i'm working on a plugin that adds another parameter to feeds, i want to add a numberOfItems on the url and the feed returns that number of articles. I dont want to use the builtin option from WP Admin because the feed will be added on other websites with different number of items, it's a little bit complicated, the point is i need this implementation. i've added something like
function _my_custom_option( $option )
{
global $wp_query, $wp_rewrite;;
remove_filter( 'pre_option_posts_per_rss', '_my_custom_option' );
//$number = get_query_var('number');
$number = $wp_query->query_vars['numberOfItems'];
if(isset($number))
$option = $number;
else
$option = 10;
//$wp_rewrite->flush_rules();
add_filter( 'pre_option_posts_per_rss', '_my_custom_option' );
return $option;
}
add_filter( 'pre_option_posts_per_rss', '_my_custom_option' );
It seems that the feed is cached somehow and doesnt generate with the number of items, because when i add paged=2, it works. But if i change on page=2 numberOfItems with another number, it doesnt change. Plus, i added some junk text in wp-includes >feed-rss2.php just to verify if it cached or not. And it doesnt show after the first 2-3 page refreshes.
To be honest, i'm stuck, i don't know how to approach this, i've looked on the wordpress code and i dont see where the caching is done.
What about this?
function do_not_cache_feeds(&$feed) {
$feed->enable_cache(false);
}
add_action( 'wp_feed_options', 'do_not_cache_feeds' );
Related
I have the following code in my plugin file:
// SET UP REWITE RULES FOR LISTING PERMALINKS //
function my_rewrite_tags() {
add_rewrite_tag('%listingId%', '([^&]+)');
}
add_action('init', 'my_rewrite_tags', 10, 0);
function my_rewrite_rules() {
add_rewrite_rule('^listing/([^/]*)/?','index.php?pagename=listing&listingId=$matches[1]','top');
}
add_action('init', 'my_rewrite_rules', 10, 0);
This idea is that I have a page called "Listing" with the permalink "listing" and I want to be able to have the listing's ID number after it (i.e., /listing/12345/)
I then have a shortcode running on the "Listing" page
// SHORTCODE FOR SINGLE LISTING PAGE //
function my_single_listing(){
ob_start();
include('templates/single-listing.php');
return ob_get_clean();
}
add_shortcode('listing','my_single_listing');
...and the first thing it does is try to get that listing ID with the code:
$listingId = $wp_query->query_vars['listingId'];
I've done this with other plugins I've written in the past, but in this case it's decided to not work. In fact, if I enter the code:
print_r($wp_query);
I get absolutely nothing returned from it at all. (All other content on the page is displaying fine though.)
Any ideas?
Your issue with $wp_query being blank might be due to it not being accessed as a global variable. Prefacing it with a global declaration will allow it to access the global query:
global $wp_query;
print_r( $wp_query )
The issue with the listing ID not being picked up has to do with it not being declared as a possible custom query var. WordPress requires you to declare them before it loads them into the global wp_query for the page (presumably for security). $_GET was able to access them since that bypasses WordPress and just uses it with PHP.
function so_71685702_add_query_vars( $query_vars ) {
$query_vars[] = 'listingId';
return $qvars;
}
add_filter( 'query_vars', 'so_71685702_add_query_vars' );
Once you've got that, $wp_query->query_vars( 'listingid' ) should return a value.
Here's the query_vars hook information page, and the get_query_var hook information page which might be useful for further reading - might cover some things you'll run into based on the way you're setting up custom rewrites and query vars.
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 );
}
I have created a small wordpress plugin that displays a list of people in a page via shortcode.
When the user clicks on one of the names from the list, a query_var gets set and my plugin catches the $_GET with the specific id of the person the user just clicked. All very well until now.
My problem is that now I want to display a page with the details (for the clicked element) but I dont seem to be able to edit the content or post that gets to the page and it returns me to the page with the list of people.
My question is how do I edit the post? I have tried adding a add_filter('the_content','my_func') to this, but this does not work since this hook is probably already passed.
I can access the post directly via get_content() or get_post(), but I dont seem to be able to make the page populated new data.
In other words... this does nore seem to work
$fid = $_GET['fid'];
global $wpdb;
$sql = "select * from fighters where fighter_id = {$fid} limit 1";
$fighter = $wpdb->get_row($sql);
$html = $this->_getFighterPageLayout($fighter);
$post = get_post();
$post->post_content = $html;
$post->title = 'test';
$post->private = false;
// or even just global $content = $html;
What am I doing wrong and what ways do I have to edit/update the content/post?
You have to use the hooks of Wordpress to update the content. This works with the add_filter function
Try something like this, it should works
function mytheme_content_filter( $content ) {
// Do stuff to $content, which contains the_content()
// Then return it
return $content;
}
add_filter( 'the_content', 'mytheme_content_filter' );
I've been having a sever and completely unsolvable problem with pagination.
I did notice however this interesting point:
I search a keyword like cute:
?s=cute&submit=Search&post_type=image&paged=2
...is where the link leads to. "Paged=" gives 404 on random pages. But if I modify the URL to say page=
?s=cute&submit=Search&post_type=image&page=2
Every page destination works, bringing joy to my heart, but the pagination tab list always sticks at 0 (not reflecting current page).
I feel like I'm playing a "shell game" with code and settings, with wordpress bamboozling me.
Question reduces to:
How can I get &page= to be output in every case? Conversely, if &paged= should be the way it goes, how do I get it to work without 404s?!?!
This is a problem I've dealt with for almost 3 months now. People are shy to answer.
update:
Trying to deal with this paged variable in the URL which breaks pagination, I created a filter to simply replace it with page.
function symbiostock_pagination_mod( $args ){
$args = str_replace('paged=', 'page=', $args);
return $args;
}
add_filter( 'paginate_links', 'symbiostock_pagination_mod', 1 );
Would seem like a great idea! But then this happens with every new click:
?s=cute&post_type=image&page=2&page=2
?s=cute&post_type=image&page=2&page=3
So where is this being modded, and why?
update:
I'm not sure if I'm the only one that has ever had this problem, but I did solve it (at least for myself) you can see the solution below. Also thanks for the help given. :D
So here is what I came up with...we might as well call it a hack or work-around because its unknown if this was indeed a bug I'm dealing with (from wordpress itself) or just a perfectly hidden problem in my theme's code.
The below function filters the 'paginate_links()' function and achieves this:
I see paged variable generates 404 randomly on search pages, but works fine on archive and taxonomy pages. So, we check that. if_search(), we do our changes...
If this is a search, we get the would-be page # destination using regex (or simply string replace paged to page, depending on permalink structure. We use remove_query_var() to drop faulty variable, and add_query_var() to put the working one.
This is being done because in this strange case, page always generates proper results.
Then we return the edited destination link, and life is good.
Function below:
add_filter( 'paginate_links', 'my_search_pagination_mod', 1 );
function my_search_pagination_mod( $link )
{
if ( is_search() ) {
$pattern = '/page\/([0-9]+)\//';
if ( preg_match( $pattern, $link, $matches ) ) {
$number = $matches[ 1 ];
$link = remove_query_arg( 'paged' );
$link = add_query_arg( 'page', $number );
} else {
$link = str_replace( 'paged', 'page', $link );
}
}
return $link;
}
Also thanks to some help I got here with the regular expression: PHP Regular Expression Help: A quick way to extract the 2 from "page/2/"
In WordPress, I am aware that tld.com/author/username exists for authors, but I am looking for a public user profile page for non-authors. I want to setup a simplistic "favorite's list" for members on my site. Users will create an account, and add posts they like. They don't need access to wp-admin.
I'm looking for something simple like tld.com/user/username -- not /user/?uid=1. Nice and "pretty". Just like how WordPress handles /author/admin, or /author/username.
I would also like to keep /authors preserved so that's accessible too.
I have tried many plugins like WordPress-Users, but it's not a "pretty" URL, also have tried complicated plugins like Members, profile-builder, wp-user-frontend.
I found the answer to this from #bybloggers answer found here. https://wordpress.stackexchange.com/a/58793/12920
I modified his code very slightly to tailor it to my needs, but this is the code that worked for me and was exactly what I was looking for:
// Create the query var so that WP catches the custom /member/username url
function userpage_rewrite_add_var( $vars ) {
$vars[] = 'member';
return $vars;
}
add_filter( 'query_vars', 'userpage_rewrite_add_var' );
// Create the rewrites
function userpage_rewrite_rule() {
add_rewrite_tag( '%member%', '([^&]+)' );
add_rewrite_rule(
'^member/([^/]*)/?',
'index.php?member=$matches[1]',
'top'
);
}
add_action('init','userpage_rewrite_rule');
// Catch the URL and redirect it to a template file
function userpage_rewrite_catch() {
global $wp_query;
if ( array_key_exists( 'member', $wp_query->query_vars ) ) {
include (TEMPLATEPATH . '/user-profile.php');
exit;
}
}
add_action( 'template_redirect', 'userpage_rewrite_catch' );
After this was in my functions.php file, I had to re-save my Permalinks.
Sometimes re-saving the permalinks didn't finish the job 100% and browsing to www.mysite.com/member/username would 404, so I had to manually flush the rules by putting this into my functions.php and loading my site once. Then removing it so I don't run it every time the site loads, since that's unnecessary overhead.
// Code needed to finish the member page setup
function memberpage_rewrite() {
global $wp_rewrite;
$wp_rewrite->flush_rules();
}
add_action('init','author_rewrite');
I don't know if you will find this one, at least not for free. Have you checked out WPMU? I started writing a membership plugin a few months ago but never completed it and am now doing it in Symfony. Most WordPress membership plugins are either too complex to use or don't provide the features you need.
You should spec out what you need an get a local dveloper to build it for you, you might even be able to sell it if you do a good job.