[RFR] Add filter to reference depending on another reference

[vasiakorobkin]

I'd like to help you with resolving this issue: #810
It comes together with this PR in admin-config.

Here's sketch of my suggested solution, but I'm not sure if I'm on a right track.
I need your feedback in order to continue my work.
So please, review and tell me if I'm wrong.

[manind007]

Hi, The below example also not working based on the expectations. Subcategories not filtered based on the selected category

var subCategories = [
{ category: 'tech', label: 'Computers', value: 'computers' },
{ category: 'tech', label: 'Gadgets', value: 'gadgets' },
{ category: 'lifestyle', label: 'Travel', value: 'travel' },
{ category: 'lifestyle', label: 'Fitness', value: 'fitness' }
];

          nga.field('category', 'choice')  
                .choices([ 
                    { label: 'Tech', value: 'tech' },
                    { label: 'Lifestyle', value: 'lifestyle' }
                ]),

            nga.field('subcategory', 'choice')
                .choices(function(entry) {  
                    return subCategories.filter(function (c) {
                        return c.category === entry.values.category
                    });
                }),

Pls help me

[vasiakorobkin]

@manind007 Of course they're dosen't work, because this PR hasn't been completed and hasn't been merged. It is just feature proposal and it depends on ng-admin mantainers when it will be implemented.

[shawn11ZX]

I really need this feature. Hope it can be accepted soon.

[mradosta]

+1