site in a testing directory and it worked perfectly. Moved information to live directory (all on same server). Changed all necessary information (.htaccess, wordpress config, etc.) and WordPress is working cleanly. The javascript executes (triqui ajax loads) but it seems no post ID is being referred. I checked the variable in javascript and it is correct but $post is empty when checked in the template file. Entering a static value (in the template file) into the if variable works fine, content loads as it is supposed to. But for the life of me I can’t get the post id to get the info from the .load function.

    Any ideas?

  8. Peter

    Thanks for the tips. I was able to easily modify and play with it. Loaded posts by categories as archives without reloading the page. Awesome!

  9. Lara

    Hey,
    thanks for the tutorial. I try to implement the mechanism into my blog to prevent refreshing the background. I have two question concerning the coding:

    1. @ $(“h2 a”).click(function(){
    Can you just change “h2 a” into another div id used in the CSS template like $(“marker”)?

    2. If I wanted to use several on click conditions would I just add another block like the following into the script?

    $(“h1 a”).click(function(){
    var post_id = $(this).attr(“rel”)
    $(“#your_post_here”).html(“loading…”);
    $(“#your_post_here”).load(“http:///triqui-ajax/”,{id:post_id});
    return false;
    });

    Would be glad if you could help me!

  10. r3v

    i try this tutorial but my side bar is lost, and i request ajax just for post , side bar and widget still in place.. thanks for advance…

  11. Alessandro Muraro

    I’m about to try this solution, the only problem i think I might face beside technical issues, is that my irl will not be sharable through twitter and facebook. am i wrong? I mean, the permalinbk can be returned no problem, but my permalink won’t have the proper header/footer graphics because it is though to be a dinamically loaded content. Did you get around this?
    Or you just dont need such a feature?
    Alex

  12. Gabriel Nechita

    Hi there, thank you for this great tutorial, can I adapt this script to a button that also show a random post?

    I’m looking to create a great feature for a website and I really need to know if this can be done.

    The website has wordpress running, and I’ve already done the random post button, but I want the posts to load via ajax with no browser refresh.

    Can you please help me?

  13. Lawrence Dionisio

    Hi,

    Very nice tutorial indeed and I have it working on my test site. I just have a minor (maybe major) tweak on it that I could not figure out.

    Is there a way to automatically load the first/recent post so that a content will always be present?

  14. Karen

    Hi I saw your blog a couple of days back and liked the articles listed.

    I work for CHW a website on web hosting and web designing. I would love to contribute something that your readers would like, possibly something about blogging.

    Would it be possible to guest post an article on your site?

    Regards,
    Karen

  15. YourTubeTheme

    This Ajax tut was just what I was looking for, thank you! For ppl wondering about SEO, it will not have any negative affect, because you can still reach the post if you go to it through the post url.

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  18. deiv calviz

    Thanks for the tutorial! Is there a way for the post excerpts to load inline? Just like in facebook.

    There’s a plugin called AJAX Read More but it only works for the tag and not for excerpts.

  19. Joe

    Nice!
    I am searching for a possibility in WordPress to (ajax)load content splitted by a wp_link_pages-function into the same div.
    Any ideas?

    Thanks!

  20. Pingback: After seeing how to include jQuery Ajax calls in your WordPress blog, it’s time to load posts on the fly, without reloading the page. | Public Notes

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  27. Arpita

    You should use /?page_id=x for your loading link, so even if your wordpress is installed on subdirectory, it will get the right URL.

    Arpita

  28. Reinaldo

    Ciao,
    Complimenti per il post, l’ho provato e funziona davvero molto bene!
    Volevo chiederti se mi potresti aiutare a capire come potrei fare per aprire la seconda pagina con tutti i post che voglio.
    per esempio:
    Tutti i post sono la stessa categoria, peró vorrei che all’indirizzo http://www.highlike.com.br la prima pagina mi mostri i 22 ultimi post random e alla fine, un pulsante “load more” per caricare gli altri 22 post (esclusi i 22 gia caricati di forma randon nel primo loop), soltanto voglio aggiungere sempre le pagine seguenti (non randon, ma per ordine di data del post)..
    Dici che é possibile una cosa del genere?

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  32. Gerardo Vidal

    Hi, Thanks for the code, it worked perfect to me, but I also have a problem, in the pages where i’m using ajax, the nav menu doesn’t appear (it is a theme nav menu, defined in the admin). And the problem is only with the footer menu, the one in the header (that is also defined in the admin) works.

    Any idea of how could I solve this?

    Thanks again.

  33. Daniel

    I man,
    First of all, thanks a lot for this article.
    I used it on a website but I am having a really really slow response. Sometimes more than 1 second of delay after the click, even if i just load text…

  34. Anxhelo

    hello there!
    First of all excellent script my friend!

    Now… It is any way to change and the url dynamically to make this script “SEO Friendly”?

    Thanks..!

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  37. Christopher English

    Great article, I have a question though….

    I’m working on a site where each post is full screen (page)…
    how would I modify it so that clicking on the navigation links refreshes the page instead of simply adding a post on top of another?

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  40. David Condrey

    I noticed today as I continued to build this site I’m creating for a client, that even though I had custom page templates, all of the pages were defaulting to the ajax.php file I had created following this tutorial. It’s not a problem but just took me a few minutes to determine how to rectify the issue so figured I’d share.

    All I did was in the ajax.php file I added conditional statements for each page to direct it back to the proper template so my final ajax.php file looks like this as an example:

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