Native group milestones

3 files changed, 42 insertions, 2 deletions

diff --git a/db/migrate/20170723183807_add_group_id_to_milestones.rb b/db/migrate/20170723183807_add_group_id_to_milestones.rb
new file mode 100644
index 00000000000..e46fc4f80f0
--- /dev/null
+++ b/db/migrate/20170723183807_add_group_id_to_milestones.rb
@@ -0,0 +1,18 @@
+class AddGroupIdToMilestones < ActiveRecord::Migration
+  DOWNTIME = false
+
+  def up
+    change_column_null :milestones, :project_id, true
+
+    add_column :milestones, :group_id, :integer
+  end
+
+  def down
+    # We cannot rollback project_id not null constraint if there are records
+    # with null values.
+    execute "DELETE from milestones WHERE project_id IS NULL"
+
+    remove_column :milestones, :group_id
+    change_column :milestones, :project_id, :integer, null: false
+  end
+end
diff --git a/db/migrate/20170724184243_add_group_milestone_id_indexes.rb b/db/migrate/20170724184243_add_group_milestone_id_indexes.rb
new file mode 100644
index 00000000000..d48b1884179
--- /dev/null
+++ b/db/migrate/20170724184243_add_group_milestone_id_indexes.rb
@@ -0,0 +1,19 @@
+class AddGroupMilestoneIdIndexes < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  DOWNTIME = false
+
+  def up
+    add_concurrent_foreign_key :milestones, :namespaces, column: :group_id, on_delete: :cascade
+
+    add_concurrent_index :milestones, :group_id
+  end
+
+  def down
+    remove_foreign_key :milestones, column: :group_id
+
+    remove_concurrent_index :milestones, :group_id
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index f4d83a4dd9c..d50e623d0f0 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170703102400) do
+ActiveRecord::Schema.define(version: 20170724184243) do
 
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
@@ -829,7 +829,7 @@ ActiveRecord::Schema.define(version: 20170703102400) do
 
   create_table "milestones", force: :cascade do |t|
     t.string "title", null: false
-    t.integer "project_id", null: false
+    t.integer "project_id"
     t.text "description"
     t.date "due_date"
     t.datetime "created_at"
@@ -840,10 +840,12 @@ ActiveRecord::Schema.define(version: 20170703102400) do
     t.text "description_html"
     t.date "start_date"
     t.integer "cached_markdown_version"
+    t.integer "group_id"
   end
 
   add_index "milestones", ["description"], name: "index_milestones_on_description_trigram", using: :gin, opclasses: {"description"=>"gin_trgm_ops"}
   add_index "milestones", ["due_date"], name: "index_milestones_on_due_date", using: :btree
+  add_index "milestones", ["group_id"], name: "index_milestones_on_group_id", using: :btree
   add_index "milestones", ["project_id", "iid"], name: "index_milestones_on_project_id_and_iid", unique: true, using: :btree
   add_index "milestones", ["title"], name: "index_milestones_on_title", using: :btree
   add_index "milestones", ["title"], name: "index_milestones_on_title_trigram", using: :gin, opclasses: {"title"=>"gin_trgm_ops"}
@@ -1601,6 +1603,7 @@ ActiveRecord::Schema.define(version: 20170703102400) do
   add_foreign_key "merge_requests", "projects", column: "target_project_id", name: "fk_a6963e8447", on_delete: :cascade
   add_foreign_key "merge_requests_closing_issues", "issues", on_delete: :cascade
   add_foreign_key "merge_requests_closing_issues", "merge_requests", on_delete: :cascade
+  add_foreign_key "milestones", "namespaces", column: "group_id", name: "fk_95650a40d4", on_delete: :cascade
   add_foreign_key "milestones", "projects", name: "fk_9bd0a0c791", on_delete: :cascade
   add_foreign_key "notes", "projects", name: "fk_99e097b079", on_delete: :cascade
   add_foreign_key "oauth_openid_requests", "oauth_access_grants", column: "access_grant_id", name: "fk_oauth_openid_requests_oauth_access_grants_access_grant_id"