added alias for updates

lib/dialects/mssql/query-generator.js

@@ -52,7 +52,7 @@ module.exports = (function() {
     createSchema: function(schema){
       return SqlGenerator.getCreateSchemaSql(schema);
     },
-    showSchemasQuery: function(){   
+    showSchemasQuery: function(){
       return 'SELECT name FROM sys.Tables;';
     },
     /*
@@ -208,10 +208,11 @@ module.exports = (function() {
       for(var key in attributes){
         //console.log(key);
         //console.log('some more action', attributes.deletedAtThisTime);
-        if(attributes[key].primaryKey && attrValueHash[key]){
-          delete attrValueHash[key];
+        var aliasKey = attributes[key].field || key;
+        if(attributes[key].primaryKey && attrValueHash[aliasKey]){
+          delete attrValueHash[aliasKey];
         }
-        if(attrValueHash[key] && attrValueHash[key].fn){
+        if(attrValueHash[aliasKey] && attrValueHash[aliasKey].fn){
 
         }
       }
@@ -428,7 +429,7 @@ module.exports = (function() {
         }
 
         // add 1st string as quoted, 2nd as unquoted raw
-        var sql = (i > 0 ? SqlGenerator.quoteIdentifier(tableNames.join('.')) + '.' : '') 
+        var sql = (i > 0 ? SqlGenerator.quoteIdentifier(tableNames.join('.')) + '.' : '')
           + this.quote(obj[i], parent, force);
         if (i < len - 1) {
           sql += ' ' + obj[i + 1];