I’ve done several of them at this point, but here’s one we use for testimonials. I put the code in a plugin called nuggetweb-testimonials and I broke up the code in several files so it would be easier to maintain:
nuggetweb-testimonials.php
<?php
/*
Plugin Name: NuggetWeb Testimonials
Plugin URI: https://NuggetWeb.com
Description: Adds Testimonials post type to the NuggetWeb website.
Version: 1.0
Author: NuggetWeb.com
Author URI: https://nuggetweb.com
License: GPLv2
*/
function testimonial_post_init() {
$nw_post_type = array(
'labels' => array (
'name' => 'Testimonials',
'singular_name' => 'Testimonial',
'add_new_item' => 'Add New Testimonial',
'edit_item' => 'Edit Testimonial',
'new_item' => 'New Testimonial',
'view_item' => 'View Testimonial',
'search_items' => 'Search Testimonials',
'not_found' => 'No Testimonials found',
'not_found_in_trash' => 'No Testimonials found in trash',
),
'taxonomies' => array('category'),
'supports' =>
array (
'title' => 'title',
'editor' => 'editor',
'thumbnail' => 'thumbnail',
'excerpt' => 'excerpt',
//'trackbacks' => 'trackbacks',
'custom_fields' => 'custom-fields',
//'comments' => 'comments',
'revisions' => 'revisions',
'page_attributes' => 'page-attributes',
'post_formats' => 'post-formats',
),
'supports_reg_tax' =>
array (
'category' => '1',
'post_tag' => '1',
),
'capability_type' => 'post',
'map_meta_cap' => true,
'description' => 'Client Testimonials',
'menu_position' => 20,
'public' => true,
'hierarchical' => false,
'has_archive' => true,
'rewrite' =>
array (
'with_front' => true,
'feeds' => false,
'pages' => true,
'ep_mask' => 0,
),
'query_var' => true,
'can_export' => true,
'cf_columns' => NULL,
);
register_post_type( 'testimonial', $nw_post_type );
}
add_action( 'init', 'testimonial_post_init' );
function nuggetweb_remove_post_meta($post) {
// Remove catagory from single post template
if ( (get_post_type() == 'testimonial') && (is_single()) ) {
?>
<style>div.post-meta { display: none; }
<?php
}
}
add_action('wp_head', 'nuggetweb_remove_post_meta');
include 'nuggetweb-taxonomies.php';
include 'nuggetweb-custom-metabox.php';
/* include 'maps/nuggetweb-js.php';
include 'nuggetweb-maps.php'; */
?>
nuggetweb-taxonomies.php
<?php
// Add product types taxonomy
function nuggetweb_custom_taxonomy() {
// Taxonomies Export code for CustomPress
$labels = array(
'name' => 'Testimonial Types',
'singular_name' => 'Testimonial Type',
'search_items' => 'Search Testimonial Types',
'all_items' => 'All Testimonial Types',
'parent_item' => 'Parent Testimonial Type',
'parent_item_colon' => 'Parent Testimonial Type:',
'edit_item' => 'Edit Testimonial Type',
'update_item' => 'Update Testimonial Type',
'add_new_item' => 'Add New Testimonial Type',
'new_item_name' => 'New Testimonial Type',
'menu_name' => 'Testimonial Types',
'popular_items' => 'Popular Testimonial Types',
'add_or_remove_items' => 'Add or remove testimonial Types',
'separate_items_with_commas' => 'Separate testimonial types with commas',
'choose_from_most_used' => 'All testimonial Types',
);
$args = array(
'hierarchical' => true,
'labels' => $labels,
'show_ui' => true,
'show_admin_column' => true,
'query_var' => true,
'rewrite' => array( 'slug' => 'testimonial-types' ),
);
register_taxonomy( 'testimonial-types', array( 'testimonial' ), $args );
}
add_action( 'init', 'nuggetweb_custom_taxonomy', 0 );
?>
nuggetweb-custom-metabox.php
<?php
/**
* Adds a box to the main column on the post edit screens.
*/
include 'include/nuggetweb-add-custom-metabox.php';
/**
* HTML for metaboxes on post add/edit screen.
*/
include 'include/nuggetweb-show-custom-metabox.php';
/**
* Saves meta data
*/
include 'include/nuggetweb-save-custom-metabox.php';
?>
includes/nuggetweb-add-custom-metabox.php
<?php
function nuggetweb_add_custom_meta_box() {
$nuggetweb_arrays = nuggetweb_get_array();
foreach ($nuggetweb_arrays as $key => $arr ) {
nuggetweb_add_custom_meta_box_function($key,$arr[0],$arr[1]);
}
}
add_action( 'add_meta_boxes', 'nuggetweb_add_custom_meta_box' );
function nuggetweb_add_custom_meta_box_function($id, $title, $callback) {
$screen = 'testimonial';
add_meta_box(
$id,
$title,
$callback,
$screen, // $page
'normal', // $context
'high' // $priority
);
}
function nuggetweb_get_array() {
$nuggetweb_temp_array = array( 'nuggetweb_website_text' => array('Website URL','show_custom_meta_box_website'),
);
return $nuggetweb_temp_array;
}
?>
includes/nuggetweb-save-custom-metabox.php
<?php
/**
* When the post is saved, saves our custom data.
*
* @param int $post_id The ID of the post being saved.
*/
function nuggetweb_save_testimonial_data( $post_id ) {
/*
* We need to verify this came from our screen and with proper authorization,
* because the save_post action can be triggered at other times.
*/
// Check if our nonce is set.
if ( ! isset( $_POST['website_nonce'] ) ) {
return;
}
// Verify that the nonce is valid.
if ( ! wp_verify_nonce( $_POST['website_nonce'], 'nuggetweb_website_text' ) ) {
return;
}
// If this is an autosave, our form has not been submitted, so we don't want to do anything.
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) {
return;
}
// Check the user's permissions.
if ( isset( $_POST['post_type'] ) && 'page' == $_POST['post_type'] ) {
if ( ! current_user_can( 'edit_page', $post_id ) ) {
return;
}
} else {
if ( ! current_user_can( 'edit_post', $post_id ) ) {
return;
}
}
/* OK, it's safe for us to save the data now. */
$nuggetweb_arrays = nuggetweb_get_array();
foreach ($nuggetweb_arrays as $key => $arr ) {
//error_log("Saving \$key = $key, \$arr[1] = $arr[1], values = $_POST[$arr[1]]",0);
nuggetweb_add_custom_save_box_function($key,$post_id);
}
}
add_action( 'save_post', 'nuggetweb_save_testimonial_data' );
function nuggetweb_add_custom_save_box_function($nuggetweb_field,$post_id) {
if (! isset( $_POST[$nuggetweb_field] )) {
//return;
}
else {
// Sanitize user input.
$my_data = sanitize_text_field( $_POST[$nuggetweb_field] );
// Update the meta field in the database.
update_post_meta( $post_id, $nuggetweb_field, $my_data );
}
}
?>
includes/nuggetweb-show-custom-metabox.php
<?php
function show_custom_meta_box_website( $post ) {
// Add an nonce field so we can check for it later.
wp_nonce_field( 'nuggetweb_website_text', 'website_nonce' );
/*
* Use get_post_meta() to retrieve an existing value
* from the database and use the value for the form.
*/
$website = get_post_meta( $post->ID, 'nuggetweb_website_text', true );
echo '<label for="nuggetweb_website_text">';
_e( 'Address Line One', 'myplugin_textdomain' );
echo '</label> ';
echo '<input type="text" id="nuggetweb_website_text" name="nuggetweb_website_text" value="' . esc_attr( $website ) . '" size="25" />';
}
?>
I hope that helps!
