How to call WordPress plugin function from custom page template? - wordpress

I have a custom WordPress plugin that handles authentication.
There's a function logTheUserIn() inside plugin-name/src/Classes/Auth.php.
I need this function to be run when a user hits a custom WordPress template page (page-authPortal.php), which has this code at the top:
include_once('wp-includes/pluggable.php');
include_once("wp-content/plugins/ad-auth-bridge/src/Classes/Auth.php");
print "test";
I created a WordPress page titled "authPortal" and it shows the 'test' text, so I know the custom page is being loaded and rendered. Now I just need to fire off logTheUserIn().
I have tried adding shortcodes and actions inside Auth.php:
class Auth {
public function InitHooks() {
add_shortcode ('authNow', 'logTheUserIn');
add_action ('authAction', 'logTheUserIn');
I've then tried to use the actual shortcode [authNow] inside the WordPress editor, I have also tried do_shortcode and do_action.
What am I missing here?
Thank you!

There is no need to include or require the plugin fields. They are initially loaded by WordPress.
First, in your template, make sure your plugin is active and the function/class is reachable:
if ( function_exists( 'logTheUserIn') ) {
logTheUserIn();
}
Then fire the function right within your template.
In your case, you might need to check if class_exists, then initialize the class

Related

Wordpress [ ] tags?

I'm very new at wordpress and I'm trying to understand a code from a friend. I went to his wordpress account and edit some test page. However, the page has code inside [ ] tags. How can I edit it?
Here is an example from the wordpress wdit page:
<p style="text-align: center;"><strong>Test- #1 Business Communication App For Project Management & Task Management</strong></p>
<strong>Important Notice:</strong> If you accessed ....</strong></em>, in order for your account to be properly updated.
[register_form]
How can I open/edit the [register_form] code?
This is a shortcode from a plugin or from your theme.
Edit
You can edit it in your theme. If the shortcode is from a plugin, you can overwrite it in your functions.php
function say(){
return "Hello World";
}
add_shortcode( 'register_form', 'say' );
are the tags used to call a function of some plugin that you have active. that specific tag I do not recognize what plugin is, I recommend Contact Form 7, it is easy to use.
If you want to create a PHP function and use it on your page, create a plugin and declare the call as you want. But! Be careful as an error however small will damage your page.
for add tag on wordpress, from your plugin.
function NAME_FUNCTION(){...}
add_shortcode( 'NAME_FUNCTION', 'NAME_TAG' );
and call
[NAME_TAG]

WordPress using different CSS - is this possible?

Bit is a basic question here but can someone confirm that this statement be confirmed: WordPress Pages (certain templates created within) can pull different CSS and JS?
Or - does WordPress only permit universal CSS + JS to be pulled across the entire site?
Thanks for clearing this up.
Depends on what plugin and themes you use. The WordPress/PHP functions wp_enqueue_style() and wp_enqueue_script() can be used literally by everyone (core, themes, plugins, you) to request WordPress to load styles or JavaSctript. You can combine this with WordPress functions to check whether the current page is something you want to filter for (post type, post, front-page, category archive, template, etc.). Here is an example to load a custom style if on front page :
if (is_front_page()) {
wp_enqueue_style('custom-frontpage', 'my/path/to/frontpage.css');
}
You will have to hook this piece of code to the wp_enqueue_script action so that WordPress executes it at the appropriate time. Here is an example using an anonymous function:
add_action('wp_enqueue_scripts', function() {
if (is_front_page())
wp_enqueue_style('custom-frontpage', 'my/path/to/frontpage.css');
});
You can also register your code as a "normal" function and pass the functions name to add_action() instead.
Edit: Enabling and disabling plugins is a bit more difficult, since you can never know how they implement their features without examining the source code. Here are my thoughts on this:
The plugin likely uses the above method (wp_enqueue_styles, wp_enqueue_scripts) to register it's styles and scripts. The plugin, since it assumes to be needed on all pages and posts, does this on every page without the conditional checking described earlier.
You could do one of the following to stop the plugin from doing this:
Identify the place where the plugin loads the styles and scripts and add the if-statement to only do so if the post-ID matches your desired post-ID. This method is bad since your changes are lost every time the plugin is updated.
Write a "counter plugin" (you could just add it to your theme or find a plugin that allowes you to add PHP to your page) that "dequeues" the style and script added by the plugin with inversed conditional tag
The counter-plugin approach would look as follows:
function custom_unregister_plugin() {
if (not the desired blog post) {
wp_dequeue_style('my-plugin-stylesheet-handle');
wp_dequeue_script('my-plugin-script-handle');
}
}
Make sure this function is executed after the enqueuing-code of your plugin by giving it a low priority in the same hook (999 is just an example, test it yourself):
add_action('wp_enqueue_scripts', 'custom_unregister_plugin', 999);
With wp_enqueue_style() you can add stylesheet (https://developer.wordpress.org/reference/functions/wp_enqueue_style/)
You can use it after detecting which template is used
function enqueue_custom_stylesheet() {
if(get_page_template() == 'contact.php')
wp_enqueue_style( 'contact-style', get_template_directory_uri().'/contact.css' );
}
add_action( 'wp_enqueue_scripts', 'enqueue_custom_stylesheet' );
You can use wp_enqueue_style for your CSS, wp_enqueue_script for your JS, wp_localize_script to pass variables from PHP to JS.
You can call these with hooks like:
funtion enqueue_my_stuff()
{
// your enqueue function calls
}
add_action('wp_enqueue_scripts','enqueue_my_stuff'); //front end
add_action('admin_enqueue_scripts','enqueue_my_stuff'); //admin panel
add_action('login_enqueue_scripts','enqueue_my_stuff'); //login screen

how to hide a page from being seen in wordpress backend and frontend

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.

is it possible to make a custom page in buddypress

is it possible to make a custom page for buddypress with its url like this: http://domain.com/custom_page ? I found some answers by searching google but it does not create a custom page. i have a code here that i found in one of the blogs.
define('BP_FUN_SLUG','fun');
function bp_show_fun_page() {
global $bp, $current_blog;
if ( $bp->current_component == BP_FUN_SLUG && $bp->current_action == '' ) {
// The first variable here must match the name of your template file below
bp_core_load_template( 'fun', true );
}
}
add_action( 'wp', 'bp_show_fun_page', 2 );
but this code does not work... Is anyone there knows how to do this? thanks
Yes, it is possible to create a new page in Buddypress.
In Buddypress you have to create a new plugin or create a function in the theme functions file.
For creating first you have to add a new page link in navigation menu using bp_core_new_nav_item() function (You have created sub menu for that use bp_core_new_subnav_item() function).
Above two functions pass the screen function name as a parameter this name use when you click the custom page link call to this screen function. Create new function in your functions.php file same as screen function name. In this function call to your custom template file using bp_core_load_template() function.
Then finish, add more logic to create a new function and call it in the template file.
Another approach is to add a plugin that allows php in posts. For example http://wordpress.org/extend/plugins/allow-php-in-posts-and-pages/
Then create a page and add this to it:
[php] locate_template( array( 'some-template-folder/something.php' ), true ); [/php]
In case someone is wondering how to integrate custom pages into user profile (so that it looks like activity stream, groups etc.).
One thing i did recently was define a plugin (functions.php would work as well), register a custom slug with bp_core_new_nav_item or bp_core_nav_subnav_item and loaded member/single/plugins.php template in the handlers for those slugs. There are a bunch of actions on that page that you can hook into like bp_template_title and bp_template_content.
This can give you a whole lot of control.
Here's a link to the source of plugins.php: http://phpxref.ftwr.co.uk/buddypress/nav.html?readme.txt.source.html

How do I create a custom WordPress page?

I want my WordPress blog to have a page called music. On that page I will query the DB for posts with the category music and then change around the look and feel of the posts. So I can't just put a link to /categories/music/ because I want to do custom work on the posts.
Should I put this code in a separate php file and link to it? I think I may lose access to all the nice WordPress API calls if I do that.
I was thinking about using a filter, but I am not sure which one to use. I was thinking something like the following except the_title has not been grabbed yet so I cannot check the title.
function show_music(){
if( is_page() && the_title('','',false) == 'music' ){
echo "got here";
}
}
add_filter('pre_get_posts', 'show_portfolio');
How would you go about this?
You need to put the below code in the file, and then put the file in the Theme folder. Then you can create a page using Wordpress pages and select a page template with the name you put in this comment:
/*
Template Name: Something Goes Here
*/
You need to create custom page within your theme. If you dont have idea how to create custme page or template page in WordPress theme then view my easy tutorial How to create template page in WordPress

Resources