Set Twitter language for WordPress oEmbeds

The oEmbed tweets on my hosted blog have been coming up in Chinese for the last few months, and I’ve been unable to resolve the situation with my web host. Add this to your theme’s functions.php if you are having the same issue; it will check the WP_LANG setting in wp-config.php and update the request to Twitter accordingly.

The filter that allows this functionality was added in WordPress 3.5.

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Remove posts with category (or categories) from BuddyPress Activity Stream

This was tricky and took me several attempts to figure out how to gracefully remove posts in a specified category from the public BuddyPress Activity Stream. Proposed solutions took the approach of stopping the activity from being added to the table; however, this raised issues when an existing post was updated and put in the excluded category, and also when an excluded post was updated to no longer be in the excluded category. Additionally, these posts were not included in the author’s individual Activity Stream, which led to further confusion.

I had to move bp_blogs_record_post from save_post to wp_insert_post to allow _save_post_hook to clean the post cache prior to running in_category().

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