Move jsonapiType() to model method

Author: Lee Richmond

addon/mixins/model.js

@@ -45,6 +45,12 @@ export default Ember.Mixin.create({
     this.set('_markedForDestruction', true);
   },
 
+  jsonapiType() {
+    return this.store
+      .adapterFor(this.constructor.modelName)
+      .pathForType(this.constructor.modelName);
+  },
+
   // Blank out all relations after saving
   // We will use the server response includes to 'reset'
   // these relations

addon/mixins/nested-relations.js

@@ -50,16 +50,10 @@ const attributesFor = function(record) {
   return attrs;
 };
 
-const jsonapiType = function(record) {
-  return record.store
-    .adapterFor(record.constructor.modelName)
-    .pathForType(record.constructor.modelName);
-};
-
 const jsonapiPayload = function(record) {
   let attributes = attributesFor(record);
 
-  let payload = { type: jsonapiType(record) };
+  let payload = { type: record.jsonapiType() };
 
   if (isPresentObject(attributes)) {
     payload.attributes = attributes;