Where exactly is the "Before Header Content hook" in Wordpress? - wordpress

I want to add a little code to the "Before Header Content hook" but I don't know where that is... Can you please help me?

Try:
add_action('init', 'process_post');
function process_post()
{
echo "test";
}

this is a modified version of #ajay 's solution
if you are going to use this, then you have to make sure that the current user is not an admin using is_admin() function.. and only display it if he is not an admin ...
why !?
because if you didn't, it may mess up the wp-admin of your website..
add_action('init', 'process_post');
function process_post()
{
if (!is_admin()) {
echo "test";
}
}

This could be tricky simply because every theme differs with how the loop is displayed, however you could create a plugin to use the loop_start action, which is called before the first post of the standard WP loop:
add_action( 'loop_start', 'test_loop_start' );
function test_loop_start( $query ){
echo 'this is my inserted text';
}
Now using this would display it every single time the loop is called (whether on a page, a post, category page, search page, etc.), which you may not want.
add_action( 'loop_start', 'test_loop_start' );
function test_loop_start( $query ){
if(is_category() OR is_singular()) {
echo 'this is my inserted text';
}
}

Related

WooCommerce Registration Shortcode - Error messages problems

I am currently creating a widget to display the registration form on a WordPress website that uses WooCommerce. For now, I only have 3 basic fields which are email, password, repeat password. I'm looking forward to add more WooCommerce fields, but want to solve that problem before jumping to the next step.
I'm having some problems with the messages output (wrong password, account already exists, etc).
I searched on the web and there was no shortcode already built for WooCommerce registration, beside their registration page. So I went ahead and created a shortcode, with a template part.
function custom_register_shortcode( $atts, $content ){
global $woocommerce;
$form = load_template_part('framework/views/register-form');
return $form;
}
add_shortcode( 'register', 'custom_register_shortcode' );
This is a snippet I use to get the template part inside a variable, since the default function would "echo" the content instead of "returning" it.
function load_template_part($template_name, $part_name=null) {
ob_start();
get_template_part($template_name, $part_name);
$var = ob_get_contents();
ob_end_clean();
return $var;
}
So, the problem is, when I call woocommerce_show_messages or $woocommerce->show_messages(); from my template part, nothing is showing, or if it is, it shows at the top of the page.
I did try to put the calls inside my shortcode function:
function custom_register_shortcode( $atts, $content ){
global $woocommerce;
$woocommerce->show_messages();
$form = load_template_part('framework/views/register-form');
return $form;
}
add_shortcode( 'register', 'custom_register_shortcode' );
Doing so, the message output inside the <head> tag, which is not what I want.
I tried to do the same trick with ob_start(), ob_get_contents() and ob_clean() but nothing would show. The variable would be empty.
I also did try to hook the woocommerce_show_messages to an action as saw in the core:
add_action( 'woocommerce_before_shop_loop', 'woocommerce_show_messages', 10 );
For something like:
add_action( 'before_registration_form', 'woocommerce_show_messages');
And I added this in my template-part:
<?php do_action('before_registration_form'); ?>
But I still can't manage to get the error messages show inside the box. It would always be inserted in the <head>
I will share final solution when everything is done.
Thanks for your time,
Julien
I finally got this working by hooking a custom function to an action which is called in my header.php
I guess hooking functions inside template part does not work as intended.
In header.php, I got this:
do_action('theme_after_header');
And here's the hooked function. Works perfectly.
function theme_show_messages(){
woocommerce_show_messages();
}
add_action('theme_after_header', 'theme_show_messages');
However, I will look into 'unhooking' the original show message function since it might show twice. Need to test some more ;)
You can also just use the [woocommerce_messages] shortcode in your template where you want it displayed
Replying to a bit of an old question, but you can also try the following:
$message = apply_filters( 'woocommerce_my_account_message', '' );
if ( ! empty( $message ) ) {
wc_add_notice( $message );
}

How to get the whole html content when visiting a page of splited wordpress post

I am doing string conversion for every post/page in Wordpress. I add below function to template_redirect hook to get the whole html content and do the conversion.
function my_string_conversing() {
obstart( 'ob_callback' );
return;
}
function ob_callback( $buffer ) {
// doing conversion here...
return $buffer
}
add_action( 'template_redirect', 'my_string_conversion' );
These code works well for posts and pages, but if I split one post into multiple pages, then this will not work. It even don't run my_string_conversion function when click each page of a split post. How can I make it work? Thanks.
I found the solution, use add_action( 'template_redirect', 'my_string_conversion', -100 ); instead.

Wordpress Plugin: Show html only on standard page and not in admin area

I'm writing a plugin and I need to display a piece of text in the WP page, but not in the admin area. How can I do so?
I tried this in the construct:
add_action( 'init', array( $this, 'initPage' ) )
and then:
public function initPage() {
echo 'hello';
}
but the text is displayed also in the admin area. Is there a way to do this? It would be the opposite of the action admin_init I assume.
Proper way to handle it: is_admin()
http://codex.wordpress.org/Function_Reference/is_admin
if(is_admin()) { // do nothing } else {
// function you want to execute.
}
I solved this by adding it to a shortcode action. Like this:
add_shortcode( 'myPlugin', array( $this, 'shortcode' ) );
and:
public function shortcode( $atts ) {
return 'hello';
}
With the above code, 'hello' will only display on the front-end. Not sure if that's the cleaner way to do it, but does the job.
There is no "front-end-only" version of init, however you probably don't want to be doing any output at the init action anyway.
What exactly are you trying to do? Usually, you use an action hook for specific types of things, and causing output very early at something like "init" is rare and weird.

Redirect from add_menu_page

I have added a menu using add_menu_page which all works correctly, but when clicked I want this menu page to open the post editor for a particular post id.
As a proof of concept i have tried echoing a javascript redirect out into the do function like so...
// Load up the menu page
function register_availability_custom_menu_page() {
add_menu_page('custom menu title', 'Availability', 'add_users', 'options', 'options_do_page');
}
function options_do_page() {
echo "<script type=\"text/javascript\">";
echo "window.location = '/whatever_page.php';";
echo "</script>";
}
This approach does work but I was wondering if it is the best approach, is there a better way to redirect to the page I am after?
UPDATE
I have now also tried using wp_redirect with this code...
add_action( 'admin_menu' , 'admin_menu_new_items' );
function admin_menu_new_items() {
wp_redirect( home_url() );
exit;
}
This gives me a Headers already sent error, can anyone suggest where I am going wrong?
If I'm understanding this correctly, you don't need the redirect. Instead of using a $menu_slug in the function add_menu_page, put the address of the target page, e.g.:
$the_post_title = 'The Portfolio';
add_action( 'admin_menu', 'wpse_59050_add_menu' );
function wpse_59050_add_menu()
{
global $the_post_title;
$our_page = get_page_by_title( $the_post_title );
$settings_page = add_menu_page(
'Edit '.$our_page->post_title,
'Edit '.$our_page->post_title,
'add_users',
'/post.php?post='.$our_page->ID.'&action=edit',
'',
'',
2
);
}
This function is from the following WordPress Answer: Highlighting a Menu Item by Post Name. You'll need some jQuery to do the correct highlighting of this top level menu, check both my and TheDeadMedic answers in that Q.
This other one is useful too: Add highlighting to new Admin Dashboard Menu Item.
Recently did this for pootle page builder, and this AFAIK is the best way,
/**
* Redirecting from Page Builder > Add New page
* #since 0.1.0
*/
function add_new() {
global $pagenow;
if ( 'admin.php' == $pagenow && 'page_builder_add' == filter_input( INPUT_GET, 'page' ) ) {
header( 'Location: ' . admin_url( 'whatever-page.php' ) );
die();
}
}
add_action( 'admin_init', 'add_new' );
Replace page_builder_add with your page slug and admin_url( 'whatever-page.php' ) with url you wanna redirect to.
We always use scrutinizer-ci for best code practices and maintain code score greater than 9.5/10, so all code (Including this) is secure and optimized ;)
Lemme know how it works for ya.
Cheers
I found a 2-step solution that doesn't use JS/JQ.
Step 1:
Near the top of your script, put the following PHP to display CSS that hides your first page:
add_action('admin_head', 'hide_my_first_page');
function hide_my_first_page(){
echo '<style>
a[href="admin.php?page=admin_menu_slug"] + ul > li.wp-first-item{
display: none;
}
</style>';
}
Where admin_menu_slug is the 4th argument passed to add_menu_page();.
Step 2:
Take the function of the page you want to run and pass it as the 5th argument in add_menu_page();

Custom post type functions.php if statement on action

I am using developing a child theme for Woothemes' Canvas.
I am trying to use functions.php in the child theme to only use actions on my custom post type.
This code doesn't seem to be working:
add_action( 'woo_post_inside_after', 'my_geo_mashup' );
function my_geo_mashup() {
echo GeoMashup::map();
if ($post->post_type == 'listings') {
//My function
}
}
add_action( 'woo_post_inside_before', 'listings_nivo' );
function listings_nivo() {
echo do_shortcode('[nivo source="current-post" ]');
if ($post->post_type == 'listings') {
//My function
}
}
So, I'm unsure how to get the above to work properly and only show these items on the custom post type, or only for the custom post type template single-listings.php (as I only want the map and slider to show on the actual post, not on the blog page (archive.php)
Rather than making the entire $post object global, you can just make $post_type global instead. Ex below.
I'm not exactly sure where that function is being loaded, but make sure you hook somewhere within the post. If the action is before, as far as I know and from experience, the post variable will be null.
Just as a test, try running the action in wp_footer Ex. add_action( 'wp_footer', 'listings_nivo' );
See if that yeilds any results.
if echoing var_dump($post) is still null, well, not sure where to go from there.
So you can try running the below, then run the action in the appropriate place if it works:
function listings_nivo() {
echo do_shortcode('[nivo source="current-post" ]');
global $post_type;
// Diagnostic purposes
echo var_dump($post_type);
if ($post_type == 'listings') {
//My function
}
}
add_action( 'wp_footer', 'listings_nivo' );
Check your error log or turn wp_debug to true in your wp-config.php file if nothing else to see if anything else is going on.
Best of luck!
Inside your function, try adding global $post;. Then to see what you are getting with $post->post_type echo it out to the screen. As long as this gives you "listings", your code should work. If not, there's probably another issue at play.

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