有人可以解释为什么下面的代码不会更改我的帐户节点吗？
我已经尝试了各种教程和指南的变体，我可以找到这些变更来改变我的帐户＆＃39; Wordpress 4.8中的节点文本，我所做的一切似乎都有效。我在2个不同的网站上尝试了来自这些网站的代码变体（包括下面的代码）和2个不同的主题，行为是相同的 - 管理工具栏中的目标节点没有变化。
我留下了一个注释掉的变体，应该简单地替换函数底部的节点，以防有人告诉我为什么不起作用。我已经仔细研究过Wordpress Codex试图解决这个问题，但无济于事。
我也尝试将优先级设置为999，但这也没有影响。
/* --- change the greeting for the admin bar --- */
add_action( 'admin_bar_menu', 'update_admin_bar_user_node', 250 );
function update_admin_bar_user_node( $wp_admin_bar ) {
$user_id = get_current_user_id();
$current_user = wp_get_current_user();
$profile_url = get_edit_profile_url( $user_id );
if ( ! $user_id )
return;
if ( current_user_can( 'read' ) ) {
$profile_url = get_edit_profile_url( $user_id );
} elseif ( is_multisite() ) {
$profile_url = get_dashboard_url( $user_id, 'profile.php' );
} else {
$profile_url = false;
}
$avatar = get_avatar( $user_id, 26);
$msgtext = fancy_greeting_text();
$newtitle = sprintf( __( '%1$s, %2$s' ), $msgtext, '<span class="display-name">' . $current_user->display_name . '</span>' );
$class = empty( $avatar ) ? '' : 'with-avatar';
// remove the current my-account node
$wp_admin_bar->remove_node( 'my-account' );
// add the node back with the updates
$wp_admin_bar->add_node( array(
'id' => 'my-account',
'parent' => 'top-secondary',
'title' => $newtitle . $avatar,
'href' => $profile_url,
'meta' => array(
'class' => $class,
),
) );
// lets go ahead and add the users website to the sub-menu if they have one
// will need to rebuild the rest of the user-actions menu if we have to remove the node above
$my_account = $wp_admin_bar->get_node( 'my-account' );
if( ! empty( $current_user->user_url ) && $my_account ){
$wp_admin_bar->add_node( array(
'parent' => 'user-actions',
'id' => 'user-url',
'title' => '<span class="user-url">' . __( 'My Website' ) . '</span>',
'href' => esc_url( $current_user->user_url )
) );
}
// $my_account = $wp_admin_bar->get_node('my-account');
// $msgtext = fancy_greeting_text();
// $newtitle = str_replace( 'Howdy', $msgtext, $my_account->title );
// $args = array(
// 'id' => 'my-account',
// 'title' => $newtitle,
// );
// $wp_admin_bar->add_node( $args );
}
function fancy_greeting_text() {
//date_default_timezone_set('America/Denver');
$date = date('d-m');
$hour = date('G');
switch($date) {
case '01-01':
$message = 'Happy New Year';
break;
case '25-12':
$message = 'Merry Christmas';
break;
default:
//$message = 'Welcome';
//$message = "Logged in as";
if ( $hour >= 5 && $hour <= 11 ) {
$message = "Good morning";
} else if ( $hour >= 12 && $hour <= 18 ) {
$message = "Good afternoon";
} else if ( $hour >= 19 || $hours <= 4 ) {
$message = "Good evening";
}
}
return $message;
}
答案 0 :(得分：0)
So after days of fiddling on and off, I finally figured out what was happening, and while it was something simple-stupid, I took the opportunity to clean up the code just a tad in the process. So the real reason this did not work was a function intended to manipulate the date and time from the client had a curly apostrophe in a section of code that I had pasted from an article elsewhere while trying to figure out how to get the users time to the server to customize the greeting for time of day. It should probably be noted the offending piece of code was BEFORE this function and affecting everything after it.
Ultimately I opted for a simpler and slightly different approach to accomplishing my goals using javascript... the resulting code is posted below.
I also know there are probably areas where this code could be improved, but since I am using an older hosting account, simplicity and backward compatibility are a factor. I also modified the fancy_greeting_text function and kept it as a fallback in the event javascript is disabled on the client or it fails to run for some other reason. The sprintf was changed to wrap the greeting in a span tag so the javascript could later access and change it. Something else that is changed, the line to remove the my-account node was unnecessary, it seemed to have no affect on rendering the toolbar with my desired changes.
Anyway, the updated functions.php code that worked, including the client based Holiday and Time of Day greeting is as follows:
//-----------------------------------------------------------------------------
/* --- change the greeting for the admin bar --- */
add_action( 'admin_bar_menu', 'update_admin_bar_user_node', 250 );
function update_admin_bar_user_node( $wp_admin_bar ) {
$user_id = get_current_user_id();
$current_user = wp_get_current_user();
$profile_url = get_edit_profile_url( $user_id );
if ( ! $user_id )
return;
if ( current_user_can( 'read' ) ) {
$profile_url = get_edit_profile_url( $user_id );
} elseif ( is_multisite() ) {
$profile_url = get_dashboard_url( $user_id, 'profile.php' );
} else {
$profile_url = false;
}
$avatar = get_avatar( $user_id, 26);
$greeting = fancy_greeting_text();
/* tokens: [%1: greeting text] [%2: current user's display name] */
$newtitle = sprintf( __( '%1$s, %2$s' ), '<span id="title-greeting" class="greeting">' . $greeting . '</span>', '<span class="display-name">' . $current_user->display_name . '</span>' );
$class = empty( $avatar ) ? '' : 'with-avatar';
// update the node with the changes
$wp_admin_bar->add_node( array(
'id' => 'my-account',
'parent' => 'top-secondary',
'title' => $newtitle . $avatar,
'href' => $profile_url,
'meta' => array(
'class' => $class,
),
) );
// Add the users website/link to the user-actions sub-menu if they have one
$my_account = $wp_admin_bar->get_node( 'my-account' );
if( ! empty( $current_user->user_url ) && $my_account ){
$wp_admin_bar->add_node( array(
'parent' => 'user-actions',
'id' => 'user-url',
'title' => '<span class="user-url">' . __( 'My Website' ) . '</span>',
'href' => esc_url( $current_user->user_url )
) );
}
}
function fancy_greeting_text() {
/* -- greeting message based on server values - fallback -- */
if ( !date_default_timezone_get() ) {
//set a default timezone
date_default_timezone_set('America/Chicago');
}
$date = date('d-m');
$hour = date('G');
switch($date) {
case '01-01':
$message = 'Happy New Year';
break;
case '25-12':
$message = 'Merry Christmas';
break;
default:
$message = 'Welcome';
}
//debug//$message.= " (".$hour.")"; // view the hour variable used to determine greeting
return $message;
}
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
/* --- Display custom Time of Day Greeting in Wordpress Admin Toolbar --- */
add_action( 'wp_after_admin_bar_render', 'custom_title_greeting', 9999 );
function custom_title_greeting() {
?>
<script type=text/javascript>
var now = new Date();
var mm = now.getMonth()+1;//January is 0!`
var dd = now.getDate();
var hr = now.getHours();
var holidate = dd+'-'+mm;
//console.log('hr->'+hr);
switch (holidate) {
case '01-01':
$greeting = 'Happy New Year';
break;
case '25-12':
$greeting = 'Merry Christmas';
break;
default:
if ( hr >= 5 && hr <= 11 ) {
$greeting = 'Good Morning';
} else if ( hr >= 12 && hr <= 18 ) {
$greeting = 'Good Afternoon';
} else if ( hr >= 19 && hr <= 4 ) {
$greeting = 'Good Evening';
} else {
$greeting = 'Welcome';
}
}
// update the existing fallback greeting with new client based greeting
document.getElementById('title-greeting').innerHTML = $greeting;
</script>
<?php
}
//-----------------------------------------------------------------------------
For those who are new to Wordpress, like myself, I should also probably point out that since the admin toolbar is not rendered until near the end of the page itself being rendered, you MUST use the following Wordpress Action Reference (I believe that is the correct term) - wp_after_admin_bar_render - to update the toolbar using javascript from within the functions.php file, otherwise you will get undefined "null" errors as the id title-greeting would not be available in the DOM at the time it is needed if you only used the - admin_bar_menu - action reference.
I'm sure a better commentary could be written, but I think this covers the reasons why it did not work at first and what was done to improve the code, correct the errors and accomplish the desired functionality.