I am trying to remove the default comments/reviews from the WooCommerce product page and replace them with my own.
Removing them was easy as removing them from the hooks that call them. However putting them back is more difficult than I thought it would be. I am actually removing the tabs as well - just want the reviews at the bottom of the page.
In the woocommerce_after_single_product_summary hook I am calling a function that calls the wp_list_comments function. What I find odd (or simply do not understand why) is that the wp_list_comments function only retrieves the comments if I add the per_page argument.
I have tested it with a custom callback (that only var_dumps the comment object) and the woocommerce-comments callback. Both work as long as the 'per_page' argument is supplied.
Is this normal behaviour? When I look at the woocommerce template single-product-reviews.php I can see that they are calling wp_list_comments as such....
<?php wp_list_comments( apply_filters( 'woocommerce_product_review_list_args', array( 'callback' => 'woocommerce_comments' ) ) ); ?>
They are only passing the callback argument (I cannot find any filters that are adding any addtional arguments)
Should wp_list_comments be able to be called without arguments and retrieve the comments/reviews for the current product?
Related
I have been trying to associate CUSTOM data to each of my WP POSTS using the following piece of code :
if($condition === true){
if ( ! update_post_meta ($post_id, '_someData', $someVariable) ) {
add_post_meta($post_id, '_someData', $someVariable);
}
}
However, seems like the META VALUE is RESET to default i.e. Zero OR Blank. Our WordPress website has around 40 plugins, and I think one of these WordPress plugins, is coming in my way of doing things. All of my logic works fine, on a demo WordPres website. Is there a way for me to have total control to set the META Value for a given POST ? Also, is there a way where I can be notified that the META Key is about to change and then I can decide whether OR not to change the Meta Value ?
Any pointers or reference URL's can be of great help. Thanks !
You only need to call update_post_meta in either scenario. Calling add_post_meta() is not necessary and could be causing this problem.
From the codex:
The function update_post_meta() updates the value of an existing meta key (custom field) for the specified post.
This may be used in place of add_post_meta() function. The first thing this function will do is make sure that $meta_key already exists on $post_id. If it does not, add_post_meta($post_id, $meta_key, $meta_value) is called instead and its result is returned.
I am having trouble debugging a situation, and I think some better background information on how these systems work would be very helpful. I know that the use of the function query_posts() is strongly discouraged. But let's just assume that there is nothing I can do to remove it from the code. Specifically the query is changed to pull posts of a post_type (a post_type specific to the theme I am using). This is what the query looks like after it has been changed:
posts_per_page=10&paged=0&post_type=project
Then the loop begins and it can successfully grab the titles for each post. But when I call get_the_category() it returns an empty array, even though all of the posts have categories. I verified that it was an empty array with var_dump.
I am do not have a super strong understanding of how these systems work, so the emphasis on not using query_posts has me worried. Is there any possible interaction between query_posts and get_the_category() that could cause it to not work correctly?
Why not using WP_Query()? Im not sure it is cause by query_posts, but query_posts() alters Wordpress Main Loop (global $wp_query).
You can use the WP_Query method like this, by replacing with your query_posts loop
$newLoop = new WP_Query('posts_per_page=10&paged=0&post_type=project');
if ( $newLoop->has_posts() ) {
while ( $newLoop->has_posts() ) { $newLoop->the_post();
the_title(); // Your title
var_dump ( get_the_category() ); // this should not be empty if category assigned to current post
}
}
If you still want to go with query_posts try one of the methods below:
Try passing post id manually:
get_the_category( get_the_ID() ); // Must be in loop
Or try adding this:
// after endwhile of query_posts
wp_reset_query();
I am creating a blog using only Wordpress's backend. I have found functions to get latest posts (wp_get_recent_posts) and all the required data I need. I do this by including wp-load so I have access to WP's functions.
However I cannot find anything that allows me to perform a search outside of Wordpress's theming loops as I have for the rest of the data.
I was hoping there was a search function where I can pass it a search query that could be in title, body content or tag name.
Am I missing something blindingly obvious in the documentation, there seems to be a function for everything else I need outside of WP's "loop".
Does that work for you?
// query for a given term ("search_term")
$search_query = new WP_Query();
$search_posts = $search_query->query('s=search_term');
Source
Answered by sanchothefat:
You can use get_posts() with a search parameter:
$results = get_posts( array( 's' => 'search term' ) );
https://wordpress.stackexchange.com/questions/74763/search-outside-of-the-loop/74766#74766
I've created a calendar plugin and now I want to show a event list in one of my templates.
The code I'm using now, is this:
include_once(WP_CAL_PLUGIN_DIR.'eventcal.class.php');
$calendar = new EventCalendar();
$events = $calendar->getMultipleEvents('5');
(...)
<table>
<?php foreach($events as $event) : ?>
<tr>
<td><span><?php echo $calendar->formatEventTime($event->startTime,'dm'); ?></span></td>
<td><span><?php echo $calendar->formatEventTime($event->startTime,'time'); ?></span></td>
<td><?php echo $event->name; ?></td>
</tr>
<?php endforeach; ?>
</table>
Is there a way I can call functions within my plugin without having to include the WP plugin and creating a new class instance?
In order to execute shortcode inside a template, use the function do_shortcode('[my-shortcode-handle]'). Your shortcode needs to be registered as like normal (see WordPress codex on shortcode API) before you can use this in the template. Any attributes, inside content, etc. should be in there as well.
echo do_shortcode( '[my-shortcode foo="bar"]Shortcode content[/my-shortcode]' );
Also, remember to echo the return (or at least assign it to a variable), since it only returns the shortcode's output.
From: http://codex.wordpress.org/Plugin_API
Hooks are provided by WordPress to allow your plugin to 'hook into' the rest of WordPress; that is, to call functions in your plugin at specific times, and thereby set your plugin in motion. There are two kinds of hooks:
Actions: Actions are the hooks that the WordPress core launches at specific points during execution, or when specific events occur. Your plugin can specify that one or more of its PHP functions are executed at these points, using the Action API.
Filters: Filters are the hooks that WordPress launches to modify text of various types before adding it to the database or sending it to the browser screen. Your plugin can specify that one or more of its PHP functions is executed to modify specific types of text at these times, using the Filter API.
Actions
Actions are triggered by specific events that take place in WordPress, such as publishing a post, changing themes, or displaying a page of the admin panel. Your plugin can respond to the event by executing a PHP function, which might do one or more of the following:
* Modify database data
* Send an email message
* Modify what is displayed in the browser screen (admin or end-user)
The basic steps to making this happen (described in more detail below) are:
Create the PHP function that should execute when the event occurs, in your plugin file.
Hook to the action in WordPress, by calling add_action()
Put your PHP function in a plugin file, and activate it.
EXAMPLE:
function email_friends($post_ID) {
$friends = 'bob#example.org,susie#example.org';
mail($friends, "sally's blog updated",
'I just put something on my blog: http://blog.example.com');
return $post_ID;
}
Hook to WordPress
After your function is defined, the next step is to "hook" or register it with WordPress. To do this, call add_action() in the global execution space of your plugin file:
add_action ( 'hook_name', 'your_function_name', [priority], [accepted_args] );
where:
hook_name
The name of an action hook provided by WordPress, that tells what event your function should be associated with.
your_function_name
The name of the function that you want to be executed following the event specified by hook_name. This can be a standard php function, a function present in the WordPress core, or a function defined by you in the plugin file (such as 'email_friends' defined above).
priority
An optional integer argument that can be used to specify the order in which the functions associated with a particular action are executed (default: 10). Lower numbers correspond with earlier execution, and functions with the same priority are executed in the order in which they were added to the action.
accepted_args
An optional integer argument defining how many arguments your function can accept (default 1), useful because some hooks can pass more than one argument to your function. This parameter is new in release 1.5.1.
In the example above, we would put the following line in the plugin file:
add_action ( 'publish_post', 'email_friends' );
I'm trying to filter ALL widget output through a simple filter, but can't find any hooks and was hoping to be pointed in the right direction. Or possibly my efforts are not even possible?
My simple filter is something like this:
function clean_widget_output( $input ) {
return str_replace( array( "\t", "\n", "\r" ), '', $input );
}
add_[FILTER OR ACTION]( 'need_a_hook', 'clean_widget_output', 99 );
Any ideas? I'm pretty new to PHP, but I can get around.
This was borne out of the need/desire to clean the god-awful HTML spewed by WordPress' widgets. I love what they do, but some of the output makes me cry.
The short answer is output buffering because I couldn't find any widget or sidebar hooks.
The long answer is:
function tidy_sidebar( $sidebar_name_or_id )
{
ob_start();
$bool = dynamic_sidebar( $sidebar_name_or_id);
if ( $bool )
{
$str = ob_get_contents();
$str = 'do cleanup stuff...';
}
else
{
$str = '';
}
ob_end_clean();
return $str;
}
Then call echo tidy_sidebar( 'sidebar-name-or-id' ); from your theme.
I had a similar issue and after looking through Adam Brown's list of all WordPress filter hooks, found that the hook I needed does exist (widget_title, as pxl mentions), but that there is no hook to get all widget output. I thought I'd elaborate on the solution that worked for me.
Theoretically, the widget_title hook should affect all widgets on your blog, but I'm sure some 3rd party widgets neglect to include the necessary line of code to apply any title filters, so it's not foolproof. It worked for me, however, and it can be used to apply custom 'shortcode' (more accurately, in this case, 'longcode') or syntaxes to your widget titles. For example, I wanted to occasionally include html code in my widget titles, but by default, all html is stripped out. So, in order to be able to add things like <em> tags to text in some of my titles, I chose a custom syntax: [[ instead of < & ]] instead of > (for ex, [[em]] and [[/em]]) and then created a function in my theme's functions.php file to process that custom syntax and replace it with the html equivalent:
function parse_html_widget_title( $text ) {
return str_replace(array('[[', ']]'), array('<', '>'), $text);
}
Then I added a line below it to add the function as a filter:
add_filter('widget_title', 'parse_html_widget_title', 11); // 11 is one above the default priority of 10, meaning it will occur after any other default widget_title filters
The add_filter / apply_filter functionality automatically passes the content being filtered as the first parameter to the function specified as the filter, so that's all you need to do.
In order to do something similar for the main output of the widget, you would need to look at all your widgets to see what hook they use and verify that they have a filter for their main output, than use add_filter() for each hook you find with your custom callback function (for example, it's widget_text for the Text widget output, or get_search_form for the search form [you can see it in wp-includes/general-template.php, at the get_search_form() function]). The problem is that some of the dynamically generated widgets don't have hooks (like the Meta widget), which is why the output buffering solution Jeff provides is the most versatile, though not ideal, solution.
there are lots of hooks for wordpress widgets that aren't documented. The wordpress codex doesn't list them, for whichever reason (such as these hooks may change in the future and will break unexpectedly with new updates and versions)... so use these with extreme caution.
to find out what they are, there are at least 2 places to look:
<wordpress install directory>/wp-includes/default-filters.php
<wordpress install directory>/wp-includes/default-widgets.php
contained in those two files is a pretty good listing of all the hooks wordpress uses.
An example would be a filter for widgets is widget_title
again, use these with caution, they're not guaranteed to work past the specific version of the code you're looking at.
I'm not sure when they introduced the widget_text filter, maybe they didn't have it in '09 when this question was originally asked, but since it's there now, and for the sake of anyone that gets this stackoverflow like I did from google and just happens to read far enough down to see this answer, it's now actually quite simple:
function my_widget_filter( $content )
{
// manipulate $content as you see fit
return $content;
}
add_filter( 'widget_text', 'my_widget_filter', 99 );
Also maybe check out the dynamic_sidebar_params filter --
Another link --