Add Agent.build_clone.

app/models/agent.rb

@@ -230,6 +230,19 @@ class Agent < ActiveRecord::Base
   # Class Methods
 
   class << self
+    def build_clone(original)
+      new(original.slice(:type, :options, :schedule, :source_ids, :keep_events_for, :propagate_immediately)) { |clone|
+        # Give it a unique name
+        2.upto(count) do |i|
+          name = '%s (%d)' % [original.name, i]
+          unless exists?(name: name)
+            clone.name = name
+            break
+          end
+        end
+      }
+    end
+
     def cannot_be_scheduled!
       @cannot_be_scheduled = true
     end

spec/models/agent_spec.rb

@@ -514,6 +514,51 @@ describe Agent do
         end
       end
     end
+
+    describe "Agent.build_clone" do
+      before do
+        Event.delete_all
+        @sender = Agents::SomethingSource.new(
+          name: 'Agent (2)',
+          options: { foo: 'bar2' },
+          schedule: '5pm')
+        @sender.user = users(:bob)
+        @sender.save!
+        @sender.create_event :payload => {}
+        @sender.create_event :payload => {}
+        @sender.events.count.should == 2
+
+        @receiver = Agents::CannotBeScheduled.new(
+          name: 'Agent',
+          options: { foo: 'bar3' },
+          keep_events_for: 3,
+          propagate_immediately: true)
+        @receiver.user = users(:bob)
+        @receiver.sources << @sender
+        @receiver.memory[:test] = 1
+        @receiver.save!
+      end
+
+      it "should create a clone of a given agent for editing" do
+        sender_clone = users(:bob).agents.build_clone(@sender)
+
+        sender_clone.attributes.should == Agent.new.attributes.
+          update(@sender.slice(:user_id, :type,
+            :options, :schedule, :keep_events_for, :propagate_immediately)).
+          update('name' => 'Agent (2) (2)', 'options' => { 'foo' => 'bar2' })
+
+        sender_clone.source_ids.should == []
+
+        receiver_clone = users(:bob).agents.build_clone(@receiver)
+
+        receiver_clone.attributes.should == Agent.new.attributes.
+          update(@receiver.slice(:user_id, :type,
+            :options, :schedule, :keep_events_for, :propagate_immediately)).
+          update('name' => 'Agent (3)', 'options' => { 'foo' => 'bar3' })
+
+        receiver_clone.source_ids.should == [@sender.id]
+      end
+    end
   end
 
   describe ".trigger_web_request" do