Scaffold out rules domain

app/models/rule.rb

@@ -0,0 +1,7 @@
+class Rule < ApplicationRecord
+  belongs_to :family
+  has_many :triggers, dependent: :destroy
+  has_many :actions, dependent: :destroy
+
+  validates :effective_date, presence: true
+end

app/models/rule/action.rb

@@ -0,0 +1,5 @@
+class Rule::Action < ApplicationRecord
+  belongs_to :rule
+
+  validates :action_type, presence: true
+end

app/models/rule/trigger.rb

@@ -0,0 +1,7 @@
+class Rule::Trigger < ApplicationRecord
+  self.table_name = "rule_triggers"
+
+  belongs_to :rule
+
+  validates :trigger_type, presence: true
+end