I've have two sql queries which I'm trying to combine
The first:
SELECT * FROM wp_posts
JOIN wp_postmeta on (post_id=ID)
WHERE meta_key = "packageID" and meta_value = 1
ORDER BY post_date limit 50
Joins the wordpress wp_post table to the wp_postmeta and gets all the posts meeting with packageID = 1 (I think it might be an inelegant way of doing it but it works)
The second
SELECT * FROM wp_postmeta
JOIN wp_posts ON (meta_value=ID)
WHERE post_id = 2110
AND meta_key = '_thumbnail_id'
again joins the wp_post table to the wp_postmeta table, so for the post with the id 2110 it successfully gets the thumbnail for that posts. NB 2110 is just an example of an id
In Wordpress a thumbnail is a kind of post. So in this example the text which constitutes post 2110 is a associated with post 2115 - the latter being the thumbnail
What I'm trying to do is get the list as in the first query but also get thumbnails associated with each post
I think I need two joins but I can't see how to do it (being an sql beginner)
NB this will be in a script outside Wordpress so I can't use Wordpress's built-in functions
You can try this one,if there are more than one thumbnails for the post you can get the list of thumbnails separated by comma
SELECT
*,
(SELECT
GROUP_CONCAT(meta_value)
FROM
wp_postmeta
WHERE post_id = wp.ID
AND wpm.meta_key = "_thumbnail_id") AS `thumbnails`
FROM
wp_posts wp
JOIN wp_postmeta wpm
ON (wpm.post_id = wp.ID)
WHERE wpm.meta_key = "packageID"
AND wpm.meta_value = 1
ORDER BY wp.post_date
LIMIT 50
Note : GROUP_CONCAT has a limit to concat characters but you
can increase this limit
To get only one thumbnail you can try this
SELECT
*,
(SELECT
(meta_value)
FROM
wp_postmeta
WHERE post_id = wp.ID
AND wpm.meta_key = "_thumbnail_id" LIMIT 1)
FROM
wp_posts wp
JOIN wp_postmeta wpm
ON (wpm.post_id = wp.ID)
WHERE wpm.meta_key = "packageID"
AND wpm.meta_value = 1
ORDER BY wp.post_date
LIMIT 50
try with the following code
SELECT * FROM wp_posts wp JOIN wp_postmeta wm on (wp.post_id=wm.ID) WHERE wp.meta_key = "packageID" and wp.meta_value = 1 ORDER BY wp.post_date limit 50;
use proper alias and try it.
Try using the post_type column. The attachments have a post_type of 'attachment'. I can further explain if needed.
Also the post to which the thumbnail is attached to will be in the column post_parent.
global $wpdb;
$query7 = "SELECT distinct wp_postmeta.meta_value, wp_postmeta.meta_key, wp_posts.ID
FROM wp_posts INNER JOIN wp_postmeta ON (wp_posts.ID = wp_postmeta.post_id)
INNER JOIN wp_postmeta AS mt1 ON (wp_posts.ID = mt1.post_id)
WHERE wp_posts.ID = wp_postmeta.post_id
AND wp_posts.post_status = 'publish'
AND wp_postmeta.meta_key = 'packageID'
AND wp_postmeta.meta_value = 1
AND (mt1.meta_key LIKE '_thumbnail_id')
$output = $wpdb->get_results( $query7 );
Use join with different aliases when joining same table more than once.
Hope this helps.
Try this
SELECT * FROM wp_posts P1
LEFT JOIN wp_postmeta M1 ON (M1.post_id=P1.ID)
WHERE (M1.meta_key = "packageID" and M1.meta_value = 1 )
LEFT JOIN wp_postmeta M2 ON (M2.meta_key=P1.ID AND M2.meta_key = '_thumbnail_id')
LEFT JOIN wp_posts P2 ON (M2.meta_value=P2.ID)
ORDER BY P1.post_date limit 50
Related
I have the following SQL query :
SELECT wp_posts.* , wicl_translations.*
FROM wp_posts wp_posts join wp_icl_translations wicl_translations
ON (wicl_translations.element_id = wp_posts.ID)
WHERE (wicl_translations.language_code = 'es-es'
AND wicl_translations.element_type ='post_product'
AND wp_posts.post_type = 'product' ) GROUP BY wp_posts.ID
This returns all the results I need to delete from my database so I have tried several DELETE queries but getting syntax errors in all of them .
Example :
DELETE FROM wp_posts
WHERE (
SELECT wp_posts.* , wicl_translations.*
FROM wp_posts wp_posts join wp_icl_translations wicl_translations
ON (wicl_translations.element_id = wp_posts.ID)
WHERE (wicl_translations.language_code = 'pt-pt'
AND wicl_translations.element_type ='post_product'
AND wp_posts.post_type = 'product' ) GROUP BY wp_posts.ID
)
);
Also tried this :
DELETE FROM wp_posts WHERE wp_posts.ID = ANY IN (
SELECT wp_posts.ID, wicl_translations.*
FROM wp_posts wp_posts join wp_icl_translations wicl_translations
ON (wicl_translations.element_id = wp_posts.ID)
WHERE (wicl_translations.language_code = 'es-es'
AND wicl_translations.element_type ='post_product'
AND wp_posts.post_type = 'product' ) GROUP BY wp_posts.ID
)
It`s a complex aggregated query and I lack the mysql knowledge to properly write a rule for deleting these results .
How could I approach this ?
Thanks
If we have a complex query that returns the id value of rows in wp_posts that we want to delete (assuming that id is the primary key or a unique key of a row in the table)... as an example
SELECT p.id
FROM wp_posts p
JOIN wp_icl_translations t
ON t.element_id = p.id
WHERE t.language_code = 'es-es'
AND t.element_type = 'post_product'
AND p.post_type = 'product'
GROUP
BY p.id
We can then use that query as an inline view. We wrap the query in parens and reference it in the FROM clause of another query. MySQL requires that we assign an alias to thhe inline view (or derived table in the MySQL vernacular).
We can join the result from the inline view that back to the table we want to remove rows from. We write this a SELECT statement first
SELECT r.*
FROM ( -- inline view
SELECT p.id
FROM wp_posts p
JOIN wp_icl_translations t
ON t.element_id = p.id
WHERE t.language_code = 'es-es'
AND t.element_type = 'post_product'
AND p.post_type = 'product'
GROUP
BY p.id
) q
JOIN wp_posts r
ON r.id = q.id
to return the set of rows to be removed. We can verify that this is the intended set, or insert (create table as) the set of rows into backup...
Once we are confident that the SELECT is returning the rows we want to remove, we can convert it into a DELETE statement by replacing the SELECT keyword with DELETE.
DELETE r.*
FROM ( -- inline view
SELECT p.id
FROM wp_posts p
JOIN wp_icl_translations t
ON t.element_id = p.id
WHERE t.language_code = 'es-es'
AND t.element_type = 'post_product'
AND p.post_type = 'product'
GROUP
BY p.id
) q
JOIN wp_posts r
ON r.id = q.id
You'r on the right track !
You just miss the correct WHERE condition :
DELETE FROM wp_posts WHERE wp_posts.ids IN (...)
Make sure the result has only one column wich you shall refer to when deleting data from the targetted tables. The delete queries will be equal to the number of tables you will require to delete from ie.
DELETE FROM table_1 where common_column in (YOUR_SELECT_QUERY);
DELETE FROM table_2 where common_column in (YOUR_SELECT_QUERY);
DELETE FROM table_3 where common_column in (YOUR_SELECT_QUERY);
DELETE FROM table_nth where common_column in (YOUR_SELECT_QUERY);
Your select query be like,
SELECT GROUP_CONCAT(temp_tbl.ID) FROM (SELECT wp_posts.* , wicl_translations.*
FROM wp_posts wp_posts join wp_icl_translations wicl_translations
ON (wicl_translations.element_id = wp_posts.ID)
WHERE (wicl_translations.language_code = 'es-es'
AND wicl_translations.element_type ='post_product'
AND wp_posts.post_type = 'product' ) GROUP BY wp_posts.ID) AS temp_tbl
The part of the code where I write,
(SELECT meta_value FROM wp_postmeta WHERE meta_key = '_regular_price') price
It gives an error that subquery returns more than one row. How to get the price?
SELECT p1.ID,p1.post_title,p1.post_excerpt,p2.meta_value, p1.guid,
(select p.guid from wp_posts as p where p2.meta_value=p.ID and post_type='attachment') img, (SELECT meta_value FROM wp_postmeta WHERE meta_key = '_regular_price') price
FROM wp_posts p1
JOIN wp_postmeta p2
ON p1.ID = p2.post_id AND
p1.post_type = 'product' AND
p1.post_status = 'publish' AND
p2.meta_key = '_thumbnail_id'
JOIN wp_posts p3
ON p3.ID = p2.post_id
add CONCAT() in your subquery to group all your result with comma separate & then use FIND_IN_SET for the main query.
This applies to WordPress / Woocommerce
I'm using this query to grab a specific meta_value based matching post_ids in wp_postmeta and wp_posts
SELECT meta.meta_value
FROM wp_postmeta AS meta
JOIN wp_posts AS o
ON meta.post_id = o.ID
WHERE o.post_type = 'shop_order' AND o.post_status='wc-cancelled' AND meta.meta_key='_billing_email'
ORDER BY o.post_date DESC
My problem is I also want to get meta.meta_keys = '_billing_first_name' and '_billing_last_name' for those same conditions in the same query. Right now I have to get each row separately then combine them on an excel sheet.
Is there a way to do this?
If I understand correctly, a simple OR or using IN will do
SELECT meta.meta_value
FROM wp_postmeta AS meta
JOIN wp_posts AS o
ON meta.post_id = o.ID
WHERE o.post_type = 'shop_order' AND o.post_status='wc-cancelled'
AND meta.meta_key IN ('_billing_email' , '_billing_first_name', '_billing_last_name')
ORDER BY o.post_date DESC
I'm using the wordpress / woocommerce database structure and am looking to make a custom query.
Basically I need to grab all products without a certain variation and I'm having trouble joining the IDs.
A product and a product_variation are both posts with associated postmeta.
An example schema:
wp_posts wp_postmeta
ID post_id
post_parent meta_key
post_type meta_value
post_status
An example of the wp_posts table would look like this:
id name post_parent meta_key meta_value
2 tshirt null
3 pants null
4 2 variation_type red
5 2 variation_type blue
Here you can see 4 posts; 2 products and 2 variations. The variation's post_parent point to the product. So i have a red and blue tshirt
What I need, is to grab all products with a blue variation, meaning I need to join post_parent to id.
This is what I have so far.
SELECT * FROM wp_posts wp1
INNER JOIN wp_postmeta pm1
ON (pm1.post_id = wp1.ID)
INNER JOIN wp_postmeta pm2
ON (pm2.post_id = wp1.ID)
JOIN wp_posts wp2
ON (wp2.post_parent = wp1.ID)
AND wp1.post_type = 'product_variation'
AND wp1.post_status = 'publish'
AND pm1.meta_key = 'groups-groups_read_post'
AND pm1.meta_value = 'vet_read'
AND pm2.meta_key = 'variation_type'
AND pm2.meta_value = 'blue'
I believe I'm doing the joins wrong. Any guidance is appreciated.
This process is pretty complicated as there are a lot of things going on under the hood. In a project of mine I have to grab all the post ids (primary product ids) based on a certain attribute.
SELECT
DISTINCT p.post_parent FROM `wp_posts` AS p
LEFT JOIN
`wp_postmeta` AS pm ON p.ID = pm.post_id
LEFT JOIN
`wp_postmeta` AS pm2 ON p.ID = pm2.post_id
WHERE
p.post_type = 'product_variation' AND
(
(pm.meta_key = 'attribute_pa_size' AND pm.meta_value = "XL") OR
(pm.meta_key = 'attribute_size' AND pm.meta_value = "XL")
) AND
pm2.meta_key = '_stock' AND pm2.meta_value != '0'
I had a variation size and I wanted to grab the products who have this variation and is of course not out of stock. You will notice I had to check for the meta_key twice because when you enter attribute in product editor page then woocommerce will store it as attribute_{$attribute_name} and save it in the attributes section. But if you select it from the dropdown of available attributes those are saved previously then you have to look for attribute_pa_{$attribute_name}. I am sure you can modify this SQL based on your requirement.
Note: If you intend to use this custom query alongside with the pre_get_posts to set the post__in parameter then regrettably it won't work. Woocommerce has a filter loop_shop_post_in that overrides this. Just to let you know.
Hope this might help you.
I worked it out and this is what I needed
SELECT wp_posts.* FROM wp_posts
INNER JOIN wp_postmeta ON (wp_posts.ID = wp_postmeta.post_id)
LEFT JOIN wp_posts p2 ON (wp_posts.ID = p2.post_parent) AND p2.post_type = 'product_variation'
INNER JOIN wp_postmeta pm2 ON (pm2.post_id = p2.ID) AND pm2.meta_key = 'variation_type' and pm2.meta_value = 'blue'
WHERE wp_posts.post_type = 'product'
AND (wp_posts.post_status = 'publish')
AND (wp_postmeta.meta_key = 'groups-groups_read_post')
AND CAST(wp_postmeta.meta_value AS CHAR) = 'vet_read';
I'm trying to show latest Post Excerpt, Post Title and Featured Image on an ASP page. To simplify the query I add the Permalink as a custom field for each Post. I have a query that gets all except Featured Image and I have another query that gets Featured image but I can't work out how to merge them into one query.
// Gets Post Excerpt and Post Title
SELECT
wp_posts.id,
wp_posts.post_title,
wp_postmeta.meta_value,
wp_postmeta.meta_key,
wp_posts.post_excerpt
FROM
wp_postmeta
INNER JOIN wp_posts p ON (wp_postmeta.post_id = wp_posts.ID)
WHERE post_id IN (
SELECT wp_posts.id
FROM wp_posts
WHERE post_type = 'post'
AND post_status = 'publish'
AND meta_key = 'my_permalink'
ORDER BY post_date, wp_posts.id
)
ORDER BY wp_posts.post_date DESC, wp_postmeta.post_id
LIMIT 2
// Gets Featured Images for a Post
SELECT p.*
FROM wp_postmeta AS pm
INNER JOIN wp_posts AS p ON pm.meta_value=p.ID
WHERE pm.post_id = $ID
AND pm.meta_key = '_thumbnail_id'
ORDER BY p.post_date DESC
Can anyone help me merge these queries? Thanks.
Sample data to be returned:
ID | post_title | post_excerpt | meta_value_my_permalink | featured_image_guid
** UPDATE *
I've managed to get the following which works fine except I can't get more that one row as I get an error when I try and use 'IN' in a subquery
e.g. pm2.post_id IN (SELECT wp_posts.id FROM wp_posts WHERE post_type = 'post' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 2)
SELECT
p.post_title,
p.post_excerpt,
pm.meta_value AS permalink,
p2.guid as thumbnail,
p2.post_title as image_alt
FROM
wp_postmeta pm
INNER JOIN wp_posts p ON (pm.post_id = p.ID),
wp_postmeta pm2
INNER JOIN wp_posts p2 ON (pm2.meta_value = p2.ID)
WHERE
pm.post_id = (SELECT wp_posts.id FROM wp_posts WHERE post_type = 'post' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1) AND
pm.meta_key = 'my_permalink' AND
pm2.post_id = (SELECT wp_posts.id FROM wp_posts WHERE post_type = 'post' AND post_status = 'publish' ORDER BY post_date DESC LIMIT 1) AND
pm2.meta_key = '_thumbnail_id'
It is difficult to see what you are trying to get without some sample data but I think that you know the post ID and need the info from both the my_permakink and _thumbnail_id keys?
Since I'm on a tablet I will give you the bare bones only and let you limit the result set and filter it.
Select *
From wp_posts p
Inner join
Wp_postmeta pm1 on p.id = pm1.post_id and metakey = 'my_permalink'
Inner join
Wp_postmeta pm2 on p.id = pm1.post_id and metakey = '_thumbnail_id'
This will give you every post that has an image with the info for both metakeys. If you want the info for posts without an image change the second inner join to a left join.
A bunch of joins and a view as the subquery has given me what I need.
SELECT
p.post_title,
p.post_excerpt,
pm.meta_value AS permalink,
p2.guid AS thumbnail,
p2.post_title AS thumbnail_alt
FROM
wp_postmeta pm
INNER JOIN wp_posts p ON (pm.post_id = p.ID)
INNER JOIN wp_postmeta pm2 ON (pm2.post_id = p.ID)
INNER JOIN wp_posts p2 ON (pm2.meta_value = p2.ID)
WHERE
pm.meta_key = 'my_permalink' AND
pm2.meta_key = '_thumbnail_id' AND
p.ID IN (SELECT * FROM vwLatestPostIds)
Use this to retrieve the post title, post id, post featured thumbnail url, post category etc -
"SELECT a.ID id, a.post_title title, a.post_content content,taxonomy, name, a.post_date_gmt postdate,max(c.guid) img_url
FROM kb_posts a
JOIN kb_term_relationships tr
ON (a.id = tr.object_id)
JOIN kb_term_taxonomy tt
ON (tr.term_taxonomy_id = tt.term_taxonomy_id AND tt.taxonomy='category')
JOIN kb_terms t
ON (t.term_id = tt.term_id AND t.term_id = $user_id)
LEFT JOIN
(select post_parent, max(post_date_gmt) as latest_image_date from kb_posts
where post_type='attachment' GROUP BY post_parent) b
on a.id=b.post_parent
LEFT JOIN kb_posts c
on c.post_parent=a.id
and c.post_type='attachment'
and b.latest_image_date = c.post_date_gmt where c.guid IS NOT NULL
GROUP BY a.ID ORDER BY a.ID DESC LIMIT 5"