Merge branch 'issue-boards' into 'master'

Issue boards

- Issue: #17907
- Issue backend: #20335
- Backend MR: !5548
- Frontend MR: !5554
- Documentation !5713

- [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added
- [X] ~~[Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)~~
- [X] ~~API support added~~
- Tests
  - [x] Added for this feature/bug
  - [x] All builds are passing
- [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [x] Branch has no merge conflicts with `master` (if you do - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

See merge request !5548

4 files changed, 68 insertions, 0 deletions

diff --git a/db/migrate/20160727191041_create_boards.rb b/db/migrate/20160727191041_create_boards.rb
new file mode 100644
index 00000000000..56afbd4e030
--- /dev/null
+++ b/db/migrate/20160727191041_create_boards.rb
@@ -0,0 +1,13 @@
+class CreateBoards < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :boards do |t|
+      t.references :project, index: true, foreign_key: true, null: false
+
+      t.timestamps null: false
+    end
+  end
+end
diff --git a/db/migrate/20160727193336_create_lists.rb b/db/migrate/20160727193336_create_lists.rb
new file mode 100644
index 00000000000..61d501215f2
--- /dev/null
+++ b/db/migrate/20160727193336_create_lists.rb
@@ -0,0 +1,16 @@
+class CreateLists < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  def change
+    create_table :lists do |t|
+      t.references :board, index: true, foreign_key: true, null: false
+      t.references :label, index: true, foreign_key: true
+      t.integer :list_type, null: false, default: 1
+      t.integer :position
+
+      t.timestamps null: false
+    end
+  end
+end
diff --git a/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb b/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb
new file mode 100644
index 00000000000..baf2e70b127
--- /dev/null
+++ b/db/migrate/20160803161903_add_unique_index_to_lists_label_id.rb
@@ -0,0 +1,15 @@
+class AddUniqueIndexToListsLabelId < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  DOWNTIME = false
+
+  disable_ddl_transaction!
+
+  def up
+    add_concurrent_index :lists, [:board_id, :label_id], unique: true
+  end
+
+  def down
+    remove_index :lists, column: [:board_id, :label_id] if index_exists?(:lists, [:board_id, :label_id], unique: true)
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 52ba60ace11..666a4bef574 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -117,6 +117,14 @@ ActiveRecord::Schema.define(version: 20160810142633) do
   add_index "award_emoji", ["user_id", "name"], name: "index_award_emoji_on_user_id_and_name", using: :btree
   add_index "award_emoji", ["user_id"], name: "index_award_emoji_on_user_id", using: :btree
 
+  create_table "boards", force: :cascade do |t|
+    t.integer  "project_id", null: false
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
+
+  add_index "boards", ["project_id"], name: "index_boards_on_project_id", using: :btree
+
   create_table "broadcast_messages", force: :cascade do |t|
     t.text     "message",    null: false
     t.datetime "starts_at"
@@ -533,6 +541,19 @@ ActiveRecord::Schema.define(version: 20160810142633) do
 
   add_index "lfs_objects_projects", ["project_id"], name: "index_lfs_objects_projects_on_project_id", using: :btree
 
+  create_table "lists", force: :cascade do |t|
+    t.integer  "board_id",               null: false
+    t.integer  "label_id"
+    t.integer  "list_type",  default: 1, null: false
+    t.integer  "position"
+    t.datetime "created_at",             null: false
+    t.datetime "updated_at",             null: false
+  end
+
+  add_index "lists", ["board_id", "label_id"], name: "index_lists_on_board_id_and_label_id", unique: true, using: :btree
+  add_index "lists", ["board_id"], name: "index_lists_on_board_id", using: :btree
+  add_index "lists", ["label_id"], name: "index_lists_on_label_id", using: :btree
+
   create_table "members", force: :cascade do |t|
     t.integer  "access_level",       null: false
     t.integer  "source_id",          null: false
@@ -1114,6 +1135,9 @@ ActiveRecord::Schema.define(version: 20160810142633) do
 
   add_index "web_hooks", ["project_id"], name: "index_web_hooks_on_project_id", using: :btree
 
+  add_foreign_key "boards", "projects"
+  add_foreign_key "lists", "boards"
+  add_foreign_key "lists", "labels"
   add_foreign_key "personal_access_tokens", "users"
   add_foreign_key "protected_branch_merge_access_levels", "protected_branches"
   add_foreign_key "protected_branch_push_access_levels", "protected_branches"