- Flush rewrite in plugin activation
- WP_Query and the_wp_query
Why putting flush_rewrite in plugin activation doesn’t work?
- We are using
inithook to register the CPT - But the
i nithook is called at very late in the core load
Then how to do it?
- Flush them on
inithook ?- Not the best way, it will flush it at every load.
- Register the CPT in activation function also, and then flush
- Good choice as activation will be called only once!
WP_Query , how the global query works
- We rarely have to make a custom WP_Query as the wordpress makes one for us.
- It parses the request url, and fire the query accordingly.
- Should we overwrite it ?
- it is safe to use new WP_Query and the loop to temporarily overwrite the global query
- use reset_post_data() or reset_query() function to reset it though.
- Maybe you don’t want to create a new query, in my case I just wanted to limit the number of posts per page on the archive page
- Is it a good idea to create a custom query for this?
- No, We can do this using the hook
pre_get_posts
Hers’s how i did it
public function limit_movies_per_page( $query ) {
if ( is_post_type_archive( 'rt-movie' ) && $query->is_main_query() ) {
$query->set( 'posts_per_page', $this->movies_per_page );
}
}
And in the constructor I hooked into the pre_get_posts
add_action( 'pre_get_posts', [ $this, 'limit_movies_per_page' ] );
$this->movies_per_page is a member of my class that can be set to a different value by calling setter.
1. Can we create a child theme of the existing child theme?
- No
- Well I tried it and it didn’t work.
I might have done something wrong, please suggest if you see in mistake in code. I am using the rtdating theme as parent for this.
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