WordPress stores user generated content, along with other configurable information, in a a database (typically MySQL).

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5
votes
2answers
19k views

How to get the post publish date outside the loop?

I need to pull out the post publish date in order to make the post post auto expire. The thing is I can't get the right publish date. Here is my code: global $wpdb; $post_ids = $wpdb->...
5
votes
2answers
1k views

Does dbDelta delete columns as well?

I created a table using the dbDelta function and then removed a few columns and added a few. The new columns did get created but the old columns did not get deleted from the table. Is there a ...
4
votes
2answers
3k views

Special characters in WordPress UTF-8 [closed]

I have a problem regarding special characters that are appearing messed up on the front-end . mainly the get converted to question marks, or something like �?) Example - Frédèric becomes Fr�d�ric. ...
3
votes
5answers
3k views

How to run Two Wordpress blogs with different themes and with single database and same content

How do you run two Wordpress blogs with different themes using one database where the content remains the same in both sites? The issue that I am getting is at the Domain mapping in both blogs.
3
votes
2answers
481 views

Custom database or Custom Post Types?

I have been searching throughout the web for the best way to implement what I need but just cannot find a best solution as there always seems to be some drawback. I'd prefer to do it right the first ...
2
votes
1answer
592 views

storing database in version control

I am using a version control system to manage my wordpress code (git). What is the betst way to store the database information into version control? I want to go to my staging machine, run git pull ...
2
votes
2answers
318 views

What is an efficient way to query based on post_meta?

The problem I am having is when I allow users to filter posts it overpowers the database and things run extremely slow. I am unsure what the best way to query posts using meta values is. My site has a ...
2
votes
2answers
851 views

Using Disqus, how to stop storing comments in wp database?

I'm using disqus comments system, but it keeps storing the comments in the wordpress database as well. Is there way to disable option to store comments in wordpress database because I don't see any ...
1
vote
1answer
2k views

How to make sense of the active_plugins option_value to enable and disable certain plugins from the database?

Can anyone explain how to interpret and make sense of the active_plugins option_value string in WordPress. And then use this string/ array to disable and activate specific plugins? Here is an example:...
1
vote
2answers
1k views

how to transfer wordpress sql/database from local to live

So for backing up any/all my wordpress sites i use a tool called "BACKUP BUDDY" and its a great tool and all but lately its been really buggy and today finally it went kaboom! Usually my workflow is ...
1
vote
1answer
3k views

How to build a movie database with wordpress?

I'm looking for a plugin to build a movie database like Popcritics The plugin would permits me to add custom info (like CustomPress can do) about a movie. Ultimately, the plugin could permit users ...
0
votes
1answer
4k views

How To Find Out Wordpress Category Table in MYSQL?

I know WordPress stores all post data in 'wp_posts' table. But here WordPress not define any category id or reference related with it. Please let me know, how 'wp_posts' table find out exact category?...
0
votes
1answer
1k views

Front-end update_post_meta with ajax

as written in title I'm trying to update a post_meta using Ajax. Actually I'm a complete newbie to Ajax and how it works so, if it is possible, I would appreciate if someone could 'take me by hand' ...
0
votes
2answers
5k views

Connect to remote database using Localhost install

I will be designing and developing a website for a client but want to allow the client to add content while I am working on the design and development of the site so that it is pretty mich done by the ...
4
votes
5answers
3k views

How many users can WordPress handle?

I want to design a member login site in WP but I have a doubt that is WordPress can handle more than 40000 users on same database? I am not sure about this so I am stooping my work here. So please ...
3
votes
2answers
74 views

What is the added “complexity” of custom tables?

Wordpress Codex says: Think very carefully before adding a table because it adds complexity to your plugin that many users and site builders prefer to avoid. Why is it so? Adding more tables is ...
3
votes
2answers
818 views

How to delete custom field “suggestions” from dropdown list

When you use a standard custom field in WP you have to write the name of the cusotm fields the first time. The second time you use a custom field it sticks to the custom fields dropdown list. But, ...
3
votes
1answer
1k views

How to convert regular categories to custom taxonomy?

I have a big list of categories/subcategories (around 60 in all). It now makes sense that instead of these categories being available to any post type's category list, these categories should be moved ...
2
votes
1answer
57 views

Text snippets shared across posts

I'd like to add a "fast facts" section to a wordpress site - an area in the sidebar where snippets of text are rotated. Where is the best place to store things like this? Widgets don't really allow ...
2
votes
2answers
549 views

What's the most efficient database method to add and query usermeta?

What's the most efficient way - concerning the database - to add and query extra usermeta fields to a profile? I need to add four additional fields of numeric and text data to a user profile and then ...
2
votes
1answer
2k views

Split WP install between 2 databases?

Is it possible for Wordpress to work from two databases? The reason I ask is that we're approaching our 100mb limit for database size on our host (1and1) but have up to 100 databases, so what I was ...
2
votes
2answers
2k views

WordPress Database Charset/Collate

Is there an easy way of getting the charset and collation of the DB tables in WordPress without resorting to SQL queries?
2
votes
1answer
324 views

What Is The Difference Between suppress_errors() And hide_errors() in $wpdb?

What is the difference between the suppress_errors() function and the hide_errors() functionin wpdb class? What is the use of each function?
2
votes
1answer
234 views

Can I store my custom comment_type into wp_comments table?

I'm developing a system where a post can have multiple replies/feedbacks. As of now I's storing each of the comments as a serialized postmeta. But just today I figured out that I can use the existing ...
2
votes
1answer
522 views

Best way to move live site local

I'm trying to move a big site that's currently live onto my local machine so I can edit locally. I'm using Wamp Server. I've tried using the Duplicator plugin but I'm getting several warnings and ...
2
votes
1answer
341 views

How do I write this SQL statement for Posts written in last 24 hours?

Someone gave me this SQL code to count the number of posts (of post_type 'mixtapes') in the last 7 days. I tried to convert it to 'in the last 24 hours' as well, but it's giving the wrong number. ...
1
vote
0answers
409 views

Strange Deadlock database error for the query “Delete From wp_options”

I'm experiencing a strange Database error in these days, and it could the the cause of the slowness of my website (tasc.it) in these days. I found this error in the PHP error log, I can see about 4-5 ...
1
vote
1answer
1k views

Use Custom Database with Custom Post Type

I decided to ask this question as searching online left me really overwhelmed and not knowing which direction to take. I am about to tackle a project that has its own custom database (finished e-r ...
1
vote
2answers
1k views

Custom Taxonomies Incorrectly Counting Revisions?

(Moderator's note: The original title was "The count of my custom taxonomy is incorrect; it's counting revisions") Has anybody run into this before? I've added two custom taxonomies, and the count ...
1
vote
1answer
326 views

Hello dolly type plugin that allows people to add their own

I am making a plugin that shows a random joke on a custom 404 page via shortcode and it is basically near enough the same as the default hello dolly plugin, where the jokes are hardcoded into the ...
1
vote
1answer
196 views

Prevent WordPress from loading comments

I'm displaying the comments for a post my way, using $comm = get_comments() and then passing $comm to wp_list_comments() (this is the reason why). How to disable WordPress from loading comments from ...
1
vote
1answer
560 views

Migrating WPMS from apache to IIS7 causes Database Error

// Be sure to read the updates at the bottom I have a large multisite installation hosted on XAMPP on an XP 2003 server and am trying to move it from XAMPP/Apache to a new Windows 2008 server with ...
1
vote
1answer
433 views

Custom post type Vs. data in own table

I'm trying to get started with WP development. So far I've been using it with other's people plugins and themes so I'm kind'a stuck. I've read many many many things about, but I can't find simple ...
0
votes
2answers
173 views

Wordpress page title repeated in SOME pages

I have created a Wordpress site and titles were working just fine. Then, some time and plugins installed later, I noticed that in SOME pages I get the title repeated 2 times. Example of wrong page ...
0
votes
1answer
374 views

Hook to be used when creating a database table

I read the Codex and some other tutorials describing the process of creating a new table for WordPress. I thing that the steps are pretty straightforward; however, I'm encountering a small problem. ...
0
votes
1answer
273 views

Does WordPress cache get_user_meta() results?

If I call get_user_meta() to retrieve a value, does WordPress cache the value? If I call get_user_meta() to retrieve the same value, does WordPress have to query the database again or is it stored in ...
0
votes
2answers
98 views

Database custom table issues - incorrect result displayed

First things first: I've spent most of today going over these forums; the stackoverflow forums; the php.net manual; and a bunch of random sites I found through Google Search - so, if I've missed the ...
0
votes
0answers
396 views

Would manually deleting the dumping data fix a “#1062 - Duplicate entry '1' for key 'PRIMARY'” phpMyAdmin error?

I'm new to PHP! I'm trying to import an SQL database file into myPhpAdmin for a WordPress I'm migrating, but I keep getting this error message: SQL query: `-- -- Dumping data for table `...
0
votes
1answer
164 views

Is altering a default WordPress database table update safe?

I want to add some table columns to the wp_terms table. Is it safe to use the dbDelta function with a modified CREATE-MySQL query for this? Or will I run into problems in the long turn? Is it update ...
0
votes
2answers
1k views

Error establishing a database connection when migrating site to localhost

I'm wanting to make a version of my blog on my home computer that I can work on offline. I set up LAMP on my computer (running Ubuntu) and copied all of my files from my server (000 Webhost) with ...
0
votes
3answers
1k views

What is the fastest way to generate a unique id number when registering a user

I have a client who wants to register users and give them a unique ID number when they complete registration. (Kind of a member number sort of thing) Can I just setup the WP member table to start id ...
0
votes
3answers
5k views

How to delete all records from or empty a custom database table?

I can't seem to find a simple reliable way to do this - perhaps?: // delete row ## global $wpdb; $delete = $wpdb->query( $wpdb->prepare( "DELETE * FROM `wp_table_name`" ) ); ...
0
votes
2answers
1k views

What are the additional fields in wp_comments used for?

I'm working on a rather odd implementation that stretches the limits of WP a little - its a healthcare site where patients are a custom post type and procedure requests related to each patient are ...
0
votes
1answer
1k views

“MySQL server has gone away” since update to 3.8

I have a WordPress install on a dedicated server with decent memory (upwards of 8GB). The WordPress install includes many plugins - 50 active plugins. Most important to note is the WPML plugin to ...
0
votes
1answer
592 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 ...
0
votes
1answer
44 views

Ajax not working to insert, query and result data

On my site, through a form I send/register same information in database, do a SELECT/query and return it! Return the last table saved in database, just that user just entered on the form (along with ...
0
votes
2answers
37 views

Change options table prefix only

I am not able to find, How can I change the only options table prefix. I do not want to change other tables prefix only need to change options prefix. Please guide me. Thanks
0
votes
1answer
151 views

How to sort results from a custom database table

I've created a custom WordPress database table which I'm using to store 'likes'. The columns I have are: id post_id user_id I'm now trying to get an array of post IDs that a particular user has '...
0
votes
2answers
133 views

Can't update database after wordpress update from 3.8.1 to 4.4.1

I have just updated wordpress 3.8.1 to 4.4.1. Tried to update in various ways: Before updating I have deactivated all the plugins and switched to the default theme provided by wordpress i.e. ...
0
votes
1answer
218 views

After moving my site from a dev subdomain, to root, all my custom meta data is gone

I just movde my site from a dev subdomain, to the root. I have extensive amounts of data saved in custom meta fields which I created with the WpAlchemy class. All of this data is not appearing in ...