[wp-testers] WP3 RC3 -- Child theme troubles w Functions.php

[Doug Joseph]

As soon as I try to use a child theme with a functions.php file and a
header.php file, I get this:

 

Fatal error: Call to undefined function twentyten_the_page_number() in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/header.php  on line 25

 

Note that line 25 says:

 

                                    twentyten_the_page_number();

 

 

Note: In my attempt, the headers.php file in the child theme was identical
to the one in the Twenty Ten theme!

 

Anticipating the odd reply that I should not need an identical headers file,
and "why don't you delete it?" - That does not address the issue, but
nevertheless I did delete it, and then.

 

When I deleted the headers.php file the above error went away. **However**,
when I tried to log out (I was logged in at that moment), I got these
errors:

 

 

Warning: Cannot modify header information - headers already sent by (output
started at
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/functions.php:1) in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-login.php on line 337

 

Warning: Cannot modify header information - headers already sent by (output
started at
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/functions.php:1) in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-login.php on line 349

 

Warning: Cannot modify header information - headers already sent by (output
started at
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/functions.php:1) in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-includes/pluggable.php on
line 690

 

Warning: Cannot modify header information - headers already sent by (output
started at
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/functions.php:1) in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-includes/pluggable.php on
line 691

 

Warning: Cannot modify header information - headers already sent by (output
started at
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/functions.php:1) in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-includes/pluggable.php on
line 692

 

Warning: Cannot modify header information - headers already sent by (output
started at
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/functions.php:1) in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-includes/pluggable.php on
line 890

 

 

I was not able to log out.

 

I was able to browse the site (while still logged in). 

 

I tried to edit a post. I was able to view the editing form, but when I
tried to publish the changes, I got this:

 

Warning: Cannot modify header information - headers already sent by (output
started at
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-content/themes/wvupci-twent
yten-child-theme/functions.php:1) in
/home/content/d/o/u/dougjoseph/html/wvupciorg/wp-includes/pluggable.php  on
line 890

 

I have had problems trying to have a functions.php file even when the file
has no code, just opening and closing tags. However, at this time I have
been trying to use the file to include code for a child theme implementation
of a favicon, some code for a default category icon, and some code to add
additional default header images. Below is the code from what I attempted to
do with functions.php:

 

/* Below: Favicon code (for a child theme) -- the path must be a subfolder
of the child theme */

 

function childtheme_favicon() { ?>

            <link rel="shortcut icon" href="<?php echo
bloginfo('stylesheet_directory') ?>/images/favicon.ico">

      <?php }

      add_action('wp_head', 'childtheme_favicon'); 

 

 

/* Below: How to set a default Category Icon 

 

(this tip is from http://www.category-icons.com/page/2/)

 

Suppose you have categories that don't have yet an icon assigned to. If you
want to display a default icon 

instead of nothing (no icon), here is the code that you must paste in
functions.php (in your theme) */

 

function bm_noicon($content) {

 if (empty($content)) {

   $content = '<img
src="http://wvupci.com/wp-content/uploads/WV-District-Logo-0064x0064.png"
alt="default icon" />';

 }

 return $content;

}

add_filter('category_icons', 'bm_noicon');

 

 

/* The following is a function for my child theme. It sets up and adds
additional default header images. */

 

add_action( 'after_setup_theme', 'wvupci_theme_setup' );

function wvupci_theme_setup(){

 

/* Add additional default header images (Some photos are by Aaron Hockley of
Hockley Photography) */

 

            $wvupci_theme_dir =      get_bloginfo('stylesheet_directory');

            register_default_headers( array (

                        'lights' => array (

                                    'url' =>
"$wvupci_theme_dir/images/headers/lights.jpg",

                                    'thumbnail_url' =>
"$wvupci_theme_dir/images/headers/lights-thumbnail.jpg",

                                    'description' => __( 'Lights by Aaron
Hockley', 'wvupci-twentyten-child-theme' )

                        ),

                        'train' => array (

                                    'url' =>
"$wvupci_theme_dir/images/headers/train.jpg",

                                    'thumbnail_url' =>
"$wvupci_theme_dir/images/headers/train-thumbnail.jpg",

                                    'description' => __( 'Train by Aaron
Hockley', 'wvupci-twentyten-child-theme' )

                        ),

                        'bridge' => array (

                                    'url' =>
"$wvupci_theme_dir/images/headers/bridge.jpg",

                                    'thumbnail_url' =>
"$wvupci_theme_dir/images/headers/bridge-thumbnail.jpg",

                                    'description' => __( 'Bridge by Aaron
Hockley', 'wvupci-twentyten-child-theme' )

                        ),

                        'wvupci-001-music' => array (

                                    'url' =>
"$wvupci_theme_dir/images/headers/wvupci-001-music.jpg",

                                    'thumbnail_url' =>
"$wvupci_theme_dir/images/headers/wvupci-001-music-thumbnail.jpg",

                                    'description' => __( 'wvupci-001-music
by Doug Joseph', 'wvupci-twentyten-child-theme' )

                        ),

                        'wvupci-002-music' => array (

                                    'url' =>
"$wvupci_theme_dir/images/headers/wvupci-002-music.jpg",

                                    'thumbnail_url' =>
"$wvupci_theme_dir/images/headers/wvupci-002-music-thumbnail.jpg",

                                    'description' => __( 'wvupci-002-music
by Doug Joseph', 'wvupci-twentyten-child-theme' )

                        )

            ));

}

 

Sincerely,
Doug Joseph