cats | Implementations of cat from various sources

You can simply suppress any dialog boxes with this at the start of a script:

Since 2015 there should be no more need to go through the pain of assigning prototype properties like that, and establish inheritance between two classes with such assignments.

I would suggest rewriting your code completely, and using the class syntax, where you don't need to explicitly do this inheritance fiddling with the prototype property:

The problem is you are passing respons.body["data"]["data"] to your Datum.fromJson() constructor but there is no such key in the json. on the other hand you are passing response.body["data"] to Car.fromJson() constructor which is a list of data that does not have "status" key in it.

Try changing your code as follows.

Simpler

Yes. Create a Razor Helper that calls itself recursively. That should allow you to avoid all the duplicative code in your example, and it'll support a basically infinite maximum depth without requiring any more code changes.

Faster

It depends on what's taking all the time.

As you get more levels, presumably you're just generating a lot more HTML. That'll take more time server-side, and it'll also bog down the browser. To avoid that kind of problem, you may need to look at only loading in the parts that the user is actually interested in. For example, you can create a collapsed structure that only loads in data from deeper nodes as users drill down into it.

I'd also pay close attention to what may be happening in the code you haven't provided.

• Is setCatInfo an expensive operation?
• What is backing the Cats collection? If it's using deferred execution, like an Entity Framework DbSet, you may be doing a separate round-trip each time you iterate over the results of a Cats.Where(...) call.

Either way, executing Cats.Where() all over the place is giving your page generation an O(n²) algorithmic complexity. I'd suggest collecting all the categories into a lookup, grouped by their Parent:

Thanks to prasad_, here is the solution that solves my case:

There is in fact 8 possiblities 2**3 that you can get with itertools.product

Let's see the definition for Http[F, G], which is at the core of http4s:

The problem is that wp_get_post_categories returns an array of the term ids. In your foreach you are using $cat->XXX for the link and the name. However, $cat isn't an object. You need one more step.

You need to use get_category to get the actual category Object.