Add restarter to job

Author: AndriiMysko

lib/travis/api/v3/models/job.rb

@@ -14,6 +14,7 @@ class Models::Job < Model
     belongs_to :stage
     belongs_to :owner, polymorphic: true
     belongs_to :config, foreign_key: :config_id, class_name: Models::JobConfig
+    belongs_to :restarter, foreign_key: :restarted_by, polymorphic: true, class_name: Models::User
     serialize :config
     serialize :debug_options
 

lib/travis/api/v3/renderer/job.rb

@@ -3,13 +3,13 @@
 module Travis::API::V3
   class Renderer::Job < ModelRenderer
     representation(:minimal, :id)
-    representation(:standard, *representations[:minimal], :allow_failure, :number, :state, :started_at, :finished_at, :build, :queue, :repository, :commit, :owner, :stage, :created_at, :updated_at, :private)
+    representation(:standard, *representations[:minimal], :allow_failure, :number, :state, :started_at, :finished_at, :build, :queue, :repository, :commit, :owner, :stage, :created_at, :updated_at, :private, :restarted_at, :restarted_by)
     representation(:active, *representations[:standard])
 
     # TODO: I don't want to config be visible in the regular representation
     # as I want it to be visible only after adding include=job.config
     # we probably need to have a better way of doing this
-    representation(:with_config, *representations[:minimal], :allow_failure, :number, :state, :started_at, :finished_at, :build, :queue, :repository, :commit, :owner, :stage, :created_at, :updated_at, :config)
+    representation(:with_config, *representations[:minimal], :allow_failure, :number, :state, :started_at, :finished_at, :build, :queue, :repository, :commit, :owner, :stage, :created_at, :updated_at, :restarted_at, :restarted_by, :config)
 
     hidden_representations(:with_config)
     hidden_representations(:active)
@@ -26,6 +26,16 @@ def updated_at
       json_format_time_with_ms(model.updated_at)
     end
 
+    def restarted_by
+      return nil unless restarter = model.restarter
+      {
+        '@type' => 'user',
+        '@representation' => 'minimal'.freeze,
+        'id' => restarter.id,
+        'login' => restarter.login
+      }
+     end
+
     def config
       if include_config?
         ConfigObfuscator.new(model.config, model.repository.key).obfuscate