snippet.js

    function processVertex(parent, vertices, children) {

      var vertex = null, vertexChildren = null;
      if (children && angular.isArray(children)) {
        _.each(children, function(id) {

          // find child in old data model by vertex id
          vertex = _.find(vertices, { vertexId: id });
          if (vertex) {

            if (!parent.nodes) {
              parent.nodes = [];
            }

            // stash any children of the current old vertices data model child
            vertexChildren = vertex.directChildVertexIds;

            // new child in new vertices data model format
            switch (vertex.type) {
              case ProfileConstants.VertexType.QUALIFIER_VERTEX:
                QualifierRuleService.get(vertex.referenceId)
                  .then(function(qualifier) {
                    processNode(parent, vertices, vertex, qualifier, vertexChildren);
                  })
                  .catch(function() {
                    return false;
                  });
                break;

source_array.json

"vertices" : [
        {
            "vertexId" : "1", 
            "type" : "GROUPING_VERTEX", 
            "operator" : "ALL", 
            "queryHash" : NumberLong(-8431829764980288999), 
            "rating" : 1.0, 
            "directChildVertexIds" : [
                "1.1", 
                "1.2", 
                "1.3"
            ]
        }, 
        {
            "vertexId" : "1.3", 
            "parentVertexId" : "1", 
            "referenceId" : ObjectId("52d5886bd12ed6a02ee8b62c"), 
            "type" : "QUALIFIER_VERTEX", 
            "operator" : "IN", 
            "queryHash" : NumberLong(1199367963879916109), 
            "value" : "3", 
            "rating" : 1.0
        }, 
        {
            "vertexId" : "1.2", 
            "parentVertexId" : "1", 
            "referenceId" : ObjectId("53b1aaf4e14ab322c09cf8b5"), 
            "type" : "QUALIFIER_VERTEX", 
            "operator" : "IN", 
            "queryHash" : NumberLong(-5244767043845059617), 
            "value" : "501,515,517,555,623,803", 
            "rating" : 1.0
        }, 
        {
            "vertexId" : "1.1", 
            "parentVertexId" : "1", 
            "referenceId" : ObjectId("52d5886bd12ed6a02ee8b639"), 
            "type" : "QUALIFIER_VERTEX", 
            "operator" : "GREATER_THAN_OR_EQUALS", 
            "queryHash" : NumberLong(4530585763684417183), 
            "value" : "7", 
            "rating" : 1.0
        }
    ],