gistfile1.js

  //descriptions: SC.RecordAttribute.create({
  //  toType: function(record, key, value) {
  //    var cacheKey = '__descriptions__'+ SC.guidFor(record) ;
  //    var query = record[cacheKey] ;
  //    if (!query) {
  //      query = record[cacheKey] = record.get('store').findAll(SC.Query.create({
  //        recordType: 'BB.Description',
  //        conditions: "concept = %@",
  //        parameters: [record]
  //        // orderBy: "priority DESC, lowerCaseName"
  //      }));
  //    }
  //    return query ;
  //  }
  //}),
  
  descriptions: SC.RecordAttribute.create({
    toType: function(record, key, value) {
      var queryCacheKey = '__descriptionsQuery__'+ SC.guidFor(record) ;
      var query = record[queryCacheKey] ;
      var resultsCacheKey = '__descriptions__'+ SC.guidFor(record) ;
      var results = record[resultsCacheKey] ;
      if (!query) {
        query = record[queryCacheKey] = SC.Query.create({
          recordType: 'BB.Description',
          conditions: "concept = %@",
          parameters: [record]
          // orderBy: "priority DESC, lowerCaseName"
        });
      }
      if (!results) {
        results = record[resultsCacheKey] = record.get('store').findAll(query);
      }
      return results ;
    }
  }),