I am creating WordPress plugin and I want to be able to provide an interface (to the programmer that installs the plugin) through some registered function in WP that when called in the template prints a HTML chunk inside the page.
What's the best way of doing it? I don't want to use echo to print large chunk of HTML from inside the function. The ideal would be having a .html file or .php file with the HTML code in it and my plugin function would simply load it when the function is called.
Does that make sense? Should I be using widgets API for this instead?
Thank you.
Something like this, which I use for an rss feed. if you remove the is feed conditional clause you should be able to just add content.
/*-----------*/
/* Add custom feed content footer
/*-----------*/
function add_feed_content($content) {
if(is_feed()) {
$content .= '<p>*This post was first published on...*</p>';
$content .= '<footer><p>*Add some Content here*</p></footer>';
}
return $content;
}
add_filter('the_excerpt_rss', 'add_feed_content');
add_filter('the_content', 'add_feed_content');
You might also need to create an admin page with a form to store the content and retrieve it if it likely to change, or just hard-code it here if it is a one-off.
Related
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
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.
In Wordpress, I have a page template that uses a specific JS file and CSS file that no other part of the site uses. On this specific template page, is there any way to add these items to the head, before wp_head is called?
I realize I could use is_page_template() in a conditional but my head file is getting out of control.
If you look here http://codex.wordpress.org/Plugin_API/Action_Reference you can see that the hook called just before wp_head is get_header
So what you need to do is: add an action called on that hook, test if you are on the page that you want and if you are add the script and the css
This would happen in a plugin (not in the theme files like header.php or functions.php) and it would look something like this:
// call the function that adds your current script
add_action('get_header', 'add_that_script');
function add_that_script()
{
if (is_page(SOME_PAGE_IDENTIFIER)) // this is the page you need; check http://codex.wordpress.org/Function_Reference/is_page on how to use this function; you can provide as a parameter the id, title, name or an array..
{
wp_register_script( 'mycustomscript', 'http://www.example.com/script.css'); // register your script
wp_enqueue_script( 'mycustomscript' ); // enqueue it to be added in the head section
wp_register_style( 'mycustomstyle', 'http://www.example.com/example.css'); // register your css
wp_enqueue_style( 'mycustomstyle' ); // enqueue it to be added in the head section
}
}
You just need to replace the id for your page and the urls to the js file and to the css. Sure, maybe you want to test some other way if you are on the right page, but I think that this shows the idea.
What about using?
if(is_page('Your Page Name')):
// do something for me
endif;
i believe u can do it from functions.php. it's tidier if you do it from there. i suggest, unless that js file is really big, you are better off including it everywhere and use wp-minify to group all js files together into one.
I want to display custom html code when a post is rendered (so not when is inserted into the database).
I currently do this with add_filter('the_content', 'my_custom_method'). The only problem is that I want this do be displayed only inside the post (when is viewed in its own page), not when all posts are rendered .
I banged my head against the wall, but couldn't find any method to tell me if i'm currently inside an individual post or not (this has to work for every url rewriting possible, so i can't rely on url)
Is there such a method? I believe it should be, but i can't find it. Thanks.
the function for checking if the post is in its own page is is_single()
add_filter('the_content', 'my_custom_method');
function my_custom_method(){
if(is_single()){
//code for your custom html code
}
}
the function is_single() checks if the page being rendered is a single page or not.
The easiest way to do this would be to modify your templates. Wordpress template sets should have a file named single.php (inside wp-content/themes/<theme name>). This is the page that gets rendered when you are viewing the page for a single post.
You could edit this file and insert whatever you needed to for the posts there.
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