WordPress functions.php - Admin html injection and submitting forms - wordpress

I created a new navigation item on the left for my WP Admin:
add_action( 'admin_menu', 'addManagementMenuItem' );
function addManagementMenuItem(){
add_menu_page('Issue Management', 'Issue Management', 'manage_options', 'issue_management_slug', 'issue_management_building_function','',3);
}
function issue_management_building_function(){
if(!current_user_can('manage_options')){
}
else {
?>
...
...
So where I have the ellipsis ... is where my HTML begins and I write out some information to the page with various php echo statements to print some data out.
What I would like to do is now give the user the ability to enter in a filter and press submit. This would issue a POST to another page which would receive the post data, run some stuff, and spit out something else to the screen. I was just thinking this would take the user away from the WP-ADMIN area entirely (what I want to do is keep the user all within the right pane so it looks like it's natively happening on WordPress under my new admin area)
Something feels wrong about this approach above where I'm putting tons of html into functions.php - what is the way to create pages for a custom admin section where I can do things like post forms and go to multiple pages?
I was thinking the best solution would be to put an iframe in my injected HTML in functions.php, and then the pages can talk to themselves just like normal behind the scenes in WP-admin.
Could anyone point me in the right direction?
thanks!

Considering the user input/_POST features you'd like to add to this, you may want to consider building this functionality out as your own plugin. I've always kept custom functionality limited to non-user interaction in the functions.php file, but anything further would probably be better fit as it's own plugin.
For example, what if you created a plugin directory named nullhypothesis:
add_action( 'admin_menu', 'addManagementMenuItem' );
function addManagementMenuItem(){
add_menu_page('Issue Management', 'Issue Management', 'manage_options', 'nullhypothesis/file_to_do_your_bidding.php', 'issue_management_building_function','',3);
}
It's that fourth parameter that in the documentation mentions that you should include the menu_slug, but it doesn't necessarily need to only be a function - it can also be a file you define.
Then, in your file_to_do_your_bidding.php file (within your plugin), you can add whatever _POST functionality you'd need it to. It could also exist as the 'admin' page that the administrator/whoever interacts with.
Was that what you were looking for?

Related

Custom Plugin - Posting data from main page to another page within your plugin

I created a new custom plugin, that adds a new admin menu to show a list of events. When you click any given event, I want to send you to another page in my plugin that will then render information about this event. I can keep it simple and just use a query string parameter, so don't need to do a form POST, but I would be interested in that as well.
There are two pages:
/my-plugin/reservation-management.php
/my-plugin/reservation-management-details.php
My setup in the base page (reservation-management.php):
add_action( 'admin_menu', 'addReservationManagementMenuItem' );
function addReservationManagementMenuItem(){
add_menu_page('Reservation Management', 'Reservation Management', 'manage_options', 'reservation_management_slug', 'reservation_management_building_function','',3);
}
Inside my function to build out the first screen, I render some clickable links. To simplify:
function reservation_management_building_function(){
if(!current_user_can('manage_options')){
?>
<h2>Clickable Link</h2>
<?php echo("<a href='reservation-management-details.php?id=$id'>Event</a>"); ?>
<?php
}
}
?>
I just simplified the code, removed some loop logic, etc, but it works and renders out in a loop all of the events with a url of reservation-details.php?id=x where x is the unique post id of each event.
The thing is, this just sends me to a page not found. I even tried using things like get_admin_url() etc
I think I'm missing a fundamental step in how a custom plugin can post from one page to another all while still being within wp-admin.
How can I use an href to safely send the admin user to another admin page within my plugin directory?
Thanks!
Has the page been declared in the plugin? It sounds like you'd need to add a submenu page to your plugin as well.
Example (edited):
add_action( 'admin_menu', 'addReservationManagementMenuItem' );
function addReservationManagementMenuItem(){
add_menu_page('Reservation Management', 'Reservation Management', 'manage_options', 'reservation_management_slug', 'reservation_management_building_function','',3);
//add any relative submenu pages here
//you can have as many submenu pages as you need
//please keep in mind that add_submenu_page() requires a different set
//of parameters passed to it
//if you want the submenu page viewed, and your function exists on your
//plugin definition page
add_submenu_page('reservation-management-details.php', 'Reservation Management Details', 'Reservation Management Details', 'manage_options', 'reservation_management_details_slug');
//if you don't want your submenu page accessible in the submenu
//use null as the first parameter to remove it's inclusion from the submenu
//specify the php file used
add_submenu_page(null, 'Reservation Management Details', 'Reservation Management Details', 'manage_options', 'reservation-management-details.php');
}
In the above example, you'd be able to post to your new page in your plugin, because you've now defined it. But often times, I find that I don't want anyone being able to get to a page I've designated as '_POST' only, so my first parameter is then set to null.
Edit:
The only thing that I can't remember off the top of my head is what that POST url needs to be. Please let me know if you need assistance with that, and I'll work it out for you.
Please let me know if you have any questions.

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.

Hide Wordpress dashboard?

I'm new to wordpress and a bit confused with something. I'm trying to build a classified marketplace type of website for myself. I am NOT building this for a "client". I will probably be using a hack of several different plugins as my coding skills are not up to par. Eventually I will hopefully have lots of users who will be composed of buyers & sellers.
My question pertains to the WP dashboard. When buyers/sellers sign up for my site, will they be able to see the backend WP dashboard? I would prefer that they NOT be able to access a backend dashboard at all let alone a WP branded one. Is this possible? If so any clue as to how this might be accomplished?
thank you Brian
Normal users do not actually see the 'backend' WP dashboard. What they are seeing is a 'profile' type page meant for the original functionality of wordpres; being a blog.
If you do not want users to go to this page when they log-in, you can use a couple of hooks. Here is some code that redirects to the front page after logging-in and logging-out. This goes in your functions.php file.
add_action('login_form', 'ang_redirect_to_front_page');
add_action('wp_logout', 'go_home');
function ang_redirect_to_front_page() {
global $redirect_to;
if (!isset($_GET['redirect_to'])) {
$redirect_to = get_option('siteurl');
}
}
function go_home(){
wp_redirect( home_url() );
exit();
}
And, if your theme is still displaying the menu at the top of the screen that allows the users to go to this 'profile' area, you can go into your footer.php file and remove this:
<?php wp_footer();?>
However, if you do this, then you will not see it as the admin either.
WordPress is might not be the thing to use for that kind of website, even with a bunch of plugins. Read up on other content management systems just incase.
This link might answer your question:
http://buddypress.org/support/topic/how-to-prevent-non-admins-from-accessing-wp-admin-dashboard/
You can also add this to your theme's function.php file:
// DISABLE ADMIN BAR FOR ALL USERS
show_admin_bar( false );
If you are not too used to wordpress, use WOOCOMMERCE plugin. Its completely free and well documented

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