In WordPress, you can do the following to edit the content of an article before the page is loaded:
add_filter('the_content', 'edit_content');
function edit_content($content) {
// edit $content
return $content;
}
How can I achieve the same thing but for comments?
You add a filter to the comment_text hook, similar to how you do it with the_content hook. This hook lets you change the comment text that is displayed using comment_text() in your template.
For example:
add_filter( 'comment_text', 'edit_comment_text', 99);
function edit_comment_text( $comment_text, $commentObject, $args ) {
// edit the text....
return $comment_text;
}
Note that you might need to set the priority in add_filter to a high number so that it runs after WP's own filters first - I used 99 above.
You can see in the WP Developer Code Reference for comment_text that the 3 parameters the filter gets are:
$comment_text (string) - Text of the current comment.
$commentObject (WP_Comment|null) - The comment object. Null if not found.
$args (array) - An array of arguments.
Related
I know there are other questions like this but didn't find a reliable answer. So:
First activate the thing (simplyfied code):
add_action( 'after_setup_theme', 'theme_setup' );
function theme_setup() {
add_theme_support('title-tag');
}
Second, delete title tag from header.php.
Third, on page templates, before calling get_header(), add something like this:
add_filter('wp_title', 'set_custom_title', 10, 3);
function set_custom_title($title, $sep, $seplocation){
return 'test';
}
Well, this is not working at all, in any template, being a page, an archive, a custom taxonomy or post type archive. No nothing. Wordpress is generating titles by itself.
Why? Am I doing something wrong? Note that this code once upon a time just worked: used in other sites/themes.
Is it maybe an issue of wp5.2.0?
So, thanks to #Vel, the answer is to re-add the title tag (even if in previous wp versions > don't know til what version you had to delete it form head instead).
Current working code for me:
//functions.php
add_action( 'after_setup_theme', 'theme_setup' );
function theme_setup() {
add_theme_support('title-tag');
}
//header.php
<title><?php wp_title('|', true, 'right'); ?> | <?php echo get_bloginfo('name') ?></title>
//page templates
$window_title = // do something
add_filter('wp_title', function($title, $sep, $seplocation) use($window_title){ return $window_title; }, 10, 3);
Try to use follows code -
add_filter('document_title_parts', function($titles){
return array('title' => 'Custom Title');
});
For anyone still having this issue of the wp_title filter not working, I'd suggest adding a higher priority value. The higher priority value will ensure that your filter is executed and not overriden by other filters in your theme or plugins installed. Please see below: (ref: https://developer.wordpress.org/reference/functions/add_filter/)
// the 9999999 priority value will force this filter to be executed closer to the end. A lower number corresponds with earlier execution
add_filter('wp_title', 'set_custom_title', 9999999, 3);
function set_custom_title($title, $sep, $seplocation){
return 'test';
}
In my case Yoast SEO was changing the way title was rendered and only the following worked:
function filter_lp_title($title) {
return 'New title';
}
add_filter( 'pre_get_document_title', 'filter_lp_title', 25 );
How can i disable the comments form for a specific category in Wordpress.
And i mean with that every post the user will publish it in this category will not has a comment form content.
Rather than doing this in functions.php, you could create two template files. The first template file is your standard theme template, the second would be identical, except it wouldn't contain the comment code section.
Simply name the template file that doesn't have the comment code block category_{id}.php and upload to your theme folder. The ID is the ID of the category you want to disable comments on.
More information on category specific templates here https://developer.wordpress.org/themes/basics/template-hierarchy/#category
More information about the comment template here https://codex.wordpress.org/Function_Reference/comments_template
If you still want to do this via functions.php, see this blog post http://spicemailer.com/wordpress/disable-hide-comments-posts-specific-categories/ which uses the following code snippet
add_action( 'the_post', 'st_check_for_closed' );
function st_check_for_closed()
{
global $post;
$my_post_cat = wp_get_post_categories($post->ID);
$disabled_cat = array( "1", "3"); // this is he array of disabled categories. Feel free to edit this line as per your needs.
$my_result = array_intersect($my_post_cat,$disabled_cat);
if (empty ( $my_result ) )
{
return;
}
else {
add_filter( 'comments_open', 'st_close_comments_on_category', 10, 2 );
add_action('wp_enqueue_scripts', 'st_deregister_reply_js');
}
}
function st_deregister_reply_js()
{
wp_deregister_script( 'comment-reply' );
}
function st_close_comments_on_category ($open, $post_id)
{
$open = false;
}
I am trying to create a function that will automatically add default text into the WordPress Post Editor for existing and new posts. I already found code to add_filter to default_content and that works well for new posts, but will not have any affect on existing, published posts/pages. The new default text could be added when I press "Update" to existing posts, that would be fine.
Here is what I have so far:
function add_before_content($content) {
$content = '<p>My default content.</p>';
return $content;
}
add_action('publish_post', 'add_before_content');
add_action('update_post', 'add_before_content');
add_filter('default_content', 'add_before_content');
Thanks in advance.
Filters and actions send different parameters to their functions, so you can't necessarily use the same function for different ones. Check the filter/action references for the right parameters for each.
Also, there is no update_post action. Maybe you wanted save_post.
But actions are probably not what you want to use anyway. They are good for doing something related to the subject of the action, but to deal with content you're better off using filters.
For example, something like the following might do what you want:
function add_before_content( $content ) {
$my_content = '<p>My default content.</p>';
if (substr($content, 0, strlen($my_content)) != $my_content) {
$content = $my_content . $content;
}
return $content;
}
add_filter( 'content_save_pre', 'add_before_content', 10, 1 );
I am just working on filter titles in pages and posts and everything works as expected but when I view the single.php whereas it shows the actual post as should be, the function hook filter i am working on inside functions.php of my plugin is filtering every title of each post of my blog, I was expecting to filter just the title of the current post:
add_filter( 'the_title', 'ta_modified_post_title');
function ta_modified_post_title ($title) {
if((in_the_loop())){
/**/
}
}
any help is grateful.
Thanks ;)
add_filter( 'the_title', 'ta_modified_post_title');
function ta_modified_post_title ($title) {
if((some condition true)){
$add_this = 'some string';
$new_title = $title.' '.$add_this;
return $new_title;
}
return $title;
}
when you view any post it is shown through single.php so every post becomes current post when you view it
I understand now that for the filter title hook it is the same viewing a single post from single.php than viewing the whole blog. would there be a way of filtering with a condition to only retrieve the title of the current post in single.php?, I did try "get_the_title(get_the_ID())" like this but obviously I cant nest it.
add_filter( 'the_title', 'ta_modified_post_title');
function ta_modified_post_title ($title) {
if((in_the_loop())){
if(is_single()){
$title=get_the_title(get_the_ID());
}
}
}
Hellow there all I tried searching everywhere but I coudn't just find it - may be because its a wiered requirement all I want to do is remove my Comment Text area in wordpress comment - I sucessfully removed URL website and name in the comment field by using following code
<?php
function remove_comment_fields($fields) {
unset($fields['url']);
unset($fields['author']);
unset($fields['email']);
return $fields;
}
add_filter('comment_form_default_fields','remove_comment_fields');
?>
But not able to remove the Text area - Actually you all will thought what will I do removing all this I am using a plugin which allow you to post images in your comment and the only option I want to give to user is post images via comment. please guide me.
Two options, the comment_form_defaults filter:
add_filter( 'comment_form_defaults', 'so16856397_comment_form_defaults', 10, 1 );
function so16856397_comment_form_defaults( $defaults )
{
$defaults['comment_field'] = '';
return $defaults;
}
or the comment_form_field_comment filter:
add_filter( 'comment_form_field_comment', 'so16856397_comment_form_field_comment', 10, 1 );
function so16856397_comment_form_field_comment( $field )
{
return '';
}
Check the comment_form source code.
You can also hide the textarea comment box by taking its id set to display:none from CSS
Just simple, add this code in functions.php file
function disable_comments_everywhere( $open, $post_id ) {
return false;
}
add_filter( 'comments_open', 'disable_comments_everywhere', 10 , 2 );