Field Choices - give extra blank option added using ng-repeat in select tag

[thachp]

The following filter codes would generate extra blank option in the dropdown field.
It is a common problem with angular and the option tag.

See:
http://stackoverflow.com/questions/15488181/angularjs-extra-blank-option-added-using-ng-repeat-in-select-tag?lq=1

.filters([
    nga.field('success_status_search', 'choice').label('Status')
        .choices([{value:'1', label:'Sent'}, {value:'0', label:'Failed'}])
    ])

The temporarily solution is to use CSS to hide the empty field.

select option:empty { display:none }