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

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286 views

post_content getting cut off on blank space on $wpdb->update

I am publishing the following post via xmlrpc <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> <html><head><meta ...
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28 views

Codex: Database Description: meaning of Cardinality

The following post outlines how to word cardinality is commonly used when dealing with databases: http://stackoverflow.com/questions/10621077/what-is-cardinality-in-databases. However I have not been ...
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56 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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398 views

$wpdb->insert() does not Insert record in a table

I'm trying to understand and get hold of the $wpdb global object but can't seem to make it work. Basically, I'm trying to insert a single record into a custom table in wordpress DB. Instead of ...
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37 views

Allow user role “salesman” to view only “client” role users

I have created two new roles in my theme, salesman and client. I want, when "salesman" is logged in to be able to view and edit only "client" users. I am trying this code (taken from an answer in this ...
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156 views

Wordpress running SQL query to update database from form

Basically I want to take information in from a form and use a separate php page to update the database. so here is the original wordpress php page (add_person.php): <?php /* Template Name: ...
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48 views

Sorting main query by custom taxonomy slug

Is there a way to sort posts by custom taxonomy (shoe_color) ASC|DESC? I would like to do this using query_posts and passing the orderby=shoe_color into it. Here is the code I'm trying to work out: ...
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120 views

Changing status of Published posts which have less Content to “Draft”

function draftpost(){ global $wpdb; $prefix = $wpdb->prefix; $wpdb->query("UPDATE ".$prefix."posts SET post_status='draft' WHERE LENGTH( post_content ) <500"); } ...
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485 views

$wpdb->get_results() returns good result only in first foreach iteration

I've got strange issue when I am using $wpdb->get_results() in content-single.php in Twenty Eleven theme. $wpdb->get_results() returns proper values only in first loop iteration. I've got simple ...
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36 views

Code only works every other time its run

This code below works fine as long as I leave the $wpdb query commented out. However, I'm trying to clear the current settings before I write the new ones into the db. That's the purpose of the $wpdb ...
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176 views

Query most popular terms by taxonomy over 2 week period

I have written SQL for a query that pulls the most used taxonomy terms for selected taxonomies that are published, do not have a parent post are not in a comma separated list over the past two weeks ...
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159 views

wpdb updating record in wordpress with json adds extra array elements

This is killing me - I keep getting magical array elements added to my updated array in WP. For example if my query is (var_dumped below): string(70) "UPDATE wp_mytable SET already_played = '[9]' ...
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177 views

How to display users with posts published between two dates (Sorted by Post-Count) [Multisite]

I'm trying to make a list of users who have published posts within two given dates. My attempts using WP_User_query just work for one blog ID and takes time to load because it runs through a lot of ...
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9 views

How can I retrieve data from alternate database using wpdb class?

I'm attempting to retrieve data from a separate WordPress installation on the same server. I'm able to use the wpdb class to successfully connect to the alternate database and get results, however, I ...
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13 views

Issue On WordPress multisite its create new table for each user

I am using WordPress for multisite all configuration are right, but it's create new table for each user like (wp_1_options, wp_2_options, wp_3_options etc for each table) it's a very big issue for me. ...
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16 views

How to make iteration on wpdb->update or query statement?

I want to change post_names with iteration; I have similar post names and want to change them by foreach iteration. Initial post name is "one-book" and there are 30 similar names. I want to change ...
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12 views

Error establishing database connection on app engine

Error establishing database connection on app engine after deploying wordpress. I got an error Notice: Undefined property: batcache::$query in ...
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14 views

wpdb custom tables without plugin

I am using custom tables, with $wpdb, trying to perform basic queries at the moment. I can't find anything on manually creating tables then using them with $wpdb, everything is plugin related. I ...
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19 views

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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27 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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17 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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21 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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17 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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26 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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50 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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12 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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24 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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144 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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74 views

Query Distinct Taxonomies of Custom Post Type

I have a custom post type called "coupons". These coupons can then be drilled down by "city". City is a custom field that is defined for each individual "coupon". I am then trying to modify a sidebar ...
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92 views

Get thumbnail using wpdb from external wordpress database

I'm trying to get thumbnails from posts using a wpdb query where the wordpress database I'm querying is not the one from which the wpdb query is being called. That may be a little unclear, so here is ...
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64 views

There is way to improve this query? wordpress get post data and some meta data

Suppose we have 2 blog with different database A and B. I want to get some post from Blog B to show them on Blog A. The problem comes when the posts have much metadata (custom field for example) that ...
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47 views

Run query once inside a loop

I am trying to prevent to much queries inside a plugin one of my plugins. I have a query inside a function which will output a complete block with some layout elements and an input element which will ...
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55 views

Best way to execute custom page-specific mysql queries

I would like to query a secondary mysql database (not the Wordpress mysql database) with page-specific queries. I've seen many answers / tutorials on setting up a secondary mysql database, like: ...
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33 views

Proper way to trigger a MySQL query via link in a plugin

I am trying to develop a module in my WordPress plugin that will delete an entry from the database. The only issue is related to the trigger action. I've tried to send my users directly to the page ...
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58 views

Using the same shortcode to show any table from the database

I have a little question for you. I want to create a shortcode that makes a table with data that I have stored in a database. But i want to send the shortcode an attribute, to specify which table ...
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39 views

$wpdb: how to use a query as a base for another query?

I've got this query: select p.ID, p.post_title, p.post_content, t.term_id, tt.taxonomy, t.name, t.slug, tt.count from bdu_posts p inner join bdu_term_relationships rel on p.ID = rel.object_id inner ...
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55 views

Update tags to 10,000+ posts with wpdb?

I have over 10,000 posts on a site which all need to have a tag added to them. WP_Query is either running out of memory or timing out on my server and in the past running large queries with this ...
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52 views

Order users by 2 custom fields in wpdb query

I've created a WordPress members site, each member is a user with the role of subsriber and has extra information set as custom fields - ie: address, contact details etc. I have the users output by ...
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78 views

Querying the DB to get sum of column from custom meta box (only published posts)

I am trying to get the SUM total of a custom meta box, from all published posts, from a custom post type. By using $wpdb I am able to get the sum from all of the posts (published and otherwise), but ...
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2k views

AJAX with Selectbox Plugins (Select2, Chosen, Selectize)

I have been searching all over the internet for tutorials on implementing AJAX actions from jQuery selectbox plugins such as Select2 , Selectize and Chosen. (these plugins look better than the inbuilt ...
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33 views

How Can I Put Meta_Compare in the Database-Query?

Yes, I know that this can easily be done with built in wp_query but I need this in Wpdb query. I have a custom field and I need to display posts where this field does not exist. By the way can I get ...
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53 views

$wpdb->prepare - supporting multiple search terms

I am trying to write an escaped SQL statement, for example: $sql = 'SELECT * from TABLE where column LIKE %searchterm% AND column LIKE %searchterm2%'; Except I don't know how to handle it, as I do ...
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26 views

After importing data to new DB with new name, receiving a constant MySQL warning

I've just spent several hours trying to understand why a WP install is really slow, I tracked it down to the database and realised everything in the db was just running super slow with the debug bar ...
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76 views

Wpdb generates too many queries

I googled for hours, then found some codes on stackexchange (http://wordpress.stackexchange.com/a/108279/108270) and created the codes below. I'm trying to get alphabetical A-Z posts lists (e.g. A B C ...
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40 views

$wpdb sort order

$meta_key1 = 'first_meta'; $meta_key2 = 'second_meta'; $postids = $wpdb->get_col( $wpdb->prepare( " SELECT key1.post_id FROM $wpdb->postmeta key1 INNER JOIN $wpdb->postmeta ...
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89 views

why is $wpdb->update() causing a DB error from within wp_set_password()

I have a page-template for my custom theme that enables the user to reset their password from the front-end. I'm calling wp_set_password() and everything runs but the password is not changed in the ...
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25 views

Calculation for each custom post type

I have a code looking like something like this: (It calculates number of registered members for each course) foreach($courses as $course) { global $wpdb; $sql = "SELECT COUNT(*) FROM ...
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33 views

Any issues changing username from wpdb in admin

I'm building a plugin that will have a custom sign up process built in. I would like the users to be able to change their username if needed, since I am using their email address as the username. I ...
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113 views

Wordpress plugin tables become corrupt

I have written a plugin that creates and uses 3 database tables. On rare occasion, all 3 database tables become corrupt but no other tables in the database exhibit similar conditions. It is pretty ...
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97 views

esc_sql inserting weird chars to DB

I am using esc_sql function for making safer SQL operations but i am mysteriously getting ? and &nbsp; in the DB table how can i avoid them. Edit : Here is my array after esc_sql() Array ( ...