CODEWITHSUNDEEP
phpmysqlwordpress
Avin Varghese
Avin Varghese

Reputation: 4370

wordpress custom query to select a meta value

SELECT b.post_title, a.post_id, COUNT( * ) as Total
FROM  wp_posts b INNER JOIN 
            wp_postmeta a ON a.post_id = b.ID
    WHERE a.meta_value = 1
      AND a.meta_key = 'type-select' 
      AND b.post_status = 'publish'
      and post_type = 'car-cc'
GROUP BY b.post_title, a.post_id

Currently it select's post title and post id but i also need to select a meta value where meta key = type-gen the problem is another meta key is already compared in the query.

SQL Fiddle: http://sqlfiddle.com/#!2/109c2/1

Upvotes: 4

Views: 5883

Answers (3)

Mark
Mark

Reputation: 3035

Use WP_Query for this,

Modified from the Codex page

$args = array(
  'post_type' => 'car-cc',
  'meta_query' => array(
    array(
      'key' => 'type-select',
      'value' => '1',
      'compare' => '='
),
    array(
      'key' => 'type-gen',
      'value' => 'my-great-type',
      'compare' => 'LIKE'
    )
  )
);

$query = new WP_Query( $args );

Upvotes: 1

M Khalid Junaid
M Khalid Junaid

Reputation: 64466

Here you go 

SELECT b.post_title, a.post_id, COUNT( * ) AS Total,
(SELECT meta_value FROM  `wp_postmeta` WHERE post_id= b.ID AND meta_key='type-gen') AS 'new  meta value'
FROM  wp_posts b INNER JOIN 
            wp_postmeta a ON a.post_id = b.ID
    WHERE a.meta_value = 1
      AND a.meta_key = 'type-select' 
      AND b.post_status = 'publish'
      AND post_type = 'car-cc'
GROUP BY b.post_title, a.post_id

Fiddle

Upvotes: 3

Rick Klaassen
Rick Klaassen

Reputation: 120

SELECT b.post_title, a.post_id, COUNT( * ) as Total
FROM  wp_posts b INNER JOIN 
            wp_postmeta a ON a.post_id = b.ID
    WHERE (a.meta_value = 1
      AND a.meta_key = 'type-select' 
      AND b.post_status = 'publish'
      and post_type = 'car-cc') 
    OR (a.meta_value = 1
      AND a.meta_key = 'type-gen' 
      AND b.post_status = 'publish'
      and post_type = 'car-cc')
GROUP BY b.post_title, a.post_id

Upvotes: 1

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