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So I got this to sort my posts and it works great:

<div class="sort">
   Sort by  
     <select onclick="if (this.value) { document.location = this.value; }">  
        <option value="" selected="selected">Latest first</option>  
        <option value="<?php echo $short_page_url; ?>?orderby=date">Oldest first</option>  
        <option value="<?php echo $short_page_url; ?>?orderby=title">Titles A-Z</option>  
     </select>
</div>

But how can I have the order as separate dropdown/links to change between ASC and DESC? So it adds "&order=desc/asc" to the link when there's "?orderby=title/date" present?

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1 Answer

up vote 1 down vote accepted

I would do something like this:

<script type="text/javascript">
    //http://www.netlobo.com/url_query_string_javascript.html
    function gup( name, default_value )
    {
      name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
      var regexS = "[\\?&]"+name+"=([^&#]*)";
      var regex = new RegExp( regexS );
      var results = regex.exec( window.location.href );
      if( results == null )
        return default_value;
      else
        return results[1];
    }   
    //here you can output default values for sortby and order by your php script
    var orderby = gup("orderby","");
    var order = gup("order","");
    function change_url() {
        var url = "<?php echo $short_page_url; ?>?orderby="+orderby+"&order="+order;
        document.location = url;
    }

    //you still have to let javascript or php select the correct options
</script>
<div class="sort">
   Sort by  
     <select onclick="if (this.value) { orderby = this.value; change_url(); }">  
        <option value="" selected="selected">Latest first</option>  
        <option value="date">Oldest first</option>  
        <option value="title">Titles A-Z</option>  
     </select>
   Order 
     <select onclick="if (this.value) { order = this.value; change_url(); }">  
        <option value="asc">asc</option>  
        <option value="desc">desc</option>  
     </select>
</div>
share|improve this answer
    
Thank you, this seems to be very close, but when the orderby is title the url goes to default ?orderby=date&order=asc when I try to select either asc or desc. –  Andrew Mar 26 '12 at 9:36
    
I edited the code, so that it will take orderby and order from url parameters. –  xaedes Mar 26 '12 at 12:12
    
notice : you still have to let javascript or php select the correct options. –  xaedes Mar 26 '12 at 12:13
    
Very nice, thank you. Got it working perfectly with the updated code. –  Andrew Mar 27 '12 at 7:15
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