I try to implement a custom function/action after a new user profile has been created in WordPress. To test the code I try to write a text in a file as proof of function execution.
Here is the code that I have inserted at the end of the active theme's functions.php file
if ( ! function_exists( 'register_for_cmsa' ) ) :
function register_for_cmsa($user_id) {
// write in an external file
// writeLogWP($msg) is a function from a file I have included in index.php
writeLogWP("A new user is: " . $user_id);
}
add_action('user_register', 'register_for_cmsa');
endif;
Therefore, I added a new user through the admin panel. As soon as I validate the standard WP add user form (wp-admin/user-new.php) I get a blank page, meaning that the above code is in trouble. But the user is added in the database (it is visible in the users' list if I comment my function). The trouble here is when executing the writeLogWP("A new user is: " . $user_id) statement inside the register_for_cmsa() function.
I tried to see if the statement works outside of the function, while always inside the functions.php file. And I noticed that it writes the message to the external file when I navigate in the WP site, BUT it publishes blank page as soon as I get into the admin dashboard section.
My code is accepted in 'site' side but it is in error in the 'admin' one.
The code is however not executed in the 'site' side because the hook is not triggered. It is triggered only if I go to the 'wp-admin/user-new.php' but ... I can' test it, as per the above reason.
I am really confused, glad to have your comments and, why not, solution.
Thanks
The index.php is not loaded when accessing the WordPress admin, hence the writeLogWP function is not being called in that case. Moving it to functions.php should solve the issue.
Related
I am writing a wordpress plugin.
I have noticed in my debug log that i get a lot of PHP errors thrown because my shortcodes are being executed on the admin edit pages and therefore the relevant data is not available because the shortcode is loading dynamic data based upon the user front end. For example i have a function:
function myFunction_availability() {
if (is_admin()) return; // tried adding this but still get the issue
$product = $this->myFunction_get_current_product();
return "<div class='product-availability'>{$product->availability}</div>";
}
Works fine from the front end, but whenever i load the edit page from admin area i get in my log:
PHP Warning: Attempt to read property "availability" on null in /home/vagrant/yodahwp/wp-content/plugins/yodah/class.yodah.php on line 1602
As you can see from my code, i tried adding is_admin() to exit out of the function if viewing an admin page (i.e. the edit post page) but this does not seem to work.
Do any wordpress whizzes have an answer for this? I am a bit surprised that shortcodes are executed on the admin edit pages, or am I missing something?!
Thanks
This is an old question. Usually, this happens when using visual builders.
One solution is to write a condition to check if the product exists.
If using woocommerce you can try:
$product = wc_get_product( get_the_ID() );
if($product){
//continue
}
In your case, you should edit your myFunction_get_current_product() method and verify there if the product exists.
I am trying to create custom plugin in wordpress.
We want to create a case like if user is not logged in to the system then user should be redirected login page. I tried wp_redirect and wp_safe_redirect but it is not working. here is my code.
if (isset($_SESSION['game_login'])) {
//Do Something
}else{
wp_redirect('login');
exit():
}
I am getting this warning
Cannot modify header information - headers already sent by (output started at wp-includes/class.wp-styles.php:225) in wp-includes/pluggable.php on line 1216
can someone suggest me in this scenario?
You shouldn't just start output buffers wherever unless you're specifically delaying the final output, such as modifying content on the template_redirect, using add_shortcode, or any numerous scenarios where you intend to buffer the output.
The code in your example should be encapsulated in a function and hooked to one of WordPress' many Action Hooks. Typically this kind of function is added on the plugins_loaded or init hooks.
add_action( 'init', 'redirect_anonymous_users' );
function redirect_anonymous_users(){
if( isset( $_SESSION['game_login'] ) ){
// Do Something
} else {
wp_redirect('login');
exit();
}
}
There may be several reasons causing this issue.
Try this points and hope this may have a fix
Remove blank space from files that are showing error after php ?> tag at end of file, But in your case
it is from core file, So don't modify anything in terms of code just try to remove blank space at the
ending of those files. Also remove blank space from bottom of files
wp-config.php and functions.php
If the above point does not work add this code to your wp-config.php file
ob_start();
error_reporting(0);
In my plugin i have created a custom template that prints a requested sidebar. and for running the code of this template i assigned a custom page to it (by calling update_metadata) .
Is it a good idea for getting content of a specific sidebar into Ajax call ?
Now my problem is that WORDPRESS shows it in the dashboard and front page , and after searching i have not found any easy to understand solution for Hiding a page completely so only can be accessed by its id .
Can any one tell me how to do that ?
you are going about this the wrong way. You can create a function that can create anything that can be created on a wordpress page.
But if you really must you can create a page outside of the database, etc:
add_action('init', 'add_rewrite_rule');
function add_rewrite_rule(){
// add_rewrite_rule(REGEX url, location, priority (i.e. top is before other rewrite rules)
// I created a custom post type for this plugin called market -- replace post_type with whatever you want
//basically tell wordress to add a query var if sidebar is added to url.
add_rewrite_rule('^sidebar?','index.php?is_sidebar_page=1&post_type=market','top');
}
// register a query var
add_action('query_vars','market_set_query_var');
function market_set_query_var($vars) {
array_push($vars, 'is_sidebar_page');
return $vars;
}
// associate a template with your quer_var
add_filter('template_include', 'market_include_template', 1000, 1);
function market_include_template($template){
if(get_query_var('is_sidebar_page')){
$new_template = (theme or plugin path).'/pages/yourpage.php'; // change this path to your file
if(file_exists($new_template))
$template = $new_template;
}
return $template;
}
This will not be a page that will be in the admin section or in any query that relates to pages but someone could of course navigate to this page. But as i said above you would be better to create a function to create your sidebar. If you want a seperate file to handle the "view" you use require_once 'filename'; a file and keep your functions area free of html.
If you are creating functions in a wordpress plugin dont forget many functions may not be available until later in the load process. Use add_action() if you run into any undefined functions
edit:
you are loading wordpress before you get to the template so you have all the functions. (google wp load for more info) + get_header() / get_footer() will also load a few things like css, etc. I had a small typo in the code above, fixed that but basically what you are doing is telling wordpress if someone lands on www.example.com/sidebar to apply a query_var (rewrite rule). Wordpress will look up its saved vars (final function) and return the template assoc. The 2nd function just registers the var.
You also have wp_functions in any file you create and include in a plugin, etc hence why you can create a file that does exactly the same as this page.
I am creating a plugin for wordpress.I need database interaction.So i need to run some queries to create table.I want to run those queries in a php function.I need to run this function when this plugin will active.What hooks should i use for this purpose?? Now i am using this:
add_action( 'admin_menu', 'bs_check_database_creation' );
This is working fine so far.But i need appropriate hooks to run this function once when this plugin will activate.
Another queries : i want add a link of this plugin in header/footer/sidebar for end user to go to the plugin end user page.How should i do this?
Currently i've manually added a link for this in wordpress template page.
Thanks in advance
It depends when you want the hook to run, But I think that init or admin_init will be right for you becasue they are the earliest ones running respectively on front and back end.
EDIT : (After comment) The INIT and admin_init are ment to use whenever a plugin needs to RUN, and not on first activation (or install) . writing "I need to run this function when this plugin will active " is a bit confusing :-) active means when it start to run , or when it is actually ACTIVATED ?
If you need to run a function upon ACTIVATION , then it is a bit different..
register_activation_hook(__FILE__, 'o99_brsa_on_activate');
function o99_brsa_on_activate() {
// do your stuff on activation
}
About the links, I am not sure what you mean by end user page ... Do you mean action links ?
And what footer do you mean ? the Admin or the Front ? ( After answering those issues I can try and reply - Even if it is a material for another question .)
As for links in the header / footer . If ou are planning to host this plugin in the wordpress repository please know that it is somewhat against the terms ( unless you request specific permission from the user )
Anyhow , this will do :
function o99_add_to_footer() {
echo '<p>This is inserted at the bottom</p>';
}
add_action('wp_footer', ' o99_add_to_footer');
I am trying to trigger an even upon saving / updating a post in wordpress... see here:
add_action('save_post', 'generate_location');
function generate_location($post_id) {
echo "hey";
}
the problem is that its not working...
any ideas why? Syntax?
WordPress implements the Post/Redirect/Get pattern to avoid duplicate form submissions, so you're not going to see anything echo'd from a save_post callback.
Instead, you can do a wp_die( 'hey' ) instead, or log something to the database or file system.
I don't know whether you got this working, but I was having the same issue and discovered how to fix it!
in wp-includes/post.php on line 2940 (at the time of writing), this if/else is run whilst saving a post:
if ( !empty($page_template) && 'page' == $data['post_type'] ) {
You will notice that, if there is an error with the template the function stops there and save_post is never called.
In my case, the posts I was trying to save were imported from a pre-existing site. The new site had no page templates at all, so WP was still trying to save the page with the template from before, failing, and thus; save_post was never called.
I added
/* Template Name: Default Template */
to page.php, bulk edit, selected the template and saved. Remove the template name from page.php (as it shows up twice(, and now save_post is triggered every time.
This was the solution in my case anyway. i'm sure it'll affect someone else, somewhere down the line.