WordPress Plugin WP Sub Post

< ?php
/*
Plugin Name: WP Sub Post
Plugin URI: http://wordpress.org/#
Description: You can make a post is a child of another post.
Author: Takien
Version: 0.1 Alpha
Author URI: /
*/
 
////////////////////////////
 
class Walker_PostDropdown extends Walker {
 
var $tree_type = 'post';
 
var $db_fields = array ('parent' => 'post_parent', 'id' => 'ID');
 
function start_el(&$output, $page, $depth, $args) {
$pad = str_repeat(' ', $depth * 3);
 
$output .= "\tID\"";
if ( $page->ID == $args['selected'] )
$output .= ' selected="selected"';
$output .= '>';
$title = esc_html($page->post_title);
$output .= "$pad$title";
$output .= "\n";
}
}
/////////////
function &wp_get_posts($args = '') {
global $wpdb;
 
$defaults = array(
'child_of' => 0, 'sort_order' => 'ASC',
'sort_column' => 'post_title', 'hierarchical' => 1,
'exclude' => '', 'include' => '',
'meta_key' => '', 'meta_value' => '',
'authors' => '', 'parent' => -1, 'exclude_tree' => '',
'number' => '', 'offset' => 0
);
 
$r = wp_parse_args( $args, $defaults );
extract( $r, EXTR_SKIP );
$number = (int) $number;
$offset = (int) $offset;
 
$cache = array();
$key = md5( serialize( compact(array_keys($defaults)) ) );
if ( $cache = wp_cache_get( 'wp_get_posts', 'posts' ) ) {
if ( is_array($cache) && isset( $cache[ $key ] ) ) {
$pages = apply_filters('wp_get_posts', $cache[ $key ], $r );
return $pages;
}
}
 
if ( !is_array($cache) )
$cache = array();
 
$inclusions = '';
if ( !empty($include) ) {
$child_of = 0; //ignore child_of, parent, exclude, meta_key, and meta_value params if using include
$parent = -1;
$exclude = '';
$meta_key = '';
$meta_value = '';
$hierarchical = false;
$incpages = preg_split('/[\s,]+/',$include);
if ( count($incpages) ) {
foreach ( $incpages as $incpage ) {
if (empty($inclusions))
$inclusions = $wpdb->prepare(' AND ( ID = %d ', $incpage);
else
$inclusions .= $wpdb->prepare(' OR ID = %d ', $incpage);
}
}
}
if (!empty($inclusions))
$inclusions .= ')';
 
$exclusions = '';
if ( !empty($exclude) ) {
$expages = preg_split('/[\s,]+/',$exclude);
if ( count($expages) ) {
foreach ( $expages as $expage ) {
if (empty($exclusions))
$exclusions = $wpdb->prepare(' AND ( ID <> %d ', $expage);
else
$exclusions .= $wpdb->prepare(' AND ID <> %d ', $expage);
}
}
}
if (!empty($exclusions))
$exclusions .= ')';
 
$author_query = '';
if (!empty($authors)) {
$post_authors = preg_split('/[\s,]+/',$authors);
 
if ( count($post_authors) ) {
foreach ( $post_authors as $post_author ) {
//Do we have an author id or an author login?
if ( 0 == intval($post_author) ) {
$post_author = get_userdatabylogin($post_author);
if ( empty($post_author) )
continue;
if ( empty($post_author->ID) )
continue;
$post_author = $post_author->ID;
}
 
if ( '' == $author_query )
$author_query = $wpdb->prepare(' post_author = %d ', $post_author);
else
$author_query .= $wpdb->prepare(' OR post_author = %d ', $post_author);
}
if ( '' != $author_query )
$author_query = " AND ($author_query)";
}
}
 
$join = '';
$where = "$exclusions $inclusions ";
if ( ! empty( $meta_key ) || ! empty( $meta_value ) ) {
$join = " LEFT JOIN $wpdb->postmeta ON ( $wpdb->posts.ID = $wpdb->postmeta.post_id )";
 
// meta_key and meta_value might be slashed
$meta_key = stripslashes($meta_key);
$meta_value = stripslashes($meta_value);
if ( ! empty( $meta_key ) )
$where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_key = %s", $meta_key);
if ( ! empty( $meta_value ) )
$where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_value = %s", $meta_value);
 
}
 
if ( $parent >= 0 )
$where .= $wpdb->prepare(' AND post_parent = %d ', $parent);
 
$query = "SELECT * FROM $wpdb->posts $join WHERE (post_type = 'post' AND post_status = 'publish') $where ";
$query .= $author_query;
$query .= " ORDER BY " . $sort_column . " " . $sort_order ;
 
if ( !empty($number) )
$query .= ' LIMIT ' . $offset . ',' . $number;
 
$pages = $wpdb->get_results($query);
 
if ( empty($pages) ) {
$pages = apply_filters('wp_get_posts', array(), $r);
return $pages;
}
 
// Sanitize before caching so it'll only get done once
$num_pages = count($pages);
for ($i = 0; $i < $num_pages; $i++) {
$pages[$i] = sanitize_post($pages[$i], 'raw');
}
 
// Update cache.
update_page_cache($pages);
 
if ( $child_of || $hierarchical )
$pages = & get_page_children($child_of, $pages);
 
if ( !empty($exclude_tree) ) {
$exclude = (int) $exclude_tree;
$children = get_page_children($exclude, $pages);
$excludes = array();
foreach ( $children as $child )
$excludes[] = $child->ID;
$excludes[] = $exclude;
$num_pages = count($pages);
for ( $i = 0; $i < $num_pages; $i++ ) {
if ( in_array($pages[$i]->ID, $excludes) )
unset($pages[$i]);
}
}
 
$cache[ $key ] = $pages;
wp_cache_set( 'wp_get_posts', $cache, 'posts' );
 
$pages = apply_filters('wp_get_posts', $pages, $r);
 
return $pages;
}
//////////////
 
function walk_post_dropdown_tree() {
$args = func_get_args();
if ( empty($args[2]['walker']) ) // the user's options are the third parameter
$walker = new Walker_PostDropdown;
else
$walker = $args[2]['walker'];
 
return call_user_func_array(array(&$walker, 'walk'), $args);
}
 
function wp_dropdown_posts($args = '') {
$defaults = array(
'depth' => 0, 'child_of' => 0,
'selected' => 0, 'echo' => 1,
'name' => 'page_id', 'show_option_none' => '', 'show_option_no_change' => '',
'option_none_value' => ''
);
 
$r = wp_parse_args( $args, $defaults );
extract( $r, EXTR_SKIP );
 
$pages = wp_get_posts($r);
$output = '';
$name = esc_attr($name);
 
if ( ! empty($pages) ) {
$output = "<select name="\"$name\"">
<option value="\"-1\"">$show_option_no_change</option>
<option value="\""">$show_option_none</option>\n";
</select>
<select name="\"$name\"">}
</select>
 
$output = apply_filters('wp_dropdown_pages', $output);
 
if ( $echo )
echo $output;
 
return $output;
}
/////////////////////////////
 
/* Use the admin_menu action to define the custom boxes */
add_action('admin_menu', 'myplugin_add_custom_box');
 
/* Use the save_post action to do something with the data entered */
add_action('save_post', 'myplugin_save_postdata');
 
/* Adds a custom section to the "advanced" Post and Page edit screens */
function myplugin_add_custom_box() {
 
if( function_exists( 'add_meta_box' )) {
add_meta_box( 'myplugin_sectionid', __( 'WP Sub Posts', 'myplugin_textdomain' ), 'myplugin_inner_custom_box', 'post', 'side','high' );
//add_meta_box( $id, $title, $callback, $page, $context, $priority );
add_meta_box( 'myplugin_sectionid', __( 'WP Sub Posts', 'myplugin_textdomain' ), 'myplugin_inner_custom_box', 'page', 'advanced' );
} else {
add_action('dbx_post_advanced', 'myplugin_old_custom_box' );
add_action('dbx_page_advanced', 'myplugin_old_custom_box' );
}
}
 
function myplugin_inner_custom_box() {
echo '
<pre><select name="\"$name\"">'; echo '
</select><input id="myplugin_noncename" name="myplugin_noncename" type="hidden" value="' .
    wp_create_nonce( plugin_basename(__FILE__) ) . '" /><select name="\"$name\"">'; ?>
</select></pre>
<h5><?php _e('Parent') ?></h5>
<pre><label for="post_parent">Please select the parent of this post</label><select name="\"$name\""> <?php $currentid = $_GET['post']; wp_dropdown_posts(array('exclude_tree' => $currentid, 'selected' => $post->post_parent, 'name' => 'parent_id', 'show_option_none' => __('Main Post (no parent)'), 'sort_column' => 'menu_order, post_title')); } /* Prints the edit form for pre-WordPress 2.5 post/page */ function myplugin_old_custom_box() { echo '
</select></pre>
<div class="dbx-b-ox-wrapper">' . "\n"; echo '
<fieldset id="myplugin_fieldsetid" class="dbx-box">' . "\n"; echo '
<div class="dbx-h-andle-wrapper">
<h3 class="dbx-handle">' . __( 'WP Sub Posts', 'myplugin_textdomain' ) . "</h3>
</div>
"; echo '
<div class="dbx-c-ontent-wrapper">
<div class="dbx-content">'; // output editing form myplugin_inner_custom_box(); // end wrapper echo "</div>
</div></fieldset>
</div>
<pre><select name="\"$name\"">\n"; } /* When the post is saved, saves our custom data */ function myplugin_save_postdata( $post_id ) { // verify this came from the our screen and with proper authorization, // because save_post can be triggered at other times if ( !wp_verify_nonce( $_POST['myplugin_noncename'], plugin_basename(__FILE__) )) { return $post_id; } // verify if this is an auto save routine. If it is our form has not been submitted, so we dont want // to do anything if ( defined('DOING_AUTOSAVE') && DOING_AUTOSAVE ) return $post_id; // Check permissions if ( 'page' == $_POST['post_type'] ) { if ( !current_user_can( 'edit_page', $post_id ) ) return $post_id; } else { if ( !current_user_can( 'edit_post', $post_id ) ) return $post_id; } // OK, we're authenticated: we need to find and save the data $mydata = $_POST['parent_id']; return $mydata; } add_filter('posts_where','where_no_parent'); add_filter ('the_content','subpost_template', 1, 2 ); function subpost_template($content) { if(is_singular) { remove_filter('posts_where','where_no_parent'); } echo $content; $idnya = get_the_ID(); $child = new WP_Query("post_type=post&post_parent=".$idnya.""); while($child->have_posts()) : $child->the_post(); echo '
</select></pre>
<blockquote>'; echo '
<h3>'; the_title(); echo '</h3>
'; $childid = get_the_ID(); the_content(); edit_post_link('Edit','','',$childid); echo '</blockquote>
<pre><select name="\"$name\"">'; endwhile; wp_reset_query(); } function where_no_parent($where) { global $wpdb; $where .= " AND post_parent = 0"; return $where; } ?> [/php]
</select><strong> Revision by <a href="http://www.kaskus.us/member.php?u=1202930">polvocdo</a></strong><select id="\"$name\"" name="\"$name\""> 1
</select><strong> Revision by <a href="http://www.kaskus.us/member.php?u=1202930">polvocdo</a></strong><select id="\"$name\"" name="\"$name\""> 1
Download
You can download alpha version of this plugin here Click here 
This plugin is Alpha version, use it for testing purpose only. Any problem caused by this plugin is not my responsibility.


Demo: 
See below:
 
Tags: child post PHP Plugins wordpress plugins wordpress sub post 
										
									
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