I am new to wordpress and woocommerce development and I am just wondering, how to manipulate an admin-screen in a clean, updateable way.
For example, I want to add a custom field to a product edit page (see screen):
I know, that I have to write a custom extension, but is it possible, to manipulate admin-screens of other extensions? I couldn't find any suitable tutorial? Maybe someone has a hint, where to start?
The feature of creating custom fields for products is baked right into WooCommerce, whether to implement it directly in functions.php or do the same via a plugin is left to one's sole discretion.
Remi Corson has written an excellent article detailing the same.
Here's the gist :
1.Create the fields using the woocommerce_product_options_general_product_data hook
add_action( 'woocommerce_product_options_general_product_data', 'woo_add_custom_general_fields' );
function woo_add_custom_general_fields() {
// Define your fields here.
// You can create text, textarea, select, checkbox and custom fields
}
2.When product is saved save the value entered in your custom field using woocommerce_process_product_meta hook
add_action( 'woocommerce_process_product_meta', 'woo_add_custom_general_fields_save' );
function woo_add_custom_general_fields_save( $_post_id ) {
//save field values
}
WooCommerce is a WordPress plugin that will help you to turn your website into an eCommerce store.
Yes, you can write an Extension ( or ADD-On) for this plugin, in fact there are already hundreds of Extension ( free and Paid ) have been made for it.
In order to create an Extension ( or ADD-ON ) for this plugin, you need to understand 2 things:
WooCommerce API
http://docs.woothemes.com/document/create-a-plugin/
WordPress API https://codex.wordpress.org/Writing_a_Plugin
Related
I am struggling to know how WooCommerce initiate the saving of post and post meta from the dashboard? Please help me with this.
I was able to find the insert code here:
includes/class-wc-order.php
public function save() {
//statement
}
Thanks
May be this one can be helpful to others..
WooCommerce use post meta to add extra information on default WordPress post. Hence every time we update or create order from WordPress admin, WordPress initiate from this action...
add_action( 'save_post', array( $this, 'save_meta_boxes' ), 1, 2 );
Location: woocommerce/includes/class-wc-admin-meta-boxes.php
Everything happens from this hooks.
Note: As this is not related to aboven question but the best hooks to process any action on custom meta box is:
woocommerce_order_object_updated_props
Thanks
The Wordpress site I'm working on has a section for "News" (which is the regular blog/posts) which will be used for any news the company has to write about. Then I have a custom post type for Promotions, which has it's own page.
I want the client to be able to add his promotion content through the custom post type, which is going on the Promotions page, however I'd like this content to also be "cross posted" into the blog/news without forcing the client to write it up twice.
Is there a way to do this? Thanks.
Just a note: The reason I have the promotions as a custom type on it's own instead of just having them do it all from the blog is because I needed custom fields that would be unnecessary for any other kind of blog post.
Two options:
1) Use the Shortcode API
And in your cross-post you'd add the shortcode [crosspost id="POST-ID"]. Where POST-ID corresponds to the numeric ID of the other post (post type). Instead of ID, the title could be used, see the function get_page_by_title.
Create your own plugin for this. Add a sample shortcode from the Codex and use the function get_post to get the contents of the cross-post.
2) Use Advanced Custom Fields plugin
With it, adding meta boxes with custom fields is a breeze. And it has a Post Object field that's basically a Cross Post functionality.
You could do it a lot more simply by adding a filter to wp_insert_data(). For example, in your theme's functions.php file add the following:
add_filter('wp_insert_post_data', 'post_to_other', 99, 2);
That filter will then run anytime you add a new post. In the function post_to_other(), you look to see what type of post is being submitted. If it's a promotion, then insert a second copy as a News item.
function post_to_other($post_id, $post){
/** check $post to see what type it is, if it's a promotion */
if($post->post_type == 'promotion'){
$second_post = array(
'post_type'=> 'post',
'post_title'=> $post->post_title,
'post_name' =>$post->post_name,
'post_content'=> $post->post_content,
'post_author'=> $post->post_author,
'post_status'=> 'publish',
'tax_input'=> array('taxonomy_name'=>array('news'))
);
wp_insert_post($second_post);
}
}
I'm running out the door so I don't have time to double check the exact code but that's the basic structure of it. The tax_input bit is optional, lets you specify a category if you want. You'll probably need to tweak it a bit but that's the basics.
For each blog-post on my wordpress-blog I'd like to have Teaxtarea where i can pass additional content for that post.
In my case that would be an unordered list which contains a quick overview of the content.
That additional content should be displayed in the preview of the post on the blog-preview-page.
My problem:
I am actually not sure on how to best add this additional content and then pass it to the preview.
Do I use wordpress' custom fields for something like this?
I'm gratefull for a push in the right direction.
Thank you,
Nils
If I understand you right, I'd take a look at "custom meta boxes" functionality - it allows you to add any type of additional input into your blog post admin area, and than display its content on front-end however you like.
There's a nice tutorial series on that topic, with example code snippets:
http://wp.tutsplus.com/series/reusable-custom-meta-boxes/
And if you'd like to display the textarea content only in preview mode, you can use appropriate conditional tag in you template file:
http://codex.wordpress.org/Conditional_Tags#A_Preview
The conditional tag is_preview returns true when a single post is viewed in Draft mode. The following will append post meta to the content when a post is being previewed:
function so16799607_preview( $content )
{
if ( ! is_preview() )
return $content;
return $content . get_post_meta( get_the_ID(), 'my_post_meta', true );
}
add_filter( 'the_content', 'so16799607_preview', 10, 1 );
You should check out Advanced Custom Fields. That's a really stable plugin that lets you create custom meta boxes in posts, pages and custom post types. That plugin does exactly what your question states. Need al little PHP to get stuff from your database, but that is as easy as:
<?php the_field(field_name);?>
And the documentation is pretty good. And if you don't like a plugin, it exports the PHP as well.
Anther tool that does the same is Pods Framework. Both powerfull extensions to any WP install in my opinion.
Hope this helps.
I wonder if I could ask a Wordpress / RSS question I could't find an answer for around here,
Trying to syndicate posts via RSS in Wordpress using the FeedWordpress plugin as an RSS aggregator, each post in the original blog includes five custom fields that are important for its Theme functionality (the original and syndicating / receiving blog using the same theme).
The original RSS2 feed doesn't include these custom fields apart from one, being enclosure, that is defined in the default rss feed template (function in WP rss_enclosure).
This is written in the original feed such as:
<enclosure url="http://www.samplevideourl.flv" length="18554755" type="video/x-flv" />
Tried to add the rest of the custom fields modifying the rss2-feed.php template so they show at the end of each segment in the current RSS2 feed, now they are included as for example:
...
<ratings_average>0</ratings_average>
<views>5</views>
</item>
However, if I update the syndicated posts, or delete the posts and fetch the modified feed again with feedwordpress, none of these show in the syndicated posts.
Is there a way to include these custom fields so they are recognized by feedwordpress?
Basically need to syndicate the same format of the post as the original including all its custom fields.
Many Thanks
Carlos
There is a thread that covers this: https://wordpress.stackexchange.com/questions/3801/add-custom-fields-to-custom-post-type-rss
I've condensed the answers there to reflect the later improvements (thanks MikeSchinkel, prettyboymp and Acts7).
Add this to your theme's functions.php:
/* IN ORDER TO VALIDATE you must add namespace */
add_action('rss2_ns', 'my_rss2_ns');
function my_rss2_ns(){
echo 'xmlns:mycustomfields="'. get_bloginfo('wpurl').'"'."\n";
}
add_action('rss2_item', 'yoursite_rss2_item');
function yoursite_rss2_item() {
if (get_post_type()=='my_custom_post_type') {
$fields = array( 'field1', 'field2', 'field3' );
$post_id = get_the_ID();
foreach($fields as $field)
if ($value = get_post_meta($post_id,$field,true))
echo "<mycustomfields:{$field}>{$value}</mycustomfields:{$field}>\n";
}
}
This will add all custom field names and values to the site's main feed.
Note, for custom fields with more than one value, a modification is necessary as the above will only work for single value fields, not arrays.
So,
On your Master site (where you are syndicating FROM) you add the above function.
On the Slave site (where you are syndicating TO), assuming you have FeedWordPress installed, go to "SYNDICATION" ->
Click on the name of the RSS feed
Go to Custom Feed Settings and plug in the pieces
I have created a custom post type in wordpress called videos. When the admin adds a video he also needs to provide a youtube-id. This can be done by selecting the appropriate custom field from the drop-down list and then entering the ID.
I was wondering though, isn't there a way to always display that custom field when you are adding or editing a video? (And optionally, could you even make it a required field?)
You could use the More Fields or Custom Post Type UI plugins to create the youtube-id field for your video posts.
Youtube Post Type also requires a youtube url before creating a custom post type draft.
Create a Meta Fields for youtube video url
By using
add_meta_box( $id, $title, $callback, $post_type, $context, $priority, $callback_args );
Example
I'll just answer my own question after 8 years :)
For people who live on another planet: just use the ACF plugin