I have a db table for categories where a category can be a sub-category of a category in the same table. For example:
| category_id | category_name | parent_id |
|---|---|---|
| 1 | Vocabulary | nil |
| 2 | Animals | 1 |
| 3 | Food | 1 |
| 4 | Grammar | nil |
| 5 | Mammals | 2 |
I want to show this list on category creation form as a dropdown to select parent category.
Something like,
Vocabulary
- Animals
- Mammals
- Food
Grammar
How can I render the list in this way? Or is there a better way to handle this requirement?
I am not using LiveView for this project.