How do I create a custom meta box for posts which have a boolean data type and can be true only for one post. I want it to be falsified for all other posts when it's set on one post.
- Is there a hook that runs right after a custom field is saved in the create post screen?
- Is there a way to do this with the metabox plugin?
- For example if you want to create a featured post feature, only one post can be a featured post. Is there a way to create a single featured post without using custom meta boxes?