extend relationships to define the appropriate class names

WIP: quite a bit of stuff has happened since then.
there is a HasNetworkManagerMixin that may meet many of the needs

WIP: do a diff with origin to make sure the rebase didn't change too much
seems quite a few concepts have been changed in master
so definitely need to re-evaluate this

use parent definition of ensure since they are now pretty generic.
They may be no longer necessary and a build_ may suffice.

Use parent definition of propagation so all attributes go across
Extend parent managers to group the functionality together

WIP: quite a bit of stuff has happened since then.
there is a HasNetworkManagerMixin that may meet many of the needs

Author: kbrock

app/models/manageiq/providers/openstack/cloud_manager.rb

@@ -27,13 +27,17 @@ class ManageIQ::Providers::Openstack::CloudManager < ManageIQ::Providers::CloudM
           :foreign_key => :parent_ems_id,
           :class_name  => "ManageIQ::Providers::Openstack::NetworkManager",
           :autosave    => true,
-          :dependent   => :destroy
+          :dependent   => :destroy,
+          :inverse_of  => :parent_manager
   has_many :storage_managers,
            :foreign_key => :parent_ems_id,
-           :class_name  => "ManageIQ::Providers::StorageManager",
+           :class_name  => "ManageIQ::Providers::Openstack::StorageManager",
            :autosave    => true,
-           :dependent   => :destroy
+           :dependent   => :destroy,
+           :auto_save   => true,
+           :inverse_of  => :parent_manager
   has_many :snapshots, :through => :vms_and_templates
+
   include ManageIQ::Providers::Openstack::CinderManagerMixin
   include ManageIQ::Providers::Openstack::SwiftManagerMixin
   include ManageIQ::Providers::Openstack::ManagerMixin
@@ -67,9 +71,12 @@ class ManageIQ::Providers::Openstack::CloudManager < ManageIQ::Providers::CloudM
     unsupported_reason_add(:swift_service, "Swift service unavailable") unless openstack_handle.detect_volume_service.name == :swift
   end
 
+  # TODO: move to after_initialization
   before_create :ensure_managers
 
+  # TODO: move to before_validation
   before_update :ensure_managers_zone_and_provider_region
+  # TODO: after fixing inverse_of, this may go away
   after_save :refresh_parent_infra_manager
 
   private_class_method def self.provider_id_options
@@ -445,51 +452,19 @@ def ensure_managers
     ensure_network_manager
     ensure_cinder_manager
     ensure_swift_manager
+    # TODO: remove when this moves to before_initialization
     ensure_managers_zone_and_provider_region
   end
 
-  def ensure_managers_zone_and_provider_region
-    if network_manager
-      network_manager.enabled         = enabled
-      network_manager.zone_id         = zone_id
-      network_manager.tenant_id       = tenant_id
-      network_manager.provider_region = provider_region
-    end
-
-    if cinder_manager
-      cinder_manager.enabled         = enabled
-      cinder_manager.zone_id         = zone_id
-      cinder_manager.tenant_id       = tenant_id
-      cinder_manager.provider_region = provider_region
-    end
-
-    if swift_manager
-      swift_manager.enabled         = enabled
-      swift_manager.zone_id         = zone_id
-      swift_manager.tenant_id       = tenant_id
-      swift_manager.provider_region = provider_region
-    end
+  # sigh, methods like this always start out innocent enough
+  def child_manager_references
+    [network_manager, cinder_manager, swift_manager].compact
   end
 
-  def ensure_network_manager
-    build_network_manager unless network_manager
-  end
-
-  def ensure_cinder_manager
-    build_cinder_manager unless cinder_manager
-  end
-
-  def ensure_swift_manager
-    build_swift_manager unless swift_manager
-  end
-
-  after_save :save_on_other_managers
-
-  def save_on_other_managers
-    storage_managers.update_all(:tenant_mapping_enabled => tenant_mapping_enabled)
-    if network_manager
-      network_manager.tenant_mapping_enabled = tenant_mapping_enabled
-      network_manager.save!
+  def ensure_managers_zone_and_provider_region
+    child_manager_references.each do |child_manager|
+      propagate_child_manager_attributes(child_manager)
+      child_manager.tenant_mapping_enabled = tenant_mapping_enabled
     end
   end
 

app/models/manageiq/providers/openstack/infra_manager.rb

@@ -14,11 +14,17 @@ class ManageIQ::Providers::Openstack::InfraManager < ManageIQ::Providers::InfraM
 
   include ManageIQ::Providers::Openstack::ManagerMixin
   include HasManyOrchestrationStackMixin
-  include HasNetworkManagerMixin
+  include HasNetworkManagerMixin # TODO: also included in parent class
+
+  has_one :network_manager,
+          :foreign_key => :parent_ems_id,
+          :class_name  => "ManageIQ::Providers::Openstack::NetworkManager",
+          :autosave    => true,
+          :dependent   => :destroy
 
   before_save :ensure_parent_provider
   before_destroy :destroy_parent_provider
-  before_create :ensure_managers
+  before_create :ensure_managers # defined by HasNetworkManagerMixin
   before_update :ensure_managers_zone_and_provider_region
 
   supports :create
@@ -286,7 +292,7 @@ def self.params_for_create
     }
   end
 
-  def ensure_network_manager
+  def ensure_network_manager # TODO: override has_many so type is not passed in
     build_network_manager(:type => 'ManageIQ::Providers::Openstack::NetworkManager') unless network_manager
   end