Why do you want to change the table names?
Do you want to change all of them?
… and you’re not looking for a way to change the table prefix wp_ ?
I guess you’re looking for a way to use for example:
wp_my_posts
instead of
wp_posts
Here’s an untested idea:
/**
* Change the posts table name from 'wp_posts' to 'wp_my_posts'
*/
add_action( 'registered_taxonomy', function(){
global $wpdb;
$wpdb->posts = 'my_posts';
});
where registered_taxonomy is just a hook that’s fired very early.
We might have to find a more suitable hook.
Hai Birgire,
It’s not the prefix that I want to change.
The reason why I want to change the name of the table is due to a project that requires a relevant table name.
It has something to do with woocommerce. It stores products in wp_post.
I want it to be stored in let’s say…in wp_products.
I’m thinking about creating a new table with that kind of name and the same structure or just change the name of the existing wp_post.
Do I have to really change the table name? Yes.
You can try:
/**
* Change the posts table name from 'wp_posts' to 'wp_my_posts'
* Version #2 - The 'muplugins_loaded' action
*/
add_action( 'muplugins_loaded', function(){
global $wpdb;
$wpdb->posts = 'my_posts';
});
where muplugins_loaded is the earliest action hook available.
You can also hijack the query filter, that’s fired before the muplugins_loaded action:
/**
* Change the posts table name from 'wp_posts' to 'wp_my_posts'
* Version #3 - Hijack the 'query' filter, the first time it's fired.
*/
add_filter( 'query', 'b2e_change_table_name' );
function b2e_change_table_name( $query ){
remove_filter( current_filter(), __FUNCTION__ );
global $wpdb;
$wpdb->posts = 'my_posts';
return $query;
}
It might also be worth trying this in the global scope:
/**
* Change the posts table name from 'wp_posts' to 'wp_my_posts'
* Version #4 - The global scope
*/
global $wpdb;
$wpdb->posts = 'my_posts';
before any action/filters are fired.
Does this work for you?
Well, I have tested the three of them, by putting them in functions.php and then change ‘my_posts’ according to my table name without the prefix.
But they all still don’t work.
The WP still can’t read the name altered table.
Wait a minute, I have to include the table prefix in order to make your suggested codes working.
$wpdb->posts = 'wp_my_posts';
well, in my case I change wp_my_posts according to my table’s name.
Code No.1 doesn’t work though.
But code No.2 and 3, they work!!
To be honest I can’t get my head around code no.1 and no.2, even though I can see the big picture.
No.3 certainly the simplest way to do it.
Thank you, Birgire…
@ekajuan Thanks for reporting back, glad to hear it worked for you 😉
Hopefully this will be useful to others in the same situation.
You should then consider marking this thread as resolved.
Best regards
ps: probably the hook is fired to late in #1.
