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As of now my uploaded files are organized by year and month. But I would like to organize them by year, month and day. I mean like this 2012/10/30/image goes here

PS: There is a plugin available to do this. But I don't want to use a plugin for this simple task. Thanks

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@kaiser Sorry.. Corrected it.. I'm not going to use the code in my theme functions but going to use it in my mu-plugins. –  Giri Oct 30 '12 at 12:21
    
I already corrected that for you (it's the other way 'round ;) ) - rolled back. –  kaiser Oct 30 '12 at 12:26
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1 Answer

up vote 2 down vote accepted

Code based in other Answer of mine and this SO Answer.

It uses the post/page/cpt publish date to build the paths.
Note that $the_post->post_date_gmt is also available.

add_filter('wp_handle_upload_prefilter', 'wpse_70946_handle_upload_prefilter');
add_filter('wp_handle_upload', 'wpse_70946_handle_upload');

function wpse_70946_handle_upload_prefilter( $file )
{
    add_filter('upload_dir', 'wpse_70946_custom_upload_dir');
    return $file;
}

function wpse_70946_handle_upload( $fileinfo )
{
    remove_filter('upload_dir', 'wpse_70946_custom_upload_dir');
    return $fileinfo;
}

function wpse_70946_custom_upload_dir($path)
{   
    /*
     * Determines if uploading from inside a post/page/cpt - if not, default Upload folder is used
     */
    $use_default_dir = ( isset($_REQUEST['post_id'] ) && $_REQUEST['post_id'] == 0 ) ? true : false; 
    if( !empty( $path['error'] ) || $use_default_dir )
        return $path; // Error: not uploading from a post/page/cpt 

    $the_post = get_post( $_REQUEST['post_id'] );
    $y = date( 'Y', strtotime( $the_post->post_date ) );
    $m = date( 'm', strtotime( $the_post->post_date ) );
    $d = date( 'd', strtotime( $the_post->post_date ) );

    $customdir = '/' . $y . '/' . $m . '/' . $d;

    $path['path']    = str_replace($path['subdir'], '', $path['path']); //remove default subdir (year/month)
    $path['url']     = str_replace($path['subdir'], '', $path['url']);      
    $path['subdir']  = $customdir;
    $path['path']   .= $customdir; 
    $path['url']    .= $customdir;  

    return $path;
}
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Hi thanks for the code. But its not working in my site. I'm using the magic field plugin for custom fields. This plugin handles my image uploads. It uses wp_upload_dir() function to store the images. Right now my image uploads are organized by year and month. I'm using your code in my mu-plugins folder. But when I upload a file its still not using day folder. Its not at all creating day folder. Am i missing something? Do i have to uncheck "Organize my uploads into month- and year-based folders" in media settings? –  Giri Oct 31 '12 at 21:51
    
If the plugin "handles the image uploads", maybe we have a conflict of interests here... Can you post the relevant code it uses for that? –  brasofilo Oct 31 '12 at 21:59
    
Please Note line number 19,30,31 of this file and line 86,87 of this file. The second one has the main upload function of that plugin. Thanks –  Giri Nov 1 '12 at 0:09
    
At a first glance, I don't see a way to surpass those plugin constants... I doubt, but try to give a late priority to the hooks, i.e., add_filter('wp_handle_upload', 'wpse_70946_handle_upload', 9999 );. :::: This code works for me in TwentyEleven without any active plugins and with Media Settings "Organize my uploads..." checked/unchecked. :::: If the code works for you without Magic Fields being active, then I guess you'll need to open a new Question or a support request... :/ –  brasofilo Nov 1 '12 at 0:27
    
Ok Thanks.. I'll give it a try. And one more weird thing. As i said earlier I put your code in my mu-plugins folder. My server time now is 00:44 Nov 1. I see some new folders 1970/01/01 and my existing image links are broken. Any idea? –  Giri Nov 1 '12 at 0:51
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