Add ability to use attributes in belongsTo and hasOne accessors

This will allow you to put attributes into the accessor requests.
It also complements the newly added field selectedValues so you can get
the exact fields you requested when using associations.

lib/associations/belongs-to.js

@@ -32,9 +32,16 @@ module.exports = (function() {
     var self     = this
     var self     = this
       , accessor = Utils._.camelize('get_' + (this.options.as || Utils.singularize(this.target.tableName)))
       , accessor = Utils._.camelize('get_' + (this.options.as || Utils.singularize(this.target.tableName)))
 
 
-    obj[accessor] = function() {
-      var id = obj[self.identifier]
-      return self.target.find(id)
+    obj[accessor] = function(params) {
+      var id    = obj[self.identifier]
+      if(!Utils._.isUndefined(params)) {
+        if(!Utils._.isUndefined(params.attributes)) 
+          params = Utils._.extend({where: {id:id}}, params)
+      }
+      else 
+        params = id
+      
+      return self.target.find(params)
     }
     }
 
 
     return this
     return this

lib/associations/has-one.js

@@ -37,12 +37,21 @@ module.exports = (function() {
   HasOne.prototype.injectGetter = function(obj) {
   HasOne.prototype.injectGetter = function(obj) {
     var self = this
     var self = this
 
 
-    obj[this.accessors.get] = function() {
+    obj[this.accessors.get] = function(params) {
       var id    = obj.id
       var id    = obj.id
         , where = {}
         , where = {}
 
 
       where[self.identifier] = id
       where[self.identifier] = id
-      return self.target.find({where: where})
+
+      if(!Utils._.isUndefined(params)) {
+        if(!Utils._.isUndefined(params.attributes)) {
+          params = Utils._.extend({where: where}, params)
+        }
+      }
+      else 
+        params = {where: where}
+
+      return self.target.find(params)
     }
     }
 
 
     return this
     return this

spec-jasmine/associations/has-many.spec.js

@@ -87,7 +87,11 @@ describe('HasMany', function() {
         user.setTasks([task1, task2]).success(function() {
         user.setTasks([task1, task2]).success(function() {
           user.getTasks().success(function(tasks) {
           user.getTasks().success(function(tasks) {
             expect(tasks.length).toEqual(2)
             expect(tasks.length).toEqual(2)
-            done()
+            user.getTasks({attributes: ['title']}).success(function(tasks) {
+              expect(tasks[0].selectedValues.title).toEqual('task1')
+              expect(tasks[0].selectedValues.id).toEqual(null)
+              done()
+            })
           })
           })
         })
         })
       })
       })

spec-jasmine/associations/has-one.spec.js

@@ -88,7 +88,11 @@ describe('HasOne', function() {
       user.setTask(task).on('success', function() {
       user.setTask(task).on('success', function() {
         user.getTask().on('success', function(task2) {
         user.getTask().on('success', function(task2) {
           expect(task.title).toEqual(task2.title)
           expect(task.title).toEqual(task2.title)
-          done()
+          user.getTask({attributes: ['title']}).on('success', function(task2) {
+            expect(task2.selectedValues.title).toEqual('snafu')
+            expect(task2.selectedValues.id).toEqual(null)
+            done()
+          })
         })
         })
       })
       })
     })
     })