fix problem with 'this' in validateIncludedElement

lib/dao-factory.js

@@ -1348,7 +1348,7 @@ module.exports = (function() {
     }
 
     options.include = options.include.map(function(include) {
-      include = validateIncludedElement.call(this, include, options.daoFactory, tableNames)
+      include = validateIncludedElement.call(this, include, tableNames)
 
       options.includeMap[include.as] = include
       options.includeNames.push(include.as)
@@ -1364,15 +1364,11 @@ module.exports = (function() {
     }.bind(this))
   }
 
-  var validateIncludedElement = function(include, parent, tableNames) {
+  var validateIncludedElement = function(include, tableNames) {
     if (include instanceof DAOFactory) {
       include = { daoFactory: include }
     }
 
-    if (typeof parent === "undefined") {
-      parent = this
-    }
-
     if (typeof include !== 'object') {
       throw new Error('Include unexpected. Element has to be either an instance of DAOFactory or an object.')
     }
@@ -1405,7 +1401,7 @@ module.exports = (function() {
     if (include._pseudo) return include
 
     // check if the current daoFactory is actually associated with the passed daoFactory - or it's a pseudo include
-    var association = parent.getAssociation(include.daoFactory, include.as)
+	var association = this.getAssociation(include.daoFactory, include.as)
     if (association) {
       include.association = association
       include.as = association.as
@@ -1434,7 +1430,7 @@ module.exports = (function() {
 
       // Validate child includes
       if (include.hasOwnProperty('include')) {
-        validateIncludedElements(include, tableNames)
+        validateIncludedElements.call(include.daoFactory, include, tableNames)
       }
 
       return include