<div ng-app ng-controller="Ctrl">
    <div class="control-group" ng-repeat="field in customFields">
        <label class="control-label">{{field}}</label>
        <div class="controls">
            <input type="text" ng-model="person.customfields[field]" />
        </div>
    </div>
    <button ng-click="collectData()">Collect</button>
</div>

function Ctrl($scope) {
    $scope.customFields = ["Age", "Weight", "Ethnicity"];
    $scope.person = {
        customfields: {
            "Age": 0,
                "Weight": 0,
                "Ethnicity": 0
        }
    };

    $scope.collectData = function () {
        console.log($scope.person.customfields);
    }
}

您可以在这里尝试。

更新：

为了进行验证，关键是将其放入<ng-form>中继器内部。请尝试一下。