Changing BLOG_ID_CURRENT_SITE breaks media

[gilbitron]

Say you upload media to the default site and a subsite while BLOG_ID_CURRENT_SITE is 1. The media locations are as follows:

• Default site: uploads
• Subsite: uploads/sites/2

When you change BLOG_ID_CURRENT_SITE to 2 the location of the media files changes so that it is now:

• Default site: uploads/sites/1
• Subsite: uploads

However no files are moved which results in broken media.

[ocean90]

Related/Duplicate: #28365

What's the use case for changing BLOG_ID_CURRENT_SITE at a later date?

[gilbitron]

I'm not sure when someone would want to change their default site but I suppose it might happen. Regardless if you're going to allow the setting to be changed then it shouldn't break things.

[wonderboymusic]

While the naming convention is horrible, this is a semi-impossible situation for us to help you recover from in code. You will have to move the files yourself. Changing BLOG_ID_CURRENT_SITE is by hand a brute force tactic.

[jeremyfelt]

Thanks for the ticket, @gilbitron. I'm going to close this as a duplicate of #28365 as it deals with the location of media as well.

I'm not sure there's much we can do about it, but we can give it some thought.