Disable entry in lookup editor

[TechAspirant]

I have same lookup editor hooked to multiple fields and I want to disable entry in lookupeditor If already selected before.
Eg.
LookupEditor field - Property Name (P1, P2, P3, P4)

Fields to which Property Lookupeditor is attached
Field 1
Field 2
Field 3

If Property P1 is selected for Field 1
Than Only P2, P3, P4 will be available for selection whereas P1 will be readily or disabled in lookup editor

[minhhungit]

using ServiceLookup is a good solution

[minhhungit]

another way I guess you can inherit a new lookup editor from Serenity.LookupEditorBase and custom select2 option
Just search by keyword LookupEditorBase or Lookup service on github, I think you can find examples by searching

[minhhungit]

Try this, fast coding , I have not tested it

[minhhungit]

I checked, get_items does not work, use updateItems, it should work

[TechAspirant]

I tried it disables alternate entry. How to check that the entry is selected or mapped to field already and If selected make it disable ?

[minhhungit]

I checked it more careful, I see that we have a method called getItemDisabled in Serenity.LookupEditorBase, just overwrite it

@Serenity.Decorators.registerEditor()
export class TestLookup extends Serenity.LookupEditorBase<Serenity.LookupEditorOptions, StateRow>{

    constructor(container: JQuery, opt: Serenity.LookupEditorOptions) {
        super(container, opt);
    }

    protected getItemDisabled(item: StateRow, lookup: Q.Lookup<StateRow>) {
        if (item.Id % 2 == 0) {
            return true;
        }

        return false;
    }   
}

Use item and lookup param in the method to determind which record you want to hide, to get custom lookup items then search in github with keyword lookup please, I also anwsered many times