clearOptions: Don't remove already selected items

[andrey-lizunov]

Closed #1079

[coveralls]

Changes Unknown when pulling 72a065d on andrey-lizunov:master into * on selectize:master*.

[joallard]

Can you explain your PR? I wasn't able to understand the issue ref'd.

[andrey-lizunov]

@joallard I found that selectize accumulates options from previous searches. I upload new list of options remotely from my server and the number of selected items not limited. In this case after several searches in dropdown I have a lot of options connected with old queries which I don't need.
I tryed to call clearOptions before upload new list of options, but clearOptions calls clear function inside and this removes all items which was chosen before.
The problem that I want to be able to clear just list of options without removing already selected items. I talking about multiple selects.

This PR change this behavior, now the list of selected items stay unchanged, but list of options for select is cleared.

[brookjordan]

Is this not the same as:

$.each(self.options, function(key, value) {
  if(self.items.indexOf(key) == -1) {
    delete self.options[key];
  }
});
self.sifter.items = self.options;

[r2my]

@brookjordan I confirm, your code works fine.

[mtebele]

Any workaround for this?

[colalex]

Is this still open?
I have the problem only on Android (other system work fine even with chrome) when I want to delete a selected item.

[andrey-lizunov]

@colalex This issue is not about deleting a selected item.
It's about clearing (generate new list) options when you already have selected options and your list of options are dynamic (ajax from server).

[ravins]

still open ?

[legshooter]

@joallard Any chance you can merge this? A couple of these really small fixes for impactful UX issues are hanging around, and we could really use your help.

[joallard]

Had to rebase that one

[kstratis]

2021 and this is still an issue... unbelievable...

[risadams]

2021 and this is still an issue... unbelievable...

Would you believe that a PR closed two years ago might not be quite relevant to today's environment? Feel free to open a new issue with a working example, or submit your own PR with the changes you wish to see.