#759: add state_machine into the ProductBuildList

app/controllers/platforms/product_build_lists_controller.rb

@@ -26,9 +26,12 @@ class Platforms::ProductBuildListsController < Platforms::BaseController
   end
 
   def cancel
-    @product_build_list.cancel_job
-    flash[:notice] = t('layout.build_lists.will_be_canceled')
-    redirect_to platform_product_product_build_list_path(@platform, @product, @product_build_list)
+    if @product_build_list.cancel
+      notice = t('layout.build_lists.will_be_canceled')
+    else
+      notice = t('layout.build_lists.cancel_fail')
+    end
+    redirect_to :back, :notice => notice
   end
 
   def log

app/models/build_list.rb

@@ -142,7 +142,7 @@ class BuildList < ActiveRecord::Base
 
     after_transition :on => :published, :do => [:set_version_and_tag, :actualize_packages]
     after_transition :on => :cancel, :do => [:cancel_job],
-      :if => lambda { |build_list| build_list.build_canceling? }
+      :if => lambda { |build_list| build_list.new_core? }
 
     after_transition :on => [:published, :fail_publish, :build_error], :do => :notify_users
     after_transition :on => :build_success, :do => :notify_users,
@@ -178,12 +178,12 @@ class BuildList < ActiveRecord::Base
         !build_list.new_core? && build_list.can_cancel? && BuildServer.delete_build_list(build_list.bs_id) == BuildServer::SUCCESS
       }
       transition [:build_pending, :build_started] => :build_canceling, :if => lambda { |build_list|
-        build_list.new_core? && build_list.can_cancel?
+        build_list.new_core?
       }
     end
 
     event :build_canceled do
-      transition [:build_canceling] => :build_canceled, :if => lambda { |build_list|
+      transition :build_canceling => :build_canceled, :if => lambda { |build_list|
         build_list.new_core?
       }
     end

app/models/product_build_list.rb

@@ -4,19 +4,21 @@ class ProductBuildList < ActiveRecord::Base
   include AbfWorker::ModelHelper
   delegate :url_helpers, to: 'Rails.application.routes'
 
-  BUILD_COMPLETED = 0
-  BUILD_FAILED    = 1
-  BUILD_PENDING   = 2
-  BUILD_STARTED   = 3
-  BUILD_CANCELED  = 4
-  BUILD_CANCELING = 5
+  BUILD_COMPLETED       = 0
+  BUILD_FAILED          = 1
+  BUILD_PENDING         = 2
+  BUILD_STARTED         = 3
+  BUILD_CANCELED        = 4
+  BUILD_CANCELING       = 5
+  WAITING_FOR_RESPONSE  = 4000
 
   STATUSES = [  BUILD_STARTED,
                 BUILD_COMPLETED,
                 BUILD_FAILED,
                 BUILD_PENDING,
                 BUILD_CANCELED,
-                BUILD_CANCELING
+                BUILD_CANCELING,
+                WAITING_FOR_RESPONSE
               ]
 
   HUMAN_STATUSES = { BUILD_STARTED => :build_started,
@@ -24,7 +26,8 @@ class ProductBuildList < ActiveRecord::Base
                      BUILD_FAILED => :build_failed,
                      BUILD_PENDING => :build_pending,
                      BUILD_CANCELED => :build_canceled,
-                     BUILD_CANCELING => :build_canceling
+                     BUILD_CANCELING => :build_canceling,
+                     WAITING_FOR_RESPONSE => :waiting_for_response
                     }
 
   belongs_to :product
@@ -61,10 +64,44 @@ class ProductBuildList < ActiveRecord::Base
   scope :scoped_to_product_name, lambda {|product_name| joins(:product).where('products.name LIKE ?', "%#{product_name}%")}
   scope :recent, order("#{table_name}.updated_at DESC")
 
-  after_create :add_job_to_abf_worker_queue
+  after_create :place_build
   before_destroy :can_destroy?
   after_destroy :xml_delete_iso_container
 
+  state_machine :status, :initial => :waiting_for_response do
+
+    event :place_build do
+      transition :waiting_for_response => :build_pending, :if => lambda { |pbl|
+        pbl.add_job_to_abf_worker_queue
+      }
+    end
+
+    event :start_build do
+      transition :build_pending => :build_started
+    end
+
+    event :cancel do
+      transition [:build_pending, :build_started] => :build_canceling
+    end
+    after_transition :on => :cancel, :do => [:cancel_job]
+
+    event :build_canceled do
+      transition :build_canceling => :build_canceled
+    end
+
+    event :build_success do
+      transition :build_started => :build_completed
+    end
+
+    event :build_error do
+      transition [:build_started, :build_canceled, :build_canceling] => :build_failed
+    end
+
+    HUMAN_STATUSES.each do |code,name|
+      state name, :value => code
+    end
+  end
+
   def build_started?
     status == BUILD_STARTED
   end

lib/abf_worker/iso_worker_observer.rb

@@ -1,13 +1,29 @@
 module AbfWorker
   class IsoWorkerObserver
+    BUILD_COMPLETED = 0
+    BUILD_FAILED    = 1
+    BUILD_PENDING   = 2
+    BUILD_STARTED   = 3
+    BUILD_CANCELED  = 4
     @queue = :iso_worker_observer
 
     def self.perform(options)
       status = options['status'].to_i
       pbl = ProductBuildList.find options['id']
-      pbl.status = status
-      pbl.results = options['results'] if status != ProductBuildList::BUILD_STARTED
-      pbl.save!
+      case status
+      when BUILD_COMPLETED
+        pbl.build_success
+      when BUILD_FAILED
+        pbl.build_error
+      when BUILD_STARTED
+        pbl.start_build
+      when BUILD_CANCELED
+        pbl.build_canceled
+      end
+      if status != BUILD_STARTED
+        pbl.results = options['results']
+        pbl.save!
+      end
     end
 
   end

lib/abf_worker/model_helper.rb

@@ -1,9 +1,8 @@
 module AbfWorker
   module ModelHelper
     # In model which contains this helper should be:
-    # - BUILD_CANCELING
-    # - BUILD_CANCELED
     # - #abf_worker_args
+    # - #build_canceled
 
     def abf_worker_log
       q = 'abfworker::'
@@ -22,15 +21,13 @@ module AbfWorker
     end
 
     def cancel_job
-      update_attributes({:status => self.class::BUILD_CANCELING})
-
       deleted = Resque::Job.destroy(
         worker_queue,
         worker_queue_class,
         abf_worker_args
       )
       if deleted == 1
-        update_attributes({:status => self.class::BUILD_CANCELED})
+        build_canceled
       else
         send_stop_signal
       end