WIP

app/models/ci/artifact.rb

+module Ci
+  class Artifact < ActiveRecord::Base
+    belongs_to :build, class_name: "Ci::Build"
+    belongs_to :project, class_name: "Ci::Build"
+
+    enum type {
+      archive: 0,
+      metadata: 1,
+      trace: 2
+    }
+  end
+end

db/migrate/20170918072948_create_artifacts.rb

+class CreateArtifacts < ActiveRecord::Migration
+  def change
+    create_table :artifacts do |t|
+
+      t.timestamps null: false
+    end
+  end
+end

spec/models/ci/artifact_spec.rb

+require 'rails_helper'
+
+RSpec.describe Artifact, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end