Hey,
I would seriously advise against doing a date comparison with post meta (could be really slow if you have a lot of events). What this plugin really does is to use date_query to filter post and you would have to do some custom manipulation to get to your desired output. It could be done though!
If I were you, I would extend this plugin with your own implementation of some of the methods. Please take a look at this article: https://jonathanbardo.com/2014/12/extending-a-wordpress-plugin-coded-as-a-class/
Any chance I could commission you to assist with this task? I believe this would be much more efficient than taking this on myself. I am WP code savvy but it seems your knowledge of this stuff is more advanced. Please advise.
Normally I would be glad to assist you but I honestly have a little too much on my plate at the moment. If you want to take a spin at it I can code review it quickly to help you.
Hi,
I can’t even figure out how to filter for post_modified using the filter you posted on the Plugin Page.
As to the problem mentioned above my approach would be to write the dates into a new column (or even the post modified column) in the wp_posts table for the event post type.
ak
(@apkoponen)
BTW, this should work for the original problem (add to functions.php).
http://pastebin.com/1HfMYSUZ