pass from_obj and to_obj to the relation event

package.json

@@ -1,6 +1,6 @@
 {
   "name": "modella-level-relations",
-  "version": "1.5.4",
+  "version": "1.6.0",
   "description": "levelup based modella relations",
   "keywords": [
     "modella",

src/relation.js

@@ -249,7 +249,9 @@ relation.prototype.put = function (from, to, fn) {
     if(!err) self.model.emit('relation', xtend(rel, {
       action: 'put',
       attr: self.attr,
-      from_model: self.model.modelName
+      from_model: self.model.modelName,
+      from_obj: from,
+      to_obj: to
     }))
   }
 
@@ -318,7 +320,9 @@ relation.prototype.del = function (from, to, fn) {
       action: 'del',
       attr: self.attr,
       from: from.primary(),
-      to: to.primary()
+      to: to.primary(),
+      from_obj: from,
+      to_obj: to
     })
   }
 

test/index.js

@@ -856,6 +856,8 @@ describe('put', function () {
       assert(relation.action == 'put')
       assert(relation.to_model == 'User')
       assert(relation.from_model == 'User')
+      assert(relation.to_obj == b)
+      assert(relation.from_obj == a)
       assert(relation.count === 1)
     })
 
@@ -1059,6 +1061,8 @@ describe('del', function () {
       assert(relation.to === b.primary())
       assert(relation.attr === 'followers')
       assert(relation.action === 'put')
+      assert(relation.from_obj === a)
+      assert(relation.to_obj === b)
       done()
     })