I get null from a SQL query in WordPress - php

I have a problem trying to get data from a specific meta_value in WordPress, that is, when I do a "WHERE AND (PM.meta_key= 'webm' and PM.meta_value= 'Chaturbate')" in the sql query. When I don't use where and get all the data it usually looks like this:
SELECT P.ID,
MAX(CASE WHEN PM.meta_key = 'nombrem' THEN PM.meta_value END) AS nombrem,
MAX(CASE WHEN PM.meta_key = 'generom' THEN PM.meta_value END) AS generom,
MAX(CASE WHEN PM.meta_key = 'tiempom' THEN PM.meta_value END) AS tiempom,
MAX(CASE WHEN PM.meta_key = 'urlm' THEN PM.meta_value END) AS urlm,
MAX(CASE WHEN PM.meta_key = 'imagenm' THEN PM.meta_value END) AS imagenm
FROM
K1nG_posts AS P
LEFT JOIN K1nG_postmeta AS PM ON P.ID = PM.post_id
WHERE
P.post_type = 'post'
AND (P.post_status = 'publish' OR P.post_status = 'private')
GROUP BY P.ID, P.post_date
But when I use the "WHERE AND (PM.meta_key= 'webm' and PM.meta_value= 'Chaturbate')" in a meta_value of a respective meta_key called "webm", I get the matching records but without the "select" information, that is, null, as can be seen in the image:
SELECT P.ID,
MAX(CASE WHEN PM.meta_key = 'nombrem' THEN PM.meta_value END) AS nombrem,
MAX(CASE WHEN PM.meta_key = 'generom' THEN PM.meta_value END) AS generom,
MAX(CASE WHEN PM.meta_key = 'tiempom' THEN PM.meta_value END) AS tiempom,
MAX(CASE WHEN PM.meta_key = 'urlm' THEN PM.meta_value END) AS urlm,
MAX(CASE WHEN PM.meta_key = 'imagenm' THEN PM.meta_value END) AS imagenm
FROM
K1nG_posts AS P
LEFT JOIN K1nG_postmeta AS PM ON P.ID = PM.post_id
WHERE
P.post_type = 'post'
AND (P.post_status = 'publish' OR P.post_status = 'private')
AND (PM.meta_key= 'webm' and PM.meta_value= 'Chaturbate')
GROUP BY P.ID, P.post_date

try to use this code
WHERE
P.post_type = 'post'
AND P.post_status = 'publish' OR P.post_type = 'post' AND P.post_status = 'private'
this basically takes
P.post_type = 'post' AND P.post_status
as A
and
P.post_type = 'post' AND P.post_status = 'private'
as B
so it is
A or B

Related

Sql query to exclude meta_value where meta_key = x on SUM for WooCommerce

Using Get orders total purchases amount for the day in Woocommerce answer code, returns the total value of woocommerce orders which works fine, but the problem is if I want to exclude all the orders where _billing_first_name key has not abc value, like in this code attempt:
global $wpdb;
return $wpdb->get_var( "
SELECT DISTINCT SUM(pm.meta_value)
FROM {$wpdb->prefix}posts as p
INNER JOIN {$wpdb->prefix}postmeta as pm ON p.ID = pm.post_id
WHERE p.post_type LIKE 'shop_order'
AND p.post_status IN ('wc-processing','wc-completed')
AND UNIX_TIMESTAMP(p.post_date) >= (UNIX_TIMESTAMP(NOW()) - (86400))
AND pm.meta_key LIKE '_order_total'
AND NOT (pm.meta_value = 'abc')
" );
I have tried a number of ways with no luck, any help is appreciated
You can also use 2 INNER JOIN for the same table with a different reference as following (to avoid a double query like in your answer):
global $wpdb;
return $wpdb->get_var( "
SELECT SUM(pm.meta_value)
FROM {$wpdb->prefix}posts as p
INNER JOIN {$wpdb->prefix}postmeta as pm ON p.ID = pm.post_id
INNER JOIN {$wpdb->prefix}postmeta as pm2 ON p.ID = pm2.post_id
WHERE p.post_type = 'shop_order'
AND p.post_status IN ('wc-processing','wc-completed')
AND pm.meta_key = '_order_total'
AND pm2.meta_key = '_billing_first_name'
AND pm2.meta_value != 'abc'
" );
Tested and works smoother.
For anyone looking into this the fix i made is:
global $wpdb;
return $wpdb->get_var( "
SELECT DISTINCT SUM(pm.meta_value)
FROM {$wpdb->prefix}posts as p
INNER JOIN {$wpdb->prefix}postmeta as pm ON p.ID = pm.post_id
WHERE p.post_type LIKE 'shop_order'
AND p.post_status IN ('wc-processing','wc-completed')
AND pm.meta_key LIKE '_order_total'
AND pm.post_id not in(SELECT post_id from wp_postmeta WHERE meta_key = '_billing_first_name' AND meta_value ='abc' )
" );

Diagonal disorder in SQL query in WordPress

I have a problem when doing a SQL query in WordPress, I would like to have each Post ID in a single row with the meta_key columns, but I get several uneven records.
SELECT P.ID,
IF(PM.meta_key = 'nombrem', PM.meta_value, NULL) AS nombrem,
IF(PM.meta_key = 'generom', PM.meta_value, NULL) AS generom,
IF(PM.meta_key = 'tiempom', PM.meta_value, NULL) AS tiempom,
IF(PM.meta_key = 'urlm', PM.meta_value, NULL) AS urlm,
IF(PM.meta_key = 'imagenm', PM.meta_value, NULL) AS imagenm
FROM K1nG_posts AS P
LEFT JOIN K1nG_postmeta AS PM ON ( P.ID = PM.post_id )
WHERE P.post_type = 'post'
AND (P.post_status = 'publish' OR P.post_status = 'private') ORDER BY P.post_date DESC
By placing the above code I get the following in phpmyadmin, I want a single post ID to have each meta_value value in a non-diagonal horizontal column as shown.
You seeem to be looking for conditional aggregation. For this, you would need to add a GROUP BY clause and surround your conditional expressions with an aggregate function:
SELECT P.ID,
MAX(CASE WHEN PM.meta_key = 'nombrem' THEN PM.meta_value END) AS nombrem,
MAX(CASE WHEN PM.meta_key = 'generom' THEN PM.meta_value END) AS generom,
MAX(CASE WHEN PM.meta_key = 'tiempom' THEN PM.meta_value END) AS tiempom,
MAX(CASE WHEN PM.meta_key = 'urlm' THEN PM.meta_value END) AS urlm,
MAX(CASE WHEN PM.meta_key = 'imagenm' THEN PM.meta_value END) AS imagenm
FROM
K1nG_posts AS P
LEFT JOIN K1nG_postmeta AS PM ON P.ID = PM.post_id
WHERE
P.post_type = 'post'
AND (P.post_status = 'publish' OR P.post_status = 'private')
GROUP BY P.ID, P.post_date
ORDER BY P.post_date DESC
Group the data by P.id and max the ifs out
like
SELECT P.ID,
MAX(IF(PM.meta_key = 'nombrem', PM.meta_value, NULL)) AS nombrem,
MAX(IF(PM.meta_key = 'generom', PM.meta_value, NULL)) AS generom,
MAX(IF(PM.meta_key = 'tiempom', PM.meta_value, NULL)) AS tiempom,
MAX(IF(PM.meta_key = 'urlm', PM.meta_value, NULL)) AS urlm,
MAX(IF(PM.meta_key = 'imagenm', PM.meta_value, NULL)) AS imagenm
FROM K1nG_posts AS P
LEFT JOIN K1nG_postmeta AS PM ON ( P.ID = PM.post_id )
WHERE P.post_type = 'post'
AND (P.post_status = 'publish' OR P.post_status = 'private') ORDER BY P.post_date DESC
GROUP BY P.ID;

Query MySQL and FROM_UNIXTIME Epoch

I have a problem when ordering an epoch field, it does not return the results ordered by date. Then I show you my code.
SELECT P.ID,
MAX(CASE WHEN PM.meta_key = 'nombrem' THEN PM.meta_value END) AS nombrem,
MAX(CASE WHEN PM.meta_key = 'generom' THEN PM.meta_value END) AS generom,
MAX(CASE WHEN PM.meta_key = 'tiempom' THEN PM.meta_value END) AS tiempom,
MAX(CASE WHEN PM.meta_key = 'urlm' THEN PM.meta_value END) AS urlm,
MAX(CASE WHEN PM.meta_key = 'imagenm' THEN PM.meta_value END) AS imagenm
FROM
K1nG_posts AS P
LEFT JOIN K1nG_postmeta AS PM ON P.ID = PM.post_id
WHERE
P.post_type = 'post'
AND (P.post_status = 'publish' OR P.post_status = 'private')
GROUP BY P.ID, P.post_date ORDER BY FROM_UNIXTIME('tiempom')
The format of the "tiempom" field is as follows:
1570480237
I get the following error.
Warning: # 1292 Wrong truncated DECIMAL value: 'tiempom'
you can either
GROUP BY P.ID, P.post_date ORDER BY FROM_UNIXTIME(tiempom)
or use backticks `
GROUP BY P.ID, P.post_date ORDER BY FROM_UNIXTIME(`tiempom`)
Because mysql thinks you want to convert the string 'tiempom' into a datetime .

Retrieve all WooCommerce products without image that are in stock via SQL

I use this query sql to retrieve all products without image
SELECT id
FROM `wp_posts`
WHERE id NOT IN (SELECT post_id FROM `wp_postmeta` WHERE `meta_key` =
'_thumbnail_id')
AND `post_type` = 'product'
AND `post_status` = 'publish'
Now I would retrieve all products without image and stock status in stock, is there a way to do it?
The following SQL Query will allow you to retrieve products without image that are "In stock":
SELECT ID
FROM wp_posts p
INNER JOIN wp_postmeta pm ON p.ID = pm.post_id
WHERE ID NOT IN (SELECT post_id FROM wp_postmeta WHERE meta_key = '_thumbnail_id')
AND p.post_type = 'product'
AND p.post_status = 'publish'
AND pm.meta_key = '_stock_status'
AND pm.meta_value = 'instock'
Or you can query it using WPDB Class through php like:
global $wpdb;
$product_ids = $wpdb->get_col( "
SELECT ID
FROM {$wpdb->prefix}posts p
INNER JOIN {$wpdb->prefix}postmeta pm ON p.ID = pm.post_id
WHERE ID NOT IN (SELECT post_id FROM {$wpdb->prefix}postmeta WHERE meta_key = '_thumbnail_id')
AND p.post_type = 'product'
AND p.post_status = 'publish'
AND pm.meta_key = '_stock_status'
AND pm.meta_value = 'instock'
");
// Raw output
print_r($product_ids);

Retrieve Wordpress post with featured image/thumbnail in one sql query

here's my code :
SELECT p.ID, p.post_title,
MAX(IF(pm.meta_key = 'featured_image', pm.meta_value, NULL)) AS event_imgID
FROM wpgp_posts AS p
LEFT JOIN wpgp_postmeta AS pm on pm.post_id = p.ID
WHERE p.post_type = 'product' and p.post_status = 'publish'
GROUP BY p.ID
event_imgID retrieve the ID from postmeta but the img url is stored in the wpgp_posts in the guid column
How to achieve this ?
You can join in the table to get more information about the image:
SELECT . . .
FROM (SELECT p.ID, p.post_title,
MAX(CASE WHEN pm.meta_key = 'featured_image' THEN pm.meta_value END) AS event_imgID
FROM wpgp_posts p LEFT JOIN
wpgp_postmeta pm
ON pm.post_id = p.ID
WHERE p.post_type = 'product' and p.post_status = 'publish'
GROUP BY p.ID
) pi LEFT JOIN
wpgp_posts wp
ON pi.event_imgID = wp.guid
I finally found the way to do it. I had to search thumbnail_id instead of guid :
SELECT
p1.ID, p1.post_title,
MAX(IF(pm.meta_key = 'listing_event_date', pm.meta_value, NULL)) AS event_date,
wm2.meta_value as event_img
FROM
wpgp_posts p1
LEFT JOIN wpgp_postmeta AS pm on (pm.post_id = p1.ID)
LEFT JOIN
wpgp_postmeta wm1
ON (
wm1.post_id = p1.id
AND wm1.meta_value IS NOT NULL
AND wm1.meta_key = '_thumbnail_id'
)
LEFT JOIN
wpgp_postmeta wm2
ON (
wm1.meta_value = wm2.post_id
AND wm2.meta_key = '_wp_attached_file'
AND wm2.meta_value IS NOT NULL
)
WHERE
p1.post_status='publish'
AND p1.post_type='product'
GROUP BY p1.ID, wm2.meta_id
ORDER BY
event_date ASC
Thanks

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