Get custom post type by value?

• blaasvaer

• June 13, 2017 at 6:31 am

OK, I simply have to admit that I simply don’t get how to pull ANYTHING from the DB in WordPress … my head keep exploding and my brain resets every fifteen minutes (yeah, with a head like that it’s freakin’ hard to get anything done):

How do I get a specific custom post type by value?

I have created a Field Group called Brands, and under that I have a Field Name of ‘select_brands’. And I need to get one of a specific Brand.

This obviously doesn’t work:

$args_brand = array(
	'post_type' => 'brands',
	'numberposts' => 1,
	'meta_query' => array(
		array(
			'key' => 'select_brands',
			'value' => '"' . $brand . '"',
			'compare' => 'LIKE'
		)
	)
);

This does neither:

$args_brand = array(
	'post_type' => 'brands',
	'numberposts' => 1,
	'meta_key'	=> 'select_brands',
	'meta_value'	=> $brand
);

Why is it that I simply cannot grasp this concept!?

SELECT * FROM custom_post_type WHERE value = "brand"?

• John Huebner

• June 13, 2017 at 11:42 am

Can you upload or post the exported field group. If you’re using ACF5, export in json format and attach it as a .zip file. If you’re using ACF4 then the php code export will work.

• blaasvaer

• June 14, 2017 at 6:09 am

Hi John, how do I do that?

• John Huebner

• June 14, 2017 at 6:12 am

ACF5 go to Custom Fields => Tools
ACF4 Custom Fields => Export

• blaasvaer

• June 14, 2017 at 6:20 am

Oh sorry, John, thought I was on a different post. I managed this last night after about five or six hours of work, randomly trying all combinations of field_value, term_id, slug … I could think of. Well, the lot. For HOURS. So frankly I don’t know what actually made it work, as it’s all very random to me. All I know is that I ended up with an extremely long script where I call the database multiple times. And to be honest, I don’t think it’s good for performance, at all.

And now AGAIN (different project) I can’t get simple fields from a custom post type. It somehow turns into a bleedin’ nightmare every time I (try) use this plugin … and I seriously cannot grasp why.

I just sent a ticket (again) for the exact same issue I start out with every time I use this plugins. It’s really sad, actually.

• blaasvaer

• June 14, 2017 at 6:43 am

OK, found this out after banging my head at the wall: Am I right if I say that when setting up posts I have to use the exact characters ‘$post’?

I was trying to: foreach ( $principles as $principle ) : setup_post( $principle ).

Then: echo get_field(‘principle_link);

And doing that I got nothing, it wasn’t until I (again, a reaction of desperation) changed it all to $posts and $post … !?

Am I being struck by bad luck, or is this how WP is SUPPOSED to work!?

• John Huebner

• June 18, 2017 at 9:56 am

Sorry I didn’t get back to you sooner on this, it been a busy week.

Yes, what you use wp_setup_postdata() you need to use $post to get values. $post is a global WP variable that is available in all templates.