Implemented persistent: true option for embedsOne

lib/relation-definition.js

@@ -1775,18 +1775,28 @@ EmbedsOne.prototype.create = function (targetModelData, cb) {
   
   var inst = this.build(targetModelData);
   
-  var err = inst.isValid() ? null : new ValidationError(inst);
+  var updateEmbedded = function() {
-  
-  if (err) {
-    return process.nextTick(function() {
-      cb(err); 
-    });
-  }
-  
     modelInstance.updateAttribute(propertyName, 
       inst, function(err) {
       cb(err, err ? null : inst);
     });
+  };
+  
+  if (this.definition.options.persistent) {
+    inst.save(function(err) { // will validate
+      if (err) return cb(err, inst);
+      updateEmbedded();
+    });
+  } else {
+    var err = inst.isValid() ? null : new ValidationError(inst);
+    if (err) {
+      process.nextTick(function() {
+        cb(err); 
+      });
+    } else {
+      updateEmbedded();
+    }
+  }
 };
 
 EmbedsOne.prototype.build = function (targetModelData) {
@@ -2199,26 +2209,27 @@ EmbedsMany.prototype.create = function (targetModelData, cb) {
   
   var inst = this.build(targetModelData);
   
-  var updateEmbeddedList = function() {
+  var updateEmbedded = function() {
     modelInstance.updateAttribute(propertyName,
       embeddedList, function(err, modelInst) {
       cb(err, err ? null : inst);
     });
-  }
+  };
   
   if (this.definition.options.persistent) {
     inst.save(function(err) { // will validate
       if (err) return cb(err, inst);
-      updateEmbeddedList();
+      updateEmbedded();
     });
   } else {
     var err = inst.isValid() ? null : new ValidationError(inst);
     if (err) {
-      return process.nextTick(function() {
+      process.nextTick(function() {
         cb(err); 
       });
+    } else {
+      updateEmbedded();
     }
-    updateEmbeddedList();
   }
 };
 

test/relations.test.js

@@ -1833,6 +1833,50 @@ describe('relations', function () {
     
   });
   
+  describe('embedsOne - persisted model', function () {
+    
+    // This test spefically uses the Memory connector
+    // in order to test the use of the auto-generated
+    // id, in the sequence of the related model.
+    
+    before(function () {
+      db = getMemoryDataSource();
+      Person = db.define('Person', {name: String});
+      Passport = db.define('Passport',
+        {name:{type:'string', required: true}}
+      );
+    });
+
+    it('can be declared using embedsOne method', function (done) {
+      Person.embedsOne(Passport, {
+        options: {persistent: true}
+      });
+      db.automigrate(done);
+    });
+    
+    it('should create an item - to offset id', function(done) {
+      Passport.create({name:'Wilma'}, function(err, p) {
+        should.not.exist(err);
+        p.id.should.equal(1);
+        p.name.should.equal('Wilma');
+        done();
+      });
+    });
+    
+    it('should create an embedded item on scope', function(done) {
+      Person.create({name: 'Fred'}, function(err, p) {
+        should.not.exist(err);
+        p.passportItem.create({name: 'Fredric'}, function(err, passport) {
+          should.not.exist(err);
+          p.passport.id.should.eql(2);
+          p.passport.name.should.equal('Fredric');
+          done();
+        });
+      });
+    });
+    
+  });
+  
   describe('embedsMany', function () {
     
     var address1, address2;