Support » Plugin: Widget CSS Classes » PHP error: Trying to get property of non-object

  • Resolved peterhebert


    When I have no published posts, the plugin produces the following PHP error in all widget areas:

    Notice: Trying to get property of non-object in /wp-includes/post-template.php on line 29

    Upon publishing a post, the notices go away. When I deactivate the plugin, no errors. I deactivated all other plugins, narrowed it down to this one. Same thing happens across multiple themes (tested with twenty fourteen and my custom theme).

    Having no posts is not a common scenario, of course, but the bug should be fixed nonetheless.

Viewing 8 replies - 1 through 8 (of 8 total)
  • Note that this notice appears once for every widget.

    I’ve noticed this problem as well on pages that don’t have any posts returned; an example would be a search results page when no results are found.

    It looks like a check needs to be added to the following file/line to make sure a post ID exists before assigning the meta to the $custom_sidebarcheck variable.

    Line: 122

    Hopefully Cindy throws this check into a future version of the plugin. This is one of the most helpful plugins I’ve used, really nice work Cindy!!

    Plugin Author Cindy Kendrick


    That is one testing scenario I did not do, so thank you for pointing it out. I will fix the notice.

    Having same problem on search result page with no posts to display. Thx for looking into this Cindy.

    Plugin Author Cindy Kendrick


    This should be fixed in the version I just released (1.2.6)

    Cindy, could you tell us what was causing this? I have a theme giving the same error message and haven’t been able to track down the cause.

    Plugin Author Cindy Kendrick


    I had to make sure there actually was a post ID before getting the value. This is the modified portion of the code:

    global $post;
    $id = ( isset( $post->ID ) ? get_the_ID() : NULL );
    if ( isset( $id ) && get_post_meta( $id, '_customize_sidebars' ) ) {
    $custom_sidebarcheck = get_post_meta( $id, '_customize_sidebars' );

    Thanks, Cindy. It turns out that “if $id = get_the_ID” is already after the error is caught, so I had to put “if have_posts” first and that took care of it.

Viewing 8 replies - 1 through 8 (of 8 total)
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