Merge branch 'group-todos' into 'master'

Group todos

See merge request gitlab-org/gitlab-ce!20675

2 files changed, 40 insertions, 1 deletions

diff --git a/db/migrate/20180608091413_add_group_to_todos.rb b/db/migrate/20180608091413_add_group_to_todos.rb
new file mode 100644
index 00000000000..20ba4849057
--- /dev/null
+++ b/db/migrate/20180608091413_add_group_to_todos.rb
@@ -0,0 +1,36 @@
+class AddGroupToTodos < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  class Todo < ActiveRecord::Base
+    self.table_name = 'todos'
+
+    include ::EachBatch
+  end
+
+  def up
+    add_column(:todos, :group_id, :integer) unless group_id_exists?
+    add_concurrent_foreign_key :todos, :namespaces, column: :group_id, on_delete: :cascade
+    add_concurrent_index :todos, :group_id
+
+    change_column_null :todos, :project_id, true
+  end
+
+  def down
+    remove_foreign_key_without_error(:todos, column: :group_id)
+    remove_concurrent_index(:todos, :group_id)
+    remove_column(:todos, :group_id) if group_id_exists?
+
+    Todo.where(project_id: nil).each_batch { |batch| batch.delete_all }
+    change_column_null :todos, :project_id, false
+  end
+
+  private
+
+  def group_id_exists?
+    column_exists?(:todos, :group_id)
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 2bef2971f29..709c7a9c121 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1988,7 +1988,7 @@ ActiveRecord::Schema.define(version: 20180726172057) do
 
   create_table "todos", force: :cascade do |t|
     t.integer "user_id", null: false
-    t.integer "project_id", null: false
+    t.integer "project_id"
     t.integer "target_id"
     t.string "target_type", null: false
     t.integer "author_id", null: false
@@ -1998,10 +1998,12 @@ ActiveRecord::Schema.define(version: 20180726172057) do
     t.datetime "updated_at"
     t.integer "note_id"
     t.string "commit_id"
+    t.integer "group_id"
   end
 
   add_index "todos", ["author_id"], name: "index_todos_on_author_id", using: :btree
   add_index "todos", ["commit_id"], name: "index_todos_on_commit_id", using: :btree
+  add_index "todos", ["group_id"], name: "index_todos_on_group_id", using: :btree
   add_index "todos", ["note_id"], name: "index_todos_on_note_id", using: :btree
   add_index "todos", ["project_id"], name: "index_todos_on_project_id", using: :btree
   add_index "todos", ["target_type", "target_id"], name: "index_todos_on_target_type_and_target_id", using: :btree
@@ -2389,6 +2391,7 @@ ActiveRecord::Schema.define(version: 20180726172057) do
   add_foreign_key "term_agreements", "users", on_delete: :cascade
   add_foreign_key "timelogs", "issues", name: "fk_timelogs_issues_issue_id", on_delete: :cascade
   add_foreign_key "timelogs", "merge_requests", name: "fk_timelogs_merge_requests_merge_request_id", on_delete: :cascade
+  add_foreign_key "todos", "namespaces", column: "group_id", on_delete: :cascade
   add_foreign_key "todos", "notes", name: "fk_91d1f47b13", on_delete: :cascade
   add_foreign_key "todos", "projects", name: "fk_45054f9c45", on_delete: :cascade
   add_foreign_key "todos", "users", column: "author_id", name: "fk_ccf0373936", on_delete: :cascade