modify the hook of update, get _id from the first element of .

Author: wanghao1891

lib/mongoosastic.js

@@ -541,26 +541,39 @@ module.exports = function Mongoosastic(schema, options) {
 
         var queryHookFunc = function (result) {
             if ((typeof this._conditions == 'object') && (Object.getOwnPropertyNames(this._conditions).length > 0)) {
+                //console.log('this:', this);
                 var theModel = this.model;
                 var origCondition = this._conditions;
                 var finalCondition = null;
+                //console.log('origCondition:', origCondition);
+                //console.log('identifyingPaths:', identifyingPaths);
                 finalCondition = _.foldl(identifyingPaths, function(final, path){
                     var theVal = _.get(origCondition, path);
                     if (theVal) {
                         final[path] = theVal;
+                    } else {
+                        if(origCondition.$or[0]) {
+                            theVal = origCondition.$or[0][path];
+                            if(theVal) {
+                                final[path] = theVal;
+                            }
+                        }
                     }
                     return final
                 }, {});
                 if (_.isEmpty(finalCondition)) {
                     finalCondition = origCondition;
                 }
+                //console.log('finalCondition:', finalCondition);
                 this.model.find(finalCondition).limit(50).exec(function (err, results) {
+                    //console.log("results:", results, "result:", result);
                     if (err) {
                         return
                     }
                     if (results && results.length > 0) {
                         results.forEach(
                             function(record) {
+                                //console.log('record is', record);
                                 record.index();
                             }
                         )