I am writing a widget that list the headings in the post and then created hash links and edits the HTML to reflect that. I've got the list widget content figured out and I just need to edit the_content, i've tried to add a filter for the method that returns the updated code but it's not working.
What would be the best way to do this? My class is called post_headings_widget and the edited HTML content is stored within $this->the_content.
I was hoping I could do this within the widget class
public
function edited_content() {
return $this->the_content;
}
and then to edit the content output here
add_filter( 'the_content', [ 'post_headings_widget', 'edited_content' ] );
It calls the class method fine but i'm not sure exactly how it works so i'm guessing it called the method directly without calling the constructors etc?
I have also tried to just create a filter from within the widget() method but that did not work either, heres what I tried:
add_filter( 'the_content', function() {
return 'test';
} );
Any ideas on a solution?
You have to pass the_content as a parameter in your filter function/callback.
Check the Wordpress docs: https://codex.wordpress.org/Plugin_API/Filter_Reference/the_content
On widgets you need to bind on widget_text
add_filter('widget_text', 'se24265_my_function');
function se24265_my_function( $content )
{
# replace code here on widget $content
return $content;
}
Related
I am looking for a way to hide activity feed from the dashboard using a function. Does anyone know how to do this? I want to completely remove it. I want to achieve this without a plugin.
You can use remove_meta_box() like;
function remove_dashboard_widgets(){
remove_meta_box('dashboard_activity', 'dashboard', 'normal');
}
add_action('wp_dashboard_setup', 'remove_dashboard_widgets');
add above code to functions.php
Dashboard widgets and other meta boxes can also be removed by using the unset function. You might need to play around with the array keys, or use var_dump() to find the path for the widget you're looking for.
// Removes dashboard activity widget.
function remove_dashboard_activity_widget() {
global $wp_meta_boxes;
unset($wp_meta_boxes['dashboard']['normal']['core']['dashboard_activity']);
}
// Triggers dashboard widgets removal.
add_action('wp_dashboard_setup', 'remove_dashboard_activity_widget');
Additionally like Hüseyin BABAL mentioned, meta boxes can also be removed like this:
function remove_dashboard_widgets(){
remove_meta_box('dashboard_activity', 'dashboard', 'normal');
}
add_action('wp_dashboard_setup', 'remove_dashboard_widgets');
You'll either have to create a plugin or add a function to your theme functions.php file.
function remove_activity_dashboard_widget() {
remove_meta_box( 'dashboard_activity', 'dashboard', 'side' );
}
// Hook into the 'wp_dashboard_setup' action to register our function
add_action('wp_dashboard_setup', 'remove_activity_dashboard_widget' );
Here is the codex page on the subject:
http://codex.wordpress.org/Dashboard_Widgets_API#Advanced:_Removing_Dashboard_Widgets
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.
Recently I changed the theme of my site, and I found many of my articles use a shortcode like this
[box]
....
[/box]
My new theme does not support it and I actually don't need this shortcode to function. I thought I could just write a empty function for the shortcode in function.php, like this
function shortcode_box() {
return "";
}
add_shortcode('box', 'shortcode_box');
but it's not working.
Do you know any method to deactivate this short code?
So, you want to leave the [box] bits in the posts and/or pages, but have them not do anything? Try a shortcode that passes through the content unchanged:
function shortcode_box( $atts, $content = null ) {
return $content;
}
add_shortcode( 'box', 'shortcode_box' );
(For enclosing shortcodes, the return value of the function is used to replace the entire shortcode.)
Use remove_shortcode()
remove_shortcode('box');
Reference: http://codex.wordpress.org/Function_Reference/remove_shortcode
In Wordpress I have a page template called designers.php.
When loading, it reads the slug to get a uniqe ID, then calls the DB to retrieve designer information.
I want to use this information to alter the page title, using the designer name in the title tag.
I've tried using the add_filter in my designers.php file, but it's not working:
add_filter('wp_title', 'set_page_title');
function set_page_title($title) {
global $brand;
return 'Designer '.$brand['name'].' - '.get_bloginfo('name');
}
I'm, guessing the add_filter must either be located inside a plugin or in functions.php file.
How can I achieve what I'm trying to do?
UPDATE
The function is never fired as long as I use wp_title. If I change it to init (for testing), the function is fired.
So why does the add_filternor work for wp_title?
You are almost right. The filter must reside in function.php, and is called to modify the title. You can add the filter conditionally. Use this function is_page_template() to determine if wordpress is rendering your template
Try to modify your function like this:
add_filter('wp_title', 'set_page_title');
function set_page_title($title) {
global $brand;
if (is_page_template('designer.php'))
return 'Designer '.$brand['name'].' - '.get_bloginfo('name');
else
return $title;
}
First of all add_filter must either be located inside a plugin or in functions.php file.
Then, maybe you have to set the priority for the filter :
add_filter('wp_title', 'set_page_title',1);
function set_page_title() {
global $brand;
return 'Designer '.$brand['name'].' - '.get_bloginfo('name');
}
And check the <title> meta in your header.php theme.
<title><?php wp_title(); ?></title>
Hy.
So would anybody know how to write a function that would sanitize all links in a specific class that are entered through WYSISWYG editor?
I know about the wordpress in-built sanitize_title function, but I don't know how I could refer to those links(links in a specific class).
Any help much appreciated.
Why don't you use a filter function to filter the_content()?
In your functions.php file, include the filter hook:
add_filter ( 'the_content', 'your_sanitizer_function');
Then also in functions.php write the sanitizing function that will filter the normal output of the_content():
function your_sanitizer_function($content){
/* use some php here to change your content as you see fit...
for example, $content = str_replace('foo', 'bar', $content);
*/
return $content;
}