Fix creation of job_artifact_uploader

app/models/ci/build.rb

@@ -15,11 +15,11 @@ module Ci
     has_one :last_deployment, -> { order('deployments.id DESC') }, as: :deployable, class_name: 'Deployment'
     has_many :trace_sections, class_name: 'Ci::BuildTraceSection'
-    has_many :job_artifacts, class_name: 'Ci::JobArtifact', foreign_key: :ci_job_id
+    # TODO: what to do with dependent destroy
+    has_many :job_artifacts, class_name: 'Ci::JobArtifact', foreign_key: :ci_job_id, dependent: :destroy
     has_one :job_archive, -> () { where(file_type: Ci::JobArtifact.file_types[:archive]) }, class_name: 'Ci::JobArtifact', foreign_key: :ci_job_id
     has_one :job_metadata, -> () { where(file_type: Ci::JobArtifact.file_types[:metadata]) }, class_name: 'Ci::JobArtifact', foreign_key: :ci_job_id
-
     # The "environment" field for builds is a String, and is the unexpanded name
     def persisted_environment
       @persisted_environment ||= Environment.find_by(

app/uploaders/job_artifact_uploader.rb

@@ -3,12 +3,6 @@ class JobArtifactUploader < ArtifactUploader
     @artifact = artifact
   end
-  # If this record exists, the associatied artifact is there. Every artifact
-  # persisted will have an associated file
-  def exists?
-    true
-  end
-
   def size
     return super unless @artifact.size

spec/factories/ci/builds.rb

@@ -155,8 +155,10 @@ FactoryGirl.define do
     end
     trait :artifacts do
-      job_archive factory: :ci_job_artifact
-      job_metadata factory: :ci_job_metadata
+      after(:create) do |build|
+        create(:ci_job_artifact, job: build)
+        create(:ci_job_metadata, job: build)
+      end
     end
     trait :expired do

spec/factories/ci/job_artifacts.rb

@@ -2,15 +2,17 @@ include ActionDispatch::TestProcess
 FactoryGirl.define do
   factory :ci_job_artifact, class: Ci::JobArtifact do
-    project
     job factory: :ci_build
     file_type :archive
+    after :build do |artifact|
+      artifact.project ||= artifact.job.project
+    end
+
     after :create do |artifact|
       if artifact.archive?
         artifact.file = fixture_file_upload(Rails.root.join('spec/fixtures/ci_build_artifacts.zip'),
                                             'application/zip')
-
         artifact.save
       end
     end