Only create an OAuth Application for secondary nodes

app/models/geo_node.rb

@@ -73,8 +73,13 @@ class GeoNode < ActiveRecord::Base
 
   def update_dependents_attributes
     self.geo_node_key.title = "Geo node: #{self.url}" if self.geo_node_key
-    self.oauth_application.name = "Geo node: #{self.url}" if self.geo_node_key
-    self.oauth_application.redirect_uri = oauth_callback_url
+
+    if self.primary?
+      self.oauth_application = nil
+    else
+      self.oauth_application.name = "Geo node: #{self.url}" if self.geo_node_key
+      self.oauth_application.redirect_uri = oauth_callback_url
+    end
   end
 
   def validate(record)

spec/models/geo_node_spec.rb

@@ -68,19 +68,26 @@ describe GeoNode, type: :model do
     end
 
     context 'on create' do
-
       before(:each) do
         subject.geo_node_key_attributes = geo_node_key_attributes
-        subject.save!
       end
 
       it 'saves a corresponding key' do
+        subject.save!
         expect(subject.geo_node_key).to be_persisted
       end
 
-      it 'saves a corresponding oauth application' do
+      it 'saves a corresponding oauth application if it is a secondary node' do
+        subject.save!
         expect(subject.oauth_application).to be_persisted
       end
+
+      it 'has no oauth_application if it is a primary node' do
+        subject.primary=true
+        subject.save!
+
+        expect(subject.oauth_application).not_to be_present
+      end
     end
   end