Rename Artifact to JobArtifact, split metadata out

Two things at ones, as there was no clean way to seperate the commit and
give me feedback from the tests.

But the model Artifact is now JobArtifact, and the table does not have a
type anymore, but the metadata is now its own model:
Ci::JobArtifactMetadata.

2 files changed, 19 insertions, 21 deletions

diff --git a/db/migrate/20170918072948_create_artifacts.rb b/db/migrate/20170918072948_create_artifacts.rb
deleted file mode 100644
index 1dd5edc3f15..00000000000
--- a/db/migrate/20170918072948_create_artifacts.rb
+++ /dev/null
@@ -1,21 +0,0 @@
-class CreateArtifacts < ActiveRecord::Migration
-  def up
-    create_table :ci_artifacts do |t|
-      t.belongs_to :project, null: false, foreign_key: { on_delete: :cascade }
-      t.belongs_to :ci_build, null: false, foreign_key: { on_delete: :cascade }
-      t.integer :type, default: 0, null: false
-      t.integer :size, limit: 8, default: 0
-
-      t.datetime_with_timezone :created_at, null: false
-      t.datetime_with_timezone :updated_at, null: false
-
-      t.text :file
-    end
-
-    add_index(:ci_artifacts, [:project_id, :ci_build_id], unique: true)
-  end
-
-  def down
-    drop_table(:ci_artifacts)
-  end
-end
diff --git a/db/migrate/20170918072948_create_job_artifacts.rb b/db/migrate/20170918072948_create_job_artifacts.rb
new file mode 100644
index 00000000000..6d1756f368c
--- /dev/null
+++ b/db/migrate/20170918072948_create_job_artifacts.rb
@@ -0,0 +1,19 @@
+class CreateJobArtifacts < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :ci_job_artifacts do |t|
+      t.belongs_to :project, null: false, index: true, foreign_key: { on_delete: :cascade }
+      t.integer :ci_job_id, null: false, index: true
+      t.integer :size, limit: 8
+      t.integer :file_type, null: false, index: true
+
+      t.datetime_with_timezone :created_at, null: false
+      t.datetime_with_timezone :updated_at, null: false
+
+      t.string :file
+    end
+  end
+end