WordPress.org

1. luisleguisamo
   Member
   Posted 1 year ago #
   

   What I'm trying to accomplish:
   I'm trying to use one custom field to add multiple values to the same Meta Key.

   However, for each time that I submit a value, I get a duplicate, for example:

   Key1 = Sweet
   Key1 = Sweet
   Key1 = Yay
   Key1 = Yay

   And what I need help with is getting this result:
   Key1 = Sweet
   Key1 = Yay

   Here is my current code:
   I tried stripping the code down to the bare essentials, as I'm in the process of trying to understand what's happening in each line of code. I removed the nonce code that's found in the codex because, once again, it looked like trivial info for the crash course I intended to put upon myself. Be nice :)

   add_action( 'add_meta_boxes', 'ez_portfolio_gallery' );
   
   function ez_portfolio_gallery() {
   	add_meta_box( 'ez_portfolio_gallery', 'Portfolio Gallery', 'myplugin_inner_custom_box', 'post', 'normal', 'high'  );
   }
   
   function myplugin_inner_custom_box( $post ) {
   
   //i'm using this to output my current values in addition to what I can see in the custom fields section. For debugging purposes.
   	$ez_portfolio_image_name = get_post_meta($post->ID, 'ez_portfolio_image', true);
   
   	$custom_fields = get_post_custom(1);
     	$my_custom_field = $custom_fields['ez_portfolio_image'];
    	if($my_custom_field != ""){
    		foreach ( $my_custom_field as $key => $value ){
       		echo $key . " => " . $value . "<br />";
     		}
   	}
   
   	?>
   
   	<label>Image URL:</label>
   	<input type="text" id="ez_portfolio_image" name="ez_portfolio_image" value="" size="25" />
   
   	<?php
   }
   add_action( 'save_post', 'myplugin_save_postdata' );
   function myplugin_save_postdata() {
   
   	// Check permissions
   	if ( 'post' == $_POST['post_type'] ){
   
   			$ez_portfolio_image = $_POST['ez_portfolio_image'];
   
   			if($ez_portfolio_image != ""){
   				add_post_meta(1, 'ez_portfolio_image', $ez_portfolio_image, false);
   
   			}
   
   	}
   
   }

2. luisleguisamo
   Member
   Posted 1 year ago #
   

   Resolved!

   I've pasted my solution here.

   What the problem was
   add_action('save_post','ez_portfolio_gallery_save');
   The hook save_post submits twice.

   While searching online I found out that save_post submits a regular post and a revision.

   Therefore, when I retrieved the post_type(i forgot what I used to do this) it was outputting "post, post"(i added the comma and space for clarity). This made things confusing because I was hoping to see something like "post, revision"(i added the comma and space for clarity).

   Therefore if I wanted to ignore the second post_type "revision" with some conditional statement, it would fail.

   The online forums mentioned wp_is_post_revision. However, for some reason a lot, I mean A LOT of people have developed a habit of not informing you how to use it with a simple example.

   How to use wp_is_post_revision within a conditional statement
   

   function ez_portfolio_gallery_save($post_ID){
   
           $ez_portfolio_gallery = $_POST['ez_portfolio_gallery'];
   
           //verify post is not a revision
           if ( !wp_is_post_revision( $post_ID ) ) {
   
                   add_post_meta($post_ID, 'ez_portfolio_gallery', $ez_portfolio_gallery);
   
           }
   }

   NOTE:
   You don't have to use the global $post; code (found in the pastebin). I was simply using that for debugging purposes.

   I hope this helps others!

3. conormaxwell
   Member
   Posted 10 months ago #
   

   Thankyou luisleguisamo. This was just what I wanted to know. And the background too. Very clear and helpful. Many thanks.

4. luisleguisamo
   Member
   Posted 10 months ago #
   

   You're welcome, conormaxwell! I'm glad it was helpful.

Topic Closed

This topic has been closed to new replies.