I try to create a theme in WordPress, and allow the user for some Page Templates, to load either a Slide-show in the header or to display the title.
Lets say, I have a template name called, Portfolio and another page template called Portfolio with Slide-show In Head.
Can I from within the portfolio.php and portfolio-with-slide.php to send variables in the header.php in order to decide what to display, or have I to create a second header for the second option and load the one need it into the template file with get_header('title') and get_header('slide')
What is the best approach ?
I personally use the second option - create a second header for the second option and load the one need it into the template file with get_header('title') and get_header('slide').
This is the best approach in terms of code maintainability.
A proper solution is to write a filter to replace the title:
function this_is_the_title_now( $title ) {
// can return un-altered $title or can use fancy logic here
return( "This is the new title." );
}
add_filter( 'the_title', 'this_is_the_title_now', 10, 2 );
This can be put into functions.php of your theme, or in page-whatever.php.
since wordpress 5.5 get_header has $args parameter ready to use:
https://developer.wordpress.org/reference/functions/get_header/
You can just put your arguments into get_header like this:
get_header( 'yourheadername', [ 'header_arg' => 'XYZ' ] ); (if you're using customized header.php file, in this case would it be: header-yourheadername.php)
or for default header.php file:
get_header( null, [ 'header_arg' => 'XYZ' ] );
then inside your header file you can use:
<?php echo $args['header_arg']; ?>
inside if or whatever you want :-)
You can use set_query_var to send variables to your header.php file, or any template part file.
For example, in your Portfolio Slideshow template (portfolio-with-slide.php) file:
//portfolio-with-slide.php
set_query_var('includeSlideshow', true);
Then in your header.php file (or a template part file):
//Header.php
$slideshowHeader = get_query_var('includeSlideShow');
//If variable exists and is boolean true
if($slideshowHeader !== null && $slideshowHeader === true) {
//code to include slideshow in header
}
Related
I must to add new options and functions in post pages in admin panel. I call a new function in edit-form-advanced.php and edded this function in template.php file. The question is this wrong? Becouse my function is in one file with functions on wordpress. Or maybe must be in other file? but where i must call it?
For wp-content part i know and i make a child theme of parent theme, but i do not know what to do when i must add code in wp-admin part.
example:
edit-form-advanced.php
do_custom_boxes( null, $post );
and in template.php
function do_custom_boxes( $screen, $object ) {
global $wpdb;
$appTable = $wpdb->prefix . "post_panel";
$query = $wpdb->prepare("SELECT * FROM $appTable WHERE post_id = ".$_GET['post']." ", $screen);
$applications = $wpdb->get_results($query);
......
}
Short answer: Yes, it's wrong to do so. Whenever you update your WordPress you'll loose all your changes.
WordPress allows you to hook into its code, modify its behavior and many things.
Please read about actions and filters.
Basically, Actions allow you to fire a function when something happens in WordPress.
For example:
<?php
function do_something_when_admin_pages_init() {
// Do something here
}
add_action('admin_init', 'do_something_when_admin_pages_init')
Filters allow you to modify data/output of another function. It's like it let you step in the middle, do something with the data and then continue.
Example from the WordPress page:
<?php
function wporg_filter_title($title) {
return 'The ' . $title . ' was filtered';
}
add_filter('the_title', 'wporg_filter_title');
This modifies the title before it's printed.
So with those two ways of 'hooking' into the WordPress code, you can write your code in your theme's functions.php file, or write a Plugin (it's up to you).
I am having a bit of trouble here understanding how to do the following. I have searched for weeks now but cannot seem to find what I am looking for.
I have a custom post type 'product' and want to change which template gets loaded for the single product page as well as the archive for the products. I am using the following code to load include and load templates.
add_filter('template_include', function() {
if (is_post_type_archive('product')) {
$templatefilename = 'archive-product.php';
$template = WPVS_PATH . 'templates/' . $templatefilename;
return $template;
}
if ('product' == get_post_type() ){
$templatefilename = 'single-product.php';
$template = WPVS_PATH . 'templates/' . $templatefilename;
return $template;
}
});
The problem I am having is that it replaces the current theme's template instead of just the inner part of the content and archive areas.
Here is what I want to achieve:
Create a custom post type 'product' in a plugin - DONE (Was kinda easy!)
When opening a single product only change the content part. - I can do this with the_content filter hook. Simple enough. Any other suggestions is welcome.
When I go to the archive view for the 'product' custom post type I don't want to have it load the theme's default archive (list) view but instead a grid view from my plugin which I cannot seem to get right. I only want to change the inner part of the template, not the whole page.
I have created this plugin a few weeks ago using only shortcodes which works good but want to see if I can do it without the use of shortcodes by means of creating the custom post type and changing the inner template parts of the current active theme.
Can anybody steer me into the right direction here?
If I create a theme I can do what I am looking for but I want to create this into a plugin instead without adding or making changes to the active theme. The plugin should handle what is needed.
The same issue is discussed here but what I want is to develop something that is theme independent. No changes should be made in theme files and no theme files should be copied to the plugin.
WP - Use file in plugin directory as custom Page Template?
Recently I also had the same problem. Here's how I worked it out.
template_include filter accepts a parameter which is the selected template that you want to override (this what you are missing in your code).
I don't know but sometimes the filter hook need higher priority to work like 9999. But first check if it work with default priority, if don't change it.
I assume your both archive and single product template both have include get_header() and get_footer() which can be used for default selected theme (Or if the theme has different setup, setup accordingly).
This is simplified code:
add_filter('template_include', function($default_template) {
if (is_post_type_archive('product')) {
$templatefilename = 'archive-product.php';
$template = WPVS_PATH . 'templates/' . $templatefilename;
$default_template = $template;
} else if ('product' == get_post_type() ) {
$templatefilename = 'single-product.php';
$template = WPVS_PATH . 'templates/' . $templatefilename;
$default_template = $template;
}
// Load new template also fallback if both condition fails load default
return $default_template;
}, 9999); // set priority, only if not worked with default one
The best option in this case is to provide a shortcode to the user. So they can place it on any page that they want (or that you auto generate). That way you will place your content inside their theme.
Something like this:
add_shortcode( 'slotsl-game', 'embed_game' );
/**
* Print the game
* #return false|string
*/
function embed_game(){
ob_start();
$game = get_post();
include_once SLOTSL_PLUGIN_DIR . 'templates/slotsl-single-game.php';
return ob_get_clean();
}
I'm trying to do a plugin that will change the behavior of a theme.
In the theme file I have a get_template_part('libs/templates/user_menu');
I want to make my plugin to "force" the get_template_part return another slug file (a path to a file in plugin folder).
So far this is my code inside the plugin:
function wpse21352_template_part_cb( $slug )
{
if(slug == 'user_menu') {
return WP_PLUGIN_URL.'/'.$slug;
} else {
return $slug;
}
}
do_action( "get_template_part_user_menu", 'user_menu' );
add_action( 'wpse21352_template_part_cb', 'get_template_part_user_menu', 10, 1 );
First of all, get_template_part does not return anything. It loads a file from your theme based on the parameters you pass to it. The function does not support filtering, which means you can not actually overwrite what is outputted by get_template_part.
The only thing the action get_template_part_[slug] allows you to do is output something before the theme file is loaded. For example, using
function myplugin_before_login( $slug, $name ) {
echo 'Example';
}
add_action( 'get_template_part_login', 'myplugin_before_login', 10, 2 );
would output "Example" before the loading the theme file when calling get_template_part( 'login' );.
Actions and filters
In general, however, I believe you might misunderstand how actions and filters work. The WordPress Codex offers extensive information on their use and usage.
In Drupal 7.
I want to themming /node/add/content-type by template file as page--node--add--content-type.tpl.php.
Please help me.
You need to use
page--node--add--content_type.tpl.php
instead of
page--node--add--content-type.tpl.php
underscore(_) instead of dash(-)
You will need to add the template as a suggestion in a preprocess function or you can create a custom theme function for the form, that will use the desired template. This is much similar to how it was done in Drupal 6, only you can do form_alters in your theme now.
you can add this function to your template.php:
you can print_r() your form and see what are the fields.
function yourThemeName_form_yourFormID_alter(&$form, &$form_state, $form_id) {
// Modification for the form with the given form ID goes here. For example, if
// FORM_ID is "user_register_form" this code would run only on the user
// registration form.
print_r($form);
}
You are adding tpl file for node form. For this you have to define tpl file name in template.php under your theme.
First create your_theme_name_theme()
Print content on tpl form.
Example: In below example contact_site_form is the form id of content type.
your_theme_name_theme() {
$items['contact_site_form'] = array(
'render element' => 'form',
'path' => drupal_get_path('theme', 'your_theme_name') . '/templates',
'template' => 'contact-site-form',
);
}
now create a file contact-site-form.tpl.php in your path location as specify above.
<?php echo render($form['name']); ?>
<?php echo render($form['mail']); ?>
.
.
.
<?php print drupal_render_children($form); ?>
You can render each element separately in given method.
I'm creating a new WP theme and I would like to allow the user to insert a divider in between paragraphs or images he/she is entering, for a post/page.
I want the output to be something like:
<div class="divider"></div>
But I don't want the user to have to enter HTML in the WYSIWYG editor. Is it possible to ask them to enter something like:
<-- break -->
and then translate that to the div markup on display?
Thanks.
Build a function in your theme's functions.php file like this:
function add_div( $content ) {
$content = str_replace( '<!-- break -->', '<div class="divider"></div>', $content );
return $content;
}
then add the following to the theme:
add_filter( "the_content", "add_div" );
The function uses PHP's string replace function to find the text you want your users to input and replace it with the text you want to render, the add_filter() function uses Wordpress's content filter to apply your function to the content of each post after it is read from the database, but before it is rendered to the browser.
This will work in PHP4 and up, which is still the official level of support for Wordpress.