app/addons/documents/mango/mango.helper.js

// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.

define([
  'api'
], function (FauxtonAPI) {

  function getIndexName (doc) {
    var nameArray = [],
        indexes;

    nameArray = doc.get('def').fields.reduce(function (acc, el, i) {
      if (i === 0) {
        acc.push(doc.get('type') + ': ' + Object.keys(el)[0]);
      } else {
        acc.push(Object.keys(el)[0]);
      }

      return acc;
    }, []);

    if (!nameArray.length) {
      indexes = FauxtonAPI.getExtensions('mango:additionalIndexes')[0];
      nameArray = indexes.createHeader(doc);
    }

    return nameArray.join(', ');
  }

  return {
    getIndexName: getIndexName
  };

});