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