Let's say I have a collection of blog posts. Each blog post has a field called tags, which is an array of strings.
When I retrieve these posts, I pass an array of tags called requirements. I want to make sure each post I get back has each tag from requirements.
Concretely, if I have 2 posts, 1 with tags #fun #stuff and the other with #stuff #doing, and I pass the array ['fun, 'stuff'] then I should only get the first post back.
$in does exactly what I'm trying to do, but isn't inclusive (it matches any value; I need to match all values).
I suppose I could dynamically construct queries using $and, but that seems clunky.
Is there a better way of doing this?
