Introduce NotificationSetting model

It will hold notification setting per group or per project. It will
allow get rid of notification level stored in Member model

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/app/models/notification_setting.rb b/app/models/notification_setting.rb
new file mode 100644
index 00000000000..0dce146b7a9
--- /dev/null
+++ b/app/models/notification_setting.rb
@@ -0,0 +1,14 @@
+class NotificationSetting < ActiveRecord::Base
+  belongs_to :user
+  belongs_to :source, polymorphic: true
+
+  validates :user, presence: true
+  validates :source, presence: true
+  validates :level, presence: true
+  validates :user_id, uniqueness: { scope: [:source_type, :source_id],
+                                    message: "already exists in source",
+                                    allow_nil: true }
+  # Notification level
+  # Note: When adding an option, it MUST go on the end of the array.
+  enum level: [:disabled, :participating, :watch, :global, :mention]
+end