Hi, I run into an issue... I have this class: ```d...

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[Mark Buikema]

Hi, I run into an issue... I have this class:

data class Hotel(
  val id: String,
  val openStatus: OpenStatus //OpenStatus is an enum with values OPEN, PREORDER, CLOSED
  val favorite: Boolean
  val sortingValue: Int
)

Now I have a list of hotels. I want to sort the list in a way that it results in this:

Open/preorder section (openStatus == OPEN || openStatus == PREORDER)
  Favorites
    Open
      Sorted by sortingvalue
    Preorder
      Sorted by sortingvalue
  Non-favorites
    Open
      Sorted by sortingvalue
    Preorder
      Sorted by sortingvalue
Closed section (openStatus == CLOSED)
  Favorites
    Sorted by sortingvalue
  Non-favorites
    Sorted by sortingvalue

What would be the best way to achieve this sorting behavior?

[Zach Klippenstein (he/him) [MOD]]

Write a custom comparator that implements that logic, pass to sortedWith.

[Michael de Kaste]

like @Zach Klippenstein (he/him) [MOD] said.

use: compareBy<Hotel>{ ... }.thenBy{ ... }.thenBy{ ... } ...
note that false has precedence over true so you should use descending order if you want true to be before false.