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tommcfarlin/00-plugin-header.php Secret

Last active Oct 31, 2017
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[WordPress] Rapid Prototyping with WordPress: From Concept To Plugin
<?php
/**
* Three Recent Posts
*
* @package TRP
* @author Tom McFarlin
* @copyright 2017 Tom McFarlin
* @license MIT
*
* @wordpress-plugin
* Plugin Name: Three Recent Posts
* Plugin URI: https://tommcfarlin.com/rapid-prototyping/
* Description: Displays the three mot recent posts in your post editor screen.
* Version: 0.1.0
* Author: Tom McFarlin
* Author URI: https://tommcfarlin.com
* Text Domain: three-recent-posts
* License: MIT
* License URI: http://www.gnu.org/licenses/gpl-3.0.txt
*/
<?php
add_action( 'add_meta_boxes', 'three_recent_posts_meta_box' );
/**
* Registers the Meta Box with WordPress. Defines the ID, title, display function,
* and the post type on which it will live.
*/
function three_recent_posts_meta_box() {
add_meta_box(
'three-recent-posts', // Meta Box ID.
'Three Recent Posts', // Meta Box Title.
'three_recent_posts_display', // Function for rendering the meta box.
'post', // Post type on which this meta box will live.
'side' // Where the meta box will be displayed.
);
}
<?php
/**
* If there are posts to display, renders them in the metabox. Otherwise, displays
* a note that there are no posts to display.
*/
function three_recent_posts_display() {
$query = _three_recent_posts_get();
if ( $query->have_posts() ) {
_three_recent_posts_show_posts( $query );
} else {
_three_recent_posts_no_posts();
}
}
<?php
/**
* Defines a query for retrieving the three most recent posts and orders them by
* descing date (with the most recent being first).
*
* @return WP_Query $query The query for retrieving the three most recent posts.
*/
function _three_recent_posts_get() {
$args = array(
'post_type' => 'post',
'post_status' => 'publish',
'orderby' => 'date',
'order' => 'desc',
);
$query = new WP_Query( $args );
return $query;
}
<?php
/**
* Creates the content for the meta box if there are posts to display. Creates a notice
* that up to three posts will be displayed, then links to each of the three most recent
* post.
*
* @param WP_Query $query The query that contains results to render in the display.
*/
function _three_recent_posts_show_posts( $query ) {
// There may not always be three posts, so display a message explaining.
$html = '<p>';
$html .= '<span class="description">';
$html .= 'Displays up to the three most recent posts.';
$html .= '</span>';
$html .= '</p>';
// Create an ordered lists of the most recent posts.
$html .= '<ol>';
while ( $query->have_posts() ) {
$query->the_post();
$html .= '<li>';
$html .= '<a href="' . get_the_permalink() . '">';
$html .= get_the_title();
$html .= '</a>';
$html .= '</li>';
}
$html .= '</ol>';
echo $html;
}
<?php
/**
* Displays a message in the meta box if there are no recent posts.
*/
function _three_recent_posts_no_posts() {
$html .= '<span class="description">';
$html .= 'There are no recent posts.';
$html .= '</span>';
echo $html;
}
@paulo-carvajal

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@paulo-carvajal paulo-carvajal commented May 26, 2017

Hi, shouldn't your query args has a 'posts_per_page => 3' to limit it to three posts? Great compilation in any case.

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