Add evm_owner, tenant, group to orch stacks

db/migrate/20181010134649_add_evm_owner_to_orchestration_stacks.rb

@@ -0,0 +1,7 @@
+class AddEvmOwnerToOrchestrationStacks < ActiveRecord::Migration[5.0]
+  def change
+    add_reference :orchestration_stacks, :evm_owner_id, :bigint
+    add_reference :orchestration_stacks, :miq_group_id, :bigint
+    add_reference :orchestration_stacks, :tenant_id, :bigint
+  end
+end

db/migrate/20181016140921_migrate_orch_stacks_to_have_ownership_concept.rb

@@ -0,0 +1,19 @@
+class MigrateOrchStacksToHaveOwnershipConcept < ActiveRecord::Migration[5.0]
+  def up
+    say_with_time("Migrating existing orchestration stacks to have direct owners, groups, tenant") do
+      OrchestrationStack.where.not(:ems_id => nil).find_each do |os|
+        os.evm_owner_id = os.ext_management_system.tenant_identity
+        os.tenant_id = os.ext_management_system.tenant_identity.current_tenant.id
+        os.group_id = os.ext_management_system.tenant_identity.current_group.id
+        os.save
+      end
+      OrchestrationStack.where(:ems_id => nil).find_each do |os|
+        # if orch stack has no ems, can we even set any of this stuff?
+      end
+    end
+  end
+
+  def down
+    OrchestrationStack.update_all(:evm_owner_id => nil, :tenant_id => nil, :group_id => nil)
+  end
+end