Wordpress/wp-includes/functions-post.php

357 lines
9.1 KiB
PHP

<?php
/**** DB Functions ****/
/*
* generic function for inserting data into the posts table.
*/
function wp_insert_post($postarr = array()) {
global $wpdb, $post_default_category;
// export array as variables
extract($postarr);
// Do some escapes for safety
$post_title = $wpdb->escape($post_title);
$post_name = sanitize_title($post_title);
$post_excerpt = $wpdb->escape($post_excerpt);
$post_content = $wpdb->escape($post_content);
$post_author = (int) $post_author;
// Make sure we set a valid category
if (0 == count($post_category) || !is_array($post_category)) {
$post_category = array($post_default_category);
}
$post_cat = $post_category[0];
if (empty($post_date))
$post_date = current_time('mysql');
// Make sure we have a good gmt date:
if (empty($post_date_gmt))
$post_date_gmt = get_gmt_from_date($post_date);
$sql = "INSERT INTO $wpdb->posts
(post_author, post_date, post_date_gmt, post_modified, post_modified_gmt, post_content, post_title, post_excerpt, post_category, post_status, post_name)
VALUES ('$post_author', '$post_date', '$post_date_gmt', '$post_date', '$post_date_gmt', '$post_content', '$post_title', '$post_excerpt', '$post_cat', '$post_status', '$post_name')";
$result = $wpdb->query($sql);
$post_ID = $wpdb->insert_id;
wp_set_post_cats('',$post_ID,$post_category);
if ($post_status == 'publish') {
do_action('publish_post', $post_ID);
}
// Return insert_id if we got a good result, otherwise return zero.
return $result ? $post_ID : 0;
}
function wp_get_single_post($postid = 0, $mode = OBJECT) {
global $wpdb;
$sql = "SELECT * FROM $wpdb->posts WHERE ID=$postid";
$result = $wpdb->get_row($sql, $mode);
// Set categories
$result['post_category'] = wp_get_post_cats('',$postid);
return $result;
}
function wp_get_recent_posts($num = 10) {
global $wpdb;
// Set the limit clause, if we got a limit
if ($num) {
$limit = "LIMIT $num";
}
$sql = "SELECT * FROM $wpdb->posts ORDER BY post_date DESC $limit";
$result = $wpdb->get_results($sql,ARRAY_A);
return $result?$result:array();
}
function wp_update_post($postarr = array()) {
global $wpdb;
// First get all of the original fields
extract(wp_get_single_post($postarr['ID'],ARRAY_A));
// Now overwrite any changed values being passed in
extract($postarr);
// Make sure we set a valid category
if (0 == count($post_category) || !is_array($post_category)) {
$post_category = array($post_default_category);
}
// Do some escapes for safety
$post_title = $wpdb->escape($post_title);
$post_excerpt = $wpdb->escape($post_excerpt);
$post_content = $wpdb->escape($post_content);
$post_modified = current_time('mysql');
$post_modified_gmt = current_time('mysql', 1);
$sql = "UPDATE $wpdb->posts
SET post_content = '$post_content',
post_title = '$post_title',
post_category = $post_category[0],
post_status = '$post_status',
post_date = '$post_date',
post_date_gmt = '$post_date_gmt',
post_modified = '$post_modified',
post_modified_gmt = '$post_modified_gmt',
post_excerpt = '$post_excerpt',
ping_status = '$ping_status',
comment_status = '$comment_status'
WHERE ID = $ID";
$result = $wpdb->query($sql);
wp_set_post_cats('',$ID,$post_category);
return $wpdb->rows_affected;
}
function wp_get_post_cats($blogid = '1', $post_ID = 0) {
global $wpdb;
$sql = "SELECT category_id
FROM $wpdb->post2cat
WHERE post_id = $post_ID
ORDER BY category_id";
$result = $wpdb->get_col($sql);
return array_unique($result);
}
function wp_set_post_cats($blogid = '1', $post_ID = 0, $post_categories = array()) {
global $wpdb;
// If $post_categories isn't already an array, make it one:
if (!is_array($post_categories)) {
if (!$post_categories) {
$post_categories = 1;
}
$post_categories = array($post_categories);
}
$post_categories = array_unique($post_categories);
// First the old categories
$old_categories = $wpdb->get_col("
SELECT category_id
FROM $wpdb->post2cat
WHERE post_id = $post_ID");
if (!$old_categories) {
$old_categories = array();
} else {
$old_categories = array_unique($old_categories);
}
$oldies = print_r($old_categories,1);
$newbies = print_r($post_categories,1);
logio("O","Old: $oldies\nNew: $newbies\n");
// Delete any?
$delete_cats = array_diff($old_categories,$post_categories);
logio("O","Delete: " . print_r($delete_cats,1));
if ($delete_cats) {
foreach ($delete_cats as $del) {
$wpdb->query("
DELETE FROM $wpdb->post2cat
WHERE category_id = $del
AND post_id = $post_ID
");
logio("O","deleting post/cat: $post_ID, $del");
}
}
// Add any?
$add_cats = array_diff($post_categories, $old_categories);
logio("O","Add: " . print_r($add_cats,1));
if ($add_cats) {
foreach ($add_cats as $new_cat) {
$wpdb->query("
INSERT INTO $wpdb->post2cat (post_id, category_id)
VALUES ($post_ID, $new_cat)");
logio("O","adding post/cat: $post_ID, $new_cat");
}
}
} // wp_set_post_cats()
function wp_delete_post($postid = 0) {
global $wpdb;
$sql = "DELETE FROM $wpdb->post2cat WHERE post_id = $postid";
$wpdb->query($sql);
$sql = "DELETE FROM $wpdb->posts WHERE ID = $postid";
$wpdb->query($sql);
$result = $wpdb->rows_affected;
return $result;
}
/**** /DB Functions ****/
/**** Misc ****/
// get permalink from post ID
function post_permalink($post_ID=0, $mode = 'id') {
global $wpdb;
global $querystring_start, $querystring_equal, $querystring_separator;
$blog_URL = get_settings('home') .'/'. get_settings('blogfilename');
$postdata = get_postdata($post_ID);
// this will probably change to $blog_ID = $postdata['Blog_ID'] one day.
$blog_ID = 1;
if (!($postdata===false)) {
switch(strtolower($mode)) {
case 'title':
$title = preg_replace('/[^a-zA-Z0-9_\.-]/', '_', $postdata['Title']);
break;
case 'id':
default:
$title = "post-$post_ID";
break;
}
// this code is blatantly derived from permalink_link()
$archive_mode = get_settings('archive_mode');
switch($archive_mode) {
case 'daily':
$post_URL = $blog_URL.$querystring_start.'m'.$querystring_equal.substr($postdata['Date'],0,4).substr($postdata['Date'],5,2).substr($postdata['Date'],8,2).'#'.$title;
break;
case 'monthly':
$post_URL = $blog_URL.$querystring_start.'m'.$querystring_equal.substr($postdata['Date'],0,4).substr($postdata['Date'],5,2).'#'.$title;
break;
case 'weekly':
if((!isset($cacheweekly)) || (empty($cacheweekly[$postdata['Date']]))) {
$sql = "SELECT WEEK('".$postdata['Date']."') as wk";
$row = $wpdb->get_row($sql);
$cacheweekly[$postdata['Date']] = $row->wk;
}
$post_URL = $blog_URL.$querystring_start.'m'.$querystring_equal.substr($postdata['Date'],0,4).$querystring_separator.'w'.$querystring_equal.$cacheweekly[$postdata['Date']].'#'.$title;
break;
case 'postbypost':
$post_URL = $blog_URL.$querystring_start.'p'.$querystring_equal.$post_ID;
break;
}
}
return $post_URL;
}
// Get the name of a category from its ID
function get_cat_name($cat_id) {
global $wpdb;
$cat_id -= 0; // force numeric
$name = $wpdb->get_var("SELECT cat_name FROM $wpdb->categories WHERE cat_ID=$cat_id");
return $name;
}
// Get the ID of a category from its name
function get_cat_ID($cat_name='General') {
global $wpdb;
$cid = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE cat_name='$cat_name'");
return $cid?$cid:1; // default to cat 1
}
// Get author's preferred display name
function get_author_name($auth_id) {
$authordata = get_userdata($auth_id);
switch($authordata["user_idmode"]) {
case "nickname":
$authorname = $authordata["user_nickname"];
case "login":
$authorname = $authordata["user_login"];
break;
case "firstname":
$authorname = $authordata["user_firstname"];
break;
case "lastname":
$authorname = $authordata["user_lastname"];
break;
case "namefl":
$authorname = $authordata["user_firstname"]." ".$authordata["user_lastname"];
break;
case "namelf":
$authorname = $authordata["user_lastname"]." ".$authordata["user_firstname"];
break;
default:
$authorname = $authordata["user_nickname"];
break;
}
return $authorname;
}
// get extended entry info (<!--more-->)
function get_extended($post) {
list($main,$extended) = explode('<!--more-->',$post);
// Strip leading and trailing whitespace
$main = preg_replace('/^[\s]*(.*)[\s]*$/','\\1',$main);
$extended = preg_replace('/^[\s]*(.*)[\s]*$/','\\1',$extended);
return array('main' => $main, 'extended' => $extended);
}
// do trackbacks for a list of urls
// borrowed from edit.php
// accepts a comma-separated list of trackback urls and a post id
function trackback_url_list($tb_list, $post_id) {
if (!empty($tb_list)) {
// get post data
$postdata = wp_get_single_post($post_id, ARRAY_A);
// import postdata as variables
extract($postdata);
// form an excerpt
$excerpt = strip_tags($post_excerpt?$post_excerpt:$post_content);
if (strlen($excerpt) > 255) {
$exerpt = substr($excerpt,0,252) . '...';
}
$trackback_urls = explode(',', $tb_list);
foreach($trackback_urls as $tb_url) {
$tb_url = trim($tb_url);
trackback($tb_url, stripslashes($post_title), $excerpt, $post_id);
}
}
}
?>