Wordpress mysql and functions - php

Question

My aim is to import posts from a node.js server to the wordpress database, thus is due to the large amount of records it will be trawling daily..
Do you know of any cheat sheets that show the mysql that a wordpress function uses?
For example
wp_insert_post()
//The above function uses this sql
INSERT INTO wp_posts VALUES(field1) etc etc
Thanks in advance

Answer 1

Auto generating content... Hmmm lets try ..
<?php
//First you need the required files...
include('../wp-load.php' );
require_once('../wp-admin/includes/media.php');
require_once('../wp-admin/includes/file.php');
require_once('../wp-admin/includes/taxonomy.php');
require_once('../wp-includes/taxonomy.php');
// Flush the wordpress db...
$wpdb->flush();
// Get your data from any feed. and lets say you will process it in a foreach loop..
foreach($somedata as $key => $value){
// i don't know your data structure so i give a symbolic example..
$post = array(
'post_author' => 2,
'post_content' => $post_content,
'post_excerpt' => $post_excerpt,
'post_status' => 'publish',
'post_title' => $post_title, // aware & ' so something to escape...
'post_type' => 'post',
'post_date' => $pub_date, // Y-m-d H:i:s
'tags_input' => $tags // comma separated tags..
);
$post_id = wp_insert_post( $post, $wp_error );
wp_set_object_terms( $post_id, $cat_ids, 'category' ); // $cat_ids is an array!
}
?>
The code above will add posts for you.. running it via cron and setting parameters to avoid duplicates your job..
Well if you need to import a remote image and add it to the post as featured you need a function like this..
function somatic_attach_external_image( $url = null, $post_id = null, $thumb = null, $filename = null, $post_data = array(),$resimdesc=null ) {
if ( !$url || !$post_id ) return new WP_Error('missing', "Need a valid URL and post ID...");
require_once( ABSPATH . 'wp-admin/includes/file.php' );
// Download file to temp location, returns full server path to temp file, ex; /home/user/public_html/mysite/wp-content/26192277_640.tmp
$tmp = download_url( $url );
// If error storing temporarily, unlink
if ( is_wp_error( $tmp ) ) {
#unlink($file_array['tmp_name']); // clean up
$file_array['tmp_name'] = '';
return $tmp; // output wp_error
}
preg_match('/[^\?]+\.(jpg|JPG|jpe|JPE|jpeg|JPEG|gif|GIF|png|PNG)/', $url, $matches); // fix file filename for query strings
$url_filename = basename($matches[0]); // extract filename from url for title
$url_type = wp_check_filetype($url_filename); // determine file type (ext and mime/type)
// override filename if given, reconstruct server path
if ( !empty( $filename ) ) {
$filename = sanitize_file_name($filename);
$tmppath = pathinfo( $tmp ); // extract path parts
$new = $tmppath['dirname'] . "/". $filename . "." . $tmppath['extension']; // build new path
rename($tmp, $new); // renames temp file on server
$tmp = $new; // push new filename (in path) to be used in file array later
}
// assemble file data (should be built like $_FILES since wp_handle_sideload() will be using)
$file_array['tmp_name'] = $tmp; // full server path to temp file
if ( !empty( $filename ) ) {
$file_array['name'] = $filename . "." . $url_type['ext']; // user given filename for title, add original URL extension
} else {
$file_array['name'] = $url_filename; // just use original URL filename
}
// set additional wp_posts columns
if ($resimdesc) {
$post_data['post_title'] = $resimdesc; // just use the original filename (no extension)
}
// make sure gets tied to parent
if ( empty( $post_data['post_parent'] ) ) {
$post_data['post_parent'] = $post_id;
}
// required libraries for media_handle_sideload
require_once(ABSPATH . 'wp-admin/includes/file.php');
require_once(ABSPATH . 'wp-admin/includes/media.php');
require_once(ABSPATH . 'wp-admin/includes/image.php');
// do the validation and storage stuff
$att_id = media_handle_sideload( $file_array, $post_id, null, $post_data ); // $post_data can override the items saved to wp_posts table, like post_mime_type, guid, post_parent, post_title, post_content, post_status
// If error storing permanently, unlink
if ( is_wp_error($att_id) ) {
#unlink($file_array['tmp_name']); // clean up
return $att_id; // output wp_error
}
// set as post thumbnail if desired
if ($thumb) {
set_post_thumbnail($post_id, $att_id);
}
return $att_id;
}
You will use this function inside the foreach.. $imgsrc is the url of the image...
$attach_id = somatic_attach_external_image( $imgsrc, $post_id, $thumb = null, $filename = null, $post, $title );
add_post_meta($post_id, '_thumbnail_id', $attach_id, true);
Good luck...