I've created custom post types ("Listing Categories" and "Listing Details") with a parent-child relationship in "Listing Categories" for subcategories and a relationship between both post types. However, I'm facing issues with the template:
The view doesn't show all child posts.
Clicking on child posts doesn't display relevant "Listing Details."
Solution:
Guidance was given to manually create relationships through the admin dashboard. Frontend creation of such relationships wasn't directly supported, but nested views and specific methods for parent-child relationships were recommended.