We have created a site where a user enters a coupon code and it logs them in by creating a cookie by the name of couponid, then we save that cookie to the WooCommerce session because that cookie actually is the category id from which the products are displayed.
Now sometimes the products get displayed, sometimes not, and whenever our custom cookie is set in the browser and we go to /wp-admin to login, it gives us the following error:
Fatal error: Call to a member function get() on a non-object
The above error on the login screen of WordPress is coming from the following function in our functions.php file:
function gfc_insert_coupon_code_to_session(){
if(
is_user_logged_in()
|| ! array_key_exists( 'couponid', $_COOKIE )
|| WC()->session->get( 'couponid', 0 )
){
return;
}
$couponID = esc_attr( $_COOKIE['couponid'] );
if( $couponID ){
WC()->session->set( 'couponid', $couponID );
}
}
add_action( 'woocommerce_init', 'gfc_insert_coupon_code_to_session' );
Try to use:
WC()->session->set( 'couponid', $couponID );
Before calling:
WC()->session->get( 'couponid', 0 )
Test if your are on Back Office, WC()->session isn't set:
if( !is_admin() ) {
The if( !is_admin() ) { ... } fix
did the job for me. I changed the email template and if I tried to resend the email from the backend I received this error. So the admin fix was good.
Related
Someone has asked this question before, but I have tried the code and when I try to log back in via wp-admin I get unexpected error:
PHP Fatal error: Uncaught Error: Call to a member function set_is_vat_exempt() on null
Disable tax for non logged in users
Can someone help me? This is the code, I am not sure what bit is causing the error.
add_action( 'init', 'wc_tax_exempt_unlogged' );
function wc_tax_exempt_unlogged() {
// Getting user data for logged users
if( is_user_logged_in() ){
$current_user = wp_get_current_user();
$current_user_id = $current_user->ID;
$current_user_roles = $current_user->roles;
$bilal_id = 0;
}
// Exempting of VAT non logged users, customers and the main admin ID (you)
if( ! is_user_logged_in() || in_array( 'customer', $current_user_roles ) || $bilal_id == $current_user_id ){
WC()->customer->set_is_vat_exempt(true);
}
}
Thanks
I've found 3 codes here and tried them all. The codes are to redirect logged in users to home.com/shop
And they do work... However when I use it the error is triggered when order is being placed (Unexpected token < in JSON at position 0)
The code I'm using is
function add_login_check()
{
if ( is_user_logged_in() && is_page(40583) ) {
$url = add_query_arg(
'redirect_to',
get_permalink($pagid),
site_url()
);
wp_redirect(site_url('/shop'));
exit;
}
}
add_action('wp', 'add_login_check');
I guess you have this issue when you checkout.
Normally checkout process is ajax.
So you need to check whether current process is ajax or not.
Please try following code.
function add_login_check()
{
if ( is_user_logged_in() && is_page(40583) && !wp_doing_ajax() ) {
$url = add_query_arg(
'redirect_to',
get_permalink($pagid),
site_url()
);
wp_redirect(site_url('/shop'));
exit;
}
}
add_action('wp', 'add_login_check');
So, I would like to deny users the ability to access the wordpress dashboard. But, I want to allow users to use Front End PM which uses AJAX for sending messages between users.
How can I allow the PMs but deny all access to the dashboard?
The classic functions.php approach:
add_action( 'init', 'my_custom_dashboard_access_handler');
function my_custom_dashboard_access_handler() {
// Check if the current page is an admin page
// && and ensure that this is not an ajax call
if ( is_admin() && !( defined( 'DOING_AJAX' ) && DOING_AJAX ) ){
//Get all capabilities of the current user
$user = get_userdata( get_current_user_id() );
$caps = ( is_object( $user) ) ? array_keys($user->allcaps) : array();
//All capabilities/roles listed here are not able to see the dashboard
$block_access_to = array('subscriber', 'contributor', 'my-custom-role', 'my-custom-capability');
if(array_intersect($block_access_to, $caps)) {
wp_redirect( home_url() );
exit;
}
}
}
Unfortunately, this will redirect from AJAX... thoughts?
If I use User Role Editor... can users access the dashboard?
Essentially, only allow admins to access the dashboard... without limiting AJAX.
You can use
function sm_restrict_admin_with_redirect() {
if( defined('DOING_AJAX') && DOING_AJAX ) {
//Allow ajax calls
return;
}
if( ! current_user_can( "manage_options" ) ) {
//Redirect to main page if the user has no "manage_options" capability
wp_redirect( get_site_url() );
exit;
}
}
add_action( 'admin_init', 'sm_restrict_admin_with_redirect', 1 );
So there are people who access my website directly (not thru the tracking link I got with Voluum), thus they are not able to click the links and I can't see them as a part of my stats.
How can I redirect users who don't have a /?voluumdata=BASE64... URL parameter to a tracked URL, and to have a different redirect for each blog post?
I was testing and looking for a plugin / .htaccess trick for hours but nothing seemed to help.
Edit: I found a solution that I was certain is going to work but for some reason it didn't:
[insert_php]
if(empty($_GET['voluumdata']))
{
header('Location: REDIRECT_URL');
exit;
}
[/insert_php]
Also tried:
[insert_php]
if(!isset($_GET['voluumdata']))
{
header('Location: REDIRECT_URL');
exit;
}
[/insert_php]
Both just break the page loading proccess.
Unfortunately, I cannot understand what is the purpose of the code you have entered in your question. I mean that is not clear the reason you use the tags [insert_php].
A solution to your problem it can be the following.
function redirect_direct_access( ) {
// You may use the code:
//
// global $wp_query
//
// in order to determine in which pages you should run your
// redirection code. If you only check for the token existence
// then you will be faced with redirection loop. I don't explain in
// depth how to use the $wp_query as it is not part of your question
// but you always have the opportunity to check what is the contents
// of this variable using the code:
//
// echo "<pre>";
// print_r( $wp_query );
// echo "</pre>";
//
// This way you will be able to build your specific if statement
// for the page you like to test.
if (
! isset( $_GET[ 'voluumdata' ] ) ||
empty( $_GET[ 'voluumdata' ] )
) {
wp_redirect( home_url( '/page/to/redirect/' ) );
exit();
}
}
add_action( 'template_redirect', 'redirect_direct_access' );
You can find more information in the WordPress documentation related to the template_redirect hook.
Just in case anyone would face the same issue, #Merianos Nikos has given a half-answer and I mastered it into this:
function redirect_direct_access( ) {
$post_id = get_the_ID();
if (
$post_id == POST_ID &&
!isset( $_GET[ 'voluumdata' ] )
) {
wp_redirect( 'REDIRECT_URL' );
exit();
}
if (
$post_id == POST_ID &&
!isset( $_GET[ 'voluumdata' ] )
) {
wp_redirect( 'REDIRECT_URL' );
exit();
}
}
add_action( 'template_redirect', 'redirect_direct_access' );
This code checks if a user is logging in for the first time, that is after registration. I want to redirect him to a custom page if so. Otherwise, redirect him to the homepage or admin page.
function mylogin_redirect() {
global $user_ID;
if( $user_ID ) {
$user_info = get_userdata( $user_ID );
// If user_registered date/time is less than 48hrs from now
// Message will show for 48hrs after registration
if ( strtotime( $user_info->user_registered ) > ( time() - 172800 ) ) {
header("Location: http://example.com/custompage");
} elseif( current_user_can( 'manage_options' )) {
header("Location: http://example.com/wp-admin/");
} else {
header("Location: http://example.com/");
}
}
}
add_action('wp_head', 'mylogin_redirect');
But it doesn't work? My guess is it doesn't get hooked into wp_head...
I tried the following using login_redirect filter:
function mylogin_redirect($redirect_to, $url_redirect_to = '', $user = null) {
global $user_ID;
if( $user_ID ) {
$user_info = get_userdata( $user_ID );
// If user_registered date/time is less than 48hrs from now
// Message will show for 48hrs after registration
if ( strtotime( $user_info->user_registered ) > ( time() - 172800 ) ) {
return get_bloginfo('url') . "/custompage/";
} elseif( current_user_can( 'manage_options' )) {
return admin_url();
} else {
return get_bloginfo('url');
}
}
}
add_filter('login_redirect', 'mylogin_redirect');
Though it logs me in, it doesn't get me anywhere but to http://example.com/wp-login.php instead with a blank page.
UPDATE:
Ok, I don't know what's happening. Using the filter hook, I can get to the intended destination only after second login. Well not really second login but on the second click of the login button. I did it like so: enter credentials -> login -> (wrong page) -> hit back button -> enter credentials again -> login -> (correct page). Weird.
You need to adjust your filter call like so;
// filter name, callback, priority, accepted args
add_filter('login_redirect', 'mylogin_redirect', 10, 3);
Redirecting users on first login in WordPress: Cookie-based solution & User meta table based solution