The wpdb class, accessed via the $wpdb global variable, is used to interact with the WordPress database

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WordPress database error on a query working fine in MySQL Workbench

On activating my plugin Wordpress adds an entry to the error log... WordPress database error for query SELECT * FROM wp_c2pprojects WHERE projectid = 20 made by ...
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56 views

Add delete/edit button to each row in an SQL table (Wordpress Backend)

I have a form that is submitting entries to a table in the backend of my Wordpress installation. I would like to add edit/delete buttons to each row so that an administrator can delete submissions or ...
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19 views

Returning error with WP Insert without getting an error in error log

I'm checking if a key exists in my database using $wp_db->insert() and am executing code based on the result. I know that if a row already exists it will return false and I want to use that to execute ...
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2answers
602 views

Inserting data into `post meta` table?

How would I be able to insert data into the post meta table? I know how querying and wpdb works but I have no idea how I can just insert it into the table. I have these two fields I want to insert ID ...
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2k views

Using $wpdb to query posts with meta value containing current post_id

I am trying to to use $wpdb to retrieve a list of posts from the Database where the meta_value in the wp_postmeta table contains the current post_ID in inverted commas. eg. "10" The inverted commas ...
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76 views

Can't update multiple rows with $wpdb query

it seems that I cannot update multiple rows to change the post_type of posts having a specific tag. I follow different method, even if it seems the good one is this one : global $wpdb; $result = ...
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1answer
568 views

How to check for empty and not a failure

I'm querying the postmeta table to see if a url has already been entered, using this statement (where $thisLink is the url I'm checking) $mypostids = $wpdb->get_results("select * from ...
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What's wrong with my $wpdb prepare

I can't get my head around this. I get this error: Parse error: syntax error, unexpected '"' in 224. The line is this between foreach $html: $html = ''; foreach ( $recent_across_network as $post ...
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34 views

Can I use $wpdb for my custom tables in the WordPress database?

I am building a custom application based on WordPress. I have my custom tables in the WP database. Can I use $wpdb to work with them, or is that class solely for the WP related tables? For example, ...
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39 views

foreach loop inside the loop creating duplicates in output

I have a foreach loop inside the loop that is getting info from a separate table. The table has a column that has an id that reflects the id of the post type so it should always be unique. When I ...
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24 views

How to operate two wordpress databases simulataneously?

I am having a situation, where i have two wordpress sites. One is for saving the data and content and other is for showing the data/content. Now the situation is, i want a user to register on one ...
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2answers
3k views

WordPress Paginate $wpdb->get_results

Due to a complex multisite config, I have a query which combines the posts from two blogs and I would like to paginate the results. I am grateful for any help. I have posted my query. ...
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20 views

How To Structure A Wordpress Database Query?

I have an array containing the IDs of the rows I want to update: $matches = array('abc123', 'def456', 'ghi789'); Rows with those IDs must be updated so that their 'confirmed' value is changed from ...
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1answer
199 views

$wpdb->update multiple rows, like IN in normal SQL

I was wondering if it is possible to use $wpdb->update to update values for multiple rows like with IN in "normal" SQL. I want to accomplish something like this example; UPDATE [table] SET [column_1] ...
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1answer
26 views

wpdb getting avatars and author url

Running an SQL query to pull authors by votes they've received on posts. @bonger helped me out on my first post and helped me get this working great, but I created this new question since it's a ...
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3answers
95 views

Insert custom postmeta when custom post type published

I'm trying to populate the postmeta table with a custom value when a custom type ('my-solutions') is published. I've read a few threads, the Codex and Pippin's blog on this matter and tried many ...
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87 views

$wpdb select date range of posts

0 down vote favorite Using this SQL query to sort users by how many votes(meta key) their posts have received. <?php global $wpdb; $results = ...
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41 views

Processing form post data using database queries to construct custom query string

I have a form on my wordpress site. On form submission I want to: 1) Capture the form data 2) Run database queries using these data 3) Process the results and use these to construct a query string 4) ...
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39 views

Save/retrieve form data best practises for theme development

I'm building a theme and I have a custom page template with a <form> which is for the vistors to fill in and submit. I'm processing the data with help from hooks and this is all separated from ...
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1answer
54 views

Can't get result from sql using ajax result

I'm using an AJAX form to feed the code something to lookup in db. Separate table, not WP options. I'm getting the result from AJAX, but when I try to do the sql it just returns 0. This is the ...
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61 views

Fire query on ajax post url page

Here i am sending the ajax response to load_post.php page from my ajax call.I am getting response on load_post.php on load_post.php i have to fire word press query. I was try this but getting bellow ...
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13 views

How to detect if website has a mapped domain attached to it on multisite network

I'm trying to to detect if a website has a mapped domain attached to it on a multisite network. If not, disable search engine visibility. This is what I have so far: //* Disable search engine ...
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2answers
56 views

Wordpress insert NOW() in TIMESTAMP column returns all zeros

I want to insert a TIMESTAMP into my column's TIMESTAMP column, but I always get all zeros. Here is my insert: $now = 'NOW()'; // insert the date into the db $wpdb->insert( 'wp_date', ...
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4answers
8k views

get_results using wpdb

im trying to retrieve information on my wordpress database, i wanted to display all pages using this statement. but im getting a blank ARRAY global $wpdb; $result = $wpdb->get_results ( " ...
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1answer
77 views

How to update records using $wpdb?

I am migrating non-wp database to Wordpress (for the first time in my life, and hopefully the last). As both new and old websites are multilingual, one of the tasks for me is to connect the articles ...
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2answers
2k views

How to insert data to a database table when the field is not yet created?

Supposing I have an existing table(already created in dB) that handles user-registration (a plugin) and insert data using the $wpdB->insert like this: $success = $wpdb->insert( ...
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29 views

WPDB update is not working for tables with large number of columns

I am using a form to update a cutom WP datatable. The update function is working fine for all the table except one which have 14columns. I can delete the rows but can't edit any entries. For edit I am ...
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1answer
256 views

Is it true $wpdb->get_results is faster than WP_Query in most cases?

On my homepage, I have a section where I have to display the last five featured posts, where a featured post is simply a post with a custom field is_featured set to 1. I achieved what I want with two ...
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1answer
165 views

Action hook “wp_insert_post” works but not for last imported post

I want to run a custom function whenever posts are imported to my custom post type. I am currently running this code - function on_post_import($post){ global $wpdb; $results = ...
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1answer
78 views

Hook into $wpdb

Is there a way to hook into the WPDB instance ($wpdb)? What i basically want, is to execute a own function BEFORE the desired query get's executed. Is this possible? Additional question for comment ...
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1answer
19 views

Wordpress is trimming leading 0s

I am inserting into the DB in the following manner: // insert the info into the db $wpdb->insert( 'wp_vkrwps_table', array( 'zip' => $zip ), ...
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3answers
612 views

How to Modify this $wpdb query to accept an array of post statuses

I'm using this function from this accepted answer, which gets all values for a custom field key (cross-post). How could it be modified to allow an array of post statuses? function get_meta_values( ...
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3answers
128 views

How do I check for a duplicate record before inserting using wpdb

I am inserting a row into a custom table in a wordpress database. this is the code: $wpdb->insert( 'wp_pl_my_parts', array( 'user_ID' => $user_ID, ...
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1answer
27 views

Echo only gives me the first part of string

So I was pulling some meta_value and trying to use it in a mass email and tested it first by echoing what I obtain in the array. In var_dump I see the array and that it gets my correct data, but when ...
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50 views

WPDB - How to search a column in a table

I have a custom table called wpgrating I have a column there called "ip" Now what I want to do is search for "ip" column and see if there is an entry already there? How can I achieve this?
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332 views

wpdb::prepare was called incorrectly

I have this code to remove orphaned posts after deleting custom post type. It works, but this code... global $wpdb; $wpdb->query( $wpdb->prepare( "DELETE a,b,c FROM wp_posts a ...
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57 views

How to query custom post types with mixed AND & OR statements for custom fields

I have a custom post type "events" which includes the custom fields "is_premium" (which is a true/false) and "premium_expiry_date" which is a date picker. On my front end, I want to have "events" ...
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2answers
739 views

How to programatically change username (user_login)?

As in the title, how to programatically change user's login? I wanted to use wp_inser_user function, but it appears that when updating current user, it doesn't change his/hers username. Should I use ...
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1answer
46 views

store custom WP table names in a global variable

I was being creative and put this in one of the files loaded with my plugin. Are there implications with storing the table names this way? global $wpdb; if(!defined('DB_ARTISTS')) ...
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1answer
45 views

Get the alphabetical sorted data with wpdb

I have a function in my WP which get the data from database, Here is the function function thebook_get_provider_types() { global $wpdb; static $provider_types; if (! ...
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178 views

How to add more custom fields in user meta table simultaneously

I am working on a task in which i have to submit some records to user_meta table at form submitting. Actually it is related to employee data and i just want to add records in user meta table. I am ...
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1answer
42 views

$wpdb doesn't like to store arrays

I'm attempting to store an array that looks like the one below, into a cell in a database using the code below the sample array. Unfortunately, WordPress doesn't seem to want to save it, and ...
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1answer
27 views

Pulling values from a sepcific row in table

I'm trying to get the first and last name values for ONE person in a database where the meet certain conditions of being a team leader and having a specific project id. Because of this, it will always ...
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1answer
32 views

Active DB queries in Wordpress?

I just make some researches regarding to wordpress DB queries and I just wonder if I miss something a normal SELECT query for example in Codeigniter with active records would look like if I assume I ...
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1answer
27 views

wpdb->insert adds too many rows

I have the following code in my functions.php $ar = array( 'price_content' => 'hello' ); $result = $wpdb->insert('hs_prices', $ar); // insert 'hello' into 'price_content' This should ...
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5 views

WPDB Prepare error [duplicate]

I have just taken hosting on for a clients WP site and I am stumped with a WP error The site originally ran on 3.2 but I am upgrading to 3.9 and the client has an error on their them caused by a ...
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40 views

Slow getting posts from category

My blog has over 700,000 articles and my category structure as follows: -Cats Cat 1 (ID: 3) Cat 2 (ID: 4) Cat 3 (ID: 5) ... Cat 20 (ID: 22) I took the articles by using the following SQL ...
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1answer
79 views

How to make an sql query to exclude everything but custom taxonomy terms in table wp_terms?

Problem Summary: I am trying to write a SQL query that returns only my custom taxonomy terms, but the table (wp_terms) contains all of the terms, even ones that I don't want (such as category terms, ...
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1answer
58 views

Search Query that Includes Custom Table

I have a WordPress website that grabs product data from a custom table. I would like to be able to also search from fields in the custom table. Could someone provide a sample query of what this would ...
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1answer
106 views

wpdb insert and boolean fields

I'm preparing an insert query like this: $wpdb->insert('table', $data, $format); data array will be: $data = array_push($data, 'resp' => true) problem is, what $format shall i use for a ...