First let me mention that I'm new to basic php and this error was a result of my first attempt to install a custom plug-in and insert a do_action command. I'm hoping that the solution will be an easy fix that I overlooked due to my lack of experience.
I was attempting to exclude the category "statfactcomic" from my home page blog by using the pre_get_posts action documented in the Codex here.
I pasted the Codex code into a .php file and manually uploaded the plugin into my Plugins WordPress folder. The simple plugin contains the following code:
<?php
/*
Plugin Name: Exclude Comics
Description: This function excludes webcomics from the WordPress posts loop.
Author: Eric Erbes
*/
function exclude_category( $query ) {
if ( $query->is_home() && $query->is_main_query() ) {
$query->set( 'cat', '-statfactcomic' );
}
}
add_action( 'pre_get_posts', 'exclude_category' );
?>I then opened my theme's (Liquorice version 2.2) index.php added a do_action command to the following location:
<?php
get_header();
if (have_posts()): ?>
<ol id="posts">
<?php do_action( 'pre_get_posts', 'exclude_category' ); ?>
<?php while (have_posts()) : the_post(); ?>
<li id="post-<?php the_ID(); ?>" <?php post_class('postWrapper'); ?>>When I refresh my website I get the following error message where my blog should be:
Fatal error: Call to a member function is_home() on a non-object
The error references the line in my custom plugin that contains the code:
if ( $query->is_home() && $query->is_main_query() ) {
I've spent waaay to much time troubleshooting this problem. Any insight would be much appreciated. :)
