attach comment to custom post type entry

• nicmare

• August 6, 2014 at 1:24 am

i want to attach certain comments to custom post type entries.
i thought i can achieve this with a relational field.
like i do when i attach some custom post type to another post types with the “post object” field. but this does not provide “comments” here. any suggestion for this?

• Elliot

• August 7, 2014 at 3:26 pm

Hi @nicmare

Thanks for the question. At the moment, there are no fields which you can use to select comments on a post.

I believe it will be possible to use a multi-select field, and use the following tutorial to customize the available choices.
http://www.advancedcustomfields.com/resources/tutorials/dynamically-populate-a-select-fields-choices/

You will need to find some code to query and return the comment ID’s as the select field’s choices

Cheers
E

• nicmare

• August 7, 2014 at 5:48 pm

nice one elliot! this leads me to the right direction. but i think i found a bug?! i am using ACF 5.0.3.
this is my function:

/* auto populate acf field with comment IDs */
function my_acf_load_field( $field ){

	$assignedpost = get_field('produktblog');
	$comments = get_comments(array(
		'status' => 'approve',
		'post_id' => $assignedpost->ID
	));
	if( is_array($comments) )
	{
		foreach( $comments as $key=>$comment )
		{
			$field['choices'][ $key ] = $comment->comment_content;
			$field['default_value'][ $key ] = $comment->comment_ID;
		}
	}
    return $field;
}
 
// v4.0.0 and above
add_filter('acf/load_field/name=kommentare', 'my_acf_load_field');

and this is the print_r from $field:

Array
(
    [ID] => 150
    [key] => field_53e327ee805e6
    [label] => Kommentare
    [name] => kommentare
    [prefix] => 
    [type] => select
    [value] => 
    [menu_order] => 0
    [instructions] => 
    [required] => 0
    [id] => 
    [class] => 
    [conditional_logic] => 0
    [parent] => 6
    [_name] => kommentare
    [_input] => 
    [_valid] => 1
    [choices] => Array
        (
            [0] => kommentar3
            [1] => kommentar2
            [2] => kommentar1
        )

    [default_value] => Array
        (
            [0] => 7
            [1] => 6
            [2] => 5
        )

    [allow_null] => 1
    [multiple] => 1
    [ui] => 0
    [ajax] => 0
    [placeholder] => 
    [disabled] => 0
    [readonly] => 0
)

the select field accepts the choices but not the values:
https://www.dropbox.com/s/h4ek9agt4wk97vg/Screenshot%202014-08-07%2009.47.48.png
so as you can see, the value is still 0,1,2. but it has to be 7,6,5

• nicmare

• August 7, 2014 at 5:58 pm

alright. my fault!
this is correct:

if( is_array($comments) )
	{
		foreach( $comments as $key=>$comment )
		{
			$field['choices'][ $comment->comment_ID ] = $comment->comment_content;
		}
	}

but what is default_value then??
thank you very much elliot. i love your plugin!!

• nicmare

• August 7, 2014 at 7:14 pm

mmmh as soon as i want to save the post with the new values i get this notice:
PHP Notice: Trying to get property of non-object in /Users/nicb/Data/_htdocs/testnow/wp/wp-includes/post-template.php on line 29
PHP Notice: Trying to get property of non-object in /Users/nicb/Data/_htdocs/testnow/wp/wp-content/themes/bootstrap/functions.php on line 527

line 527 if from that function:
‘post_id’ => $assignedpost->ID

but it saves me the post. whats wrong with it?

• nicmare

• August 8, 2014 at 12:55 am

edited

• Elliot

• August 14, 2014 at 1:36 pm

Hi @nicmare

It looks like the error is coming from your theme, not the WP core or ACF. Have you since found a solution for the issue? If not, I would try changing to the default theme and save the post to see if any other errors appear