Add aliases for event methods

Addresses #469

lib/aasm/base.rb

@@ -130,6 +130,14 @@ module AASM
         aasm(aasm_name).current_event = event
         aasm_fire_event(aasm_name, event, {:persist => false}, *args, &block)
       end
+
+      # Create aliases for the event methods. Keep the old names to maintain backwards compatibility.
+      if namespace?
+        klass.send(:alias_method, "may_#{name}_#{namespace}?", "may_#{name}?")
+        klass.send(:alias_method, "#{name}_#{namespace}!", "#{name}!")
+        klass.send(:alias_method, "#{name}_#{namespace}", name)
+      end
+
     end
 
     def after_all_transitions(*callbacks, &block)

spec/models/namespaced_multiple_example.rb

@@ -25,4 +25,18 @@ class NamespacedMultipleExample
       transitions :from => :approved, :to => :unapproved
     end
   end
+
+  # Test namespace event methods with suffix (ie may_sell_car?, sell_car!)
+  aasm(:car, namespace: :car) do
+    state :unsold, :initial => true
+    state :sold
+
+    event :sell do
+      transitions :from => :unsold, :to => :sold
+    end
+
+    event :return do
+      transitions :from => :sold, :to => :unsold
+    end
+  end
 end

spec/unit/namespaced_multiple_example_spec.rb

@@ -11,6 +11,10 @@ describe 'state machine' do
     expect(namespaced.aasm(:review_status).current_state).to eq(:unapproved)
     expect(namespaced).to respond_to(:review_unapproved?)
     expect(namespaced).to be_review_unapproved
+
+    expect(namespaced.aasm(:car).current_state).to eq(:unsold)
+    expect(namespaced).to respond_to(:car_unsold?)
+    expect(namespaced).to be_car_unsold
   end
 
   it 'allows transitions to other states' do
@@ -25,6 +29,12 @@ describe 'state machine' do
     namespaced.approve_review!
     expect(namespaced).to respond_to(:review_approved?)
     expect(namespaced).to be_review_approved
+
+    expect(namespaced).to respond_to(:sell_car)
+    expect(namespaced).to respond_to(:sell_car!)
+    namespaced.sell_car!
+    expect(namespaced).to respond_to(:car_sold?)
+    expect(namespaced).to be_car_sold
   end
 
   it 'denies transitions to other states' do
@@ -41,6 +51,13 @@ describe 'state machine' do
     expect {namespaced.approve_review}.to raise_error(AASM::InvalidTransition)
     expect {namespaced.approve_review!}.to raise_error(AASM::InvalidTransition)
     namespaced.unapprove_review
+
+    expect {namespaced.return_car}.to raise_error(AASM::InvalidTransition)
+    expect {namespaced.return_car!}.to raise_error(AASM::InvalidTransition)
+    namespaced.sell_car
+    expect {namespaced.sell_car}.to raise_error(AASM::InvalidTransition)
+    expect {namespaced.sell_car!}.to raise_error(AASM::InvalidTransition)
+    namespaced.return_car
   end
 
   it 'defines constants for each state name' do
@@ -49,5 +66,10 @@ describe 'state machine' do
 
     expect(NamespacedMultipleExample::STATE_REVIEW_UNAPPROVED).to eq(:unapproved)
     expect(NamespacedMultipleExample::STATE_REVIEW_APPROVED).to eq(:approved)
+
+    expect(NamespacedMultipleExample::STATE_CAR_UNSOLD).to eq(:unsold)
+    expect(NamespacedMultipleExample::STATE_CAR_SOLD).to eq(:sold)
   end
+
+
 end