Using WhereHas in Laravel Polymorphic Relations
Techniques like these are important to document because we bump into them frequently, but not frequently enough to have it memorized!
It seems like once every project I find myself googling "Laravel Polymorphic WhereHas", combing through one result after another, frustratedly repeating "How do I do this???".
While there isn't a first-party supported solution, I wanted to document what has been working for me, so I don't have to continue searching StackOverflow!